Download 44º Encontro do Grupo Brasileiro de Professores de Ortodontia e

44º Encontro do Grupo Brasileiro de Professores de Ortodontia e Odontopediatria
RESUMOS ORTODONTIA
Modalidade Fórum Científico
ORTO-FC1 ACÚMULO DE DETRITOS E ATRITO DE BRÁQUETES AUTO-LIGADOS E
CONVENCIONAIS APÓS USO CLÍNICO.
Universidade Federal do Pará
Autores: Araújo RC*, Bichara LM, Araújo AM, Normando D.
Debris and Friction of Self-Ligating and Conventional Orthodontic Brackets After Clinical
Use
Objective: to compare the degree of debris and friction of conventional and self-ligating orthodontic
brackets before and after clinical use. Methods: two sets of three conventional ligated (n=16) and
self-ligating brackets (n=16) were bonded from the first molar to the first premolar, on 8 individuals,
after a passive segment of 0.019’ x 0.025’ – inch stainless steel archwire was inserted into each
group of brackets. Frictional force and debris level (via magnifying lens) was evaluated asreceived and after 8 weeks of intraoral exposure. Two-way Anova, Wilcoxon signed-rank, and
Spearman correlation were applied to statistical analysis at 0.05 level of significance. Results:
friction level in conventional brackets was significantly higher when compared to self-ligating
brackets before clinical use (p<0.001). Clinical exposure for 8 weeks provided a significant
increase of friction (p<0.001) and the debris score ( p< 0.05) on both systems. To self-ligating
brackets, friction raised in average 0.21 N (191%) while for conventional ones, this values was
0.52 N (47.2%). Micorscopic analisys showed a 50% gain in slots dirtiness from self-ligating
brackets compared to conventionals. Conclusion: Self-ligating and conventional brackets when
exposed to the oral environment for 8 weeks showed a significant increase of friction during the
sliding mechanics and in superficial slots debris. Quests about the effect of this on orthodontic
treatment time should be investigated.
ORTO-FC2 AVALIAÇÃO DO NÍVEL DA CRISTA ÓSSEA ALVEOLAR VESTIBULAR E
LINGUAL DE MOLARES INFERIORES PRÉ E POS TRATAMENTO ORTODONTICO POR
MEIO DA TOMOGRAFIA COMPUTADORIZADA DE FEIXE CÔNICO: RESULTADOS
PRELIMINARES
Faculdade de Odontologia de Bauru – Universidade de São Paulo
Autores: Santos PBD*, Herrera FS, Ferreira MC, Garib DG.
Evaluation of buccal and lingual alveolar bone crest level of mandibular second molars pre
and posttreatment by Cone-Beam Computed Tomography: Preliminary results
Objectives: The purpose of this study was to evaluate and to compare, by means of Cone-Beam
Computed Tomography, the buccal and lingual bony dehiscences of mandibular second molars
before and after molar uprighting and also to compare the alveolar bone morphology between
groups. Methodology: Nine CBCT exams were taken of patients without first molar with voxel
dimensions of 0.2 mm and field of view of 6cm using the i-CAT Cone-Beam 3-D Dental Imaging
System. Images of CBCT were divided into two groups: Group 1 (9 uprighting second molars) and
Group 2 (7 non-uprighting molars). Linear measurements were performed using the i-CAT vision
on crossectional sections between cement-enamel junction of second molar and upper area of the
alveolar bone crest. Dependent t tests were used to evaluate the alveolar bone crest level pre and
posttreatment within group. T tests were used to evaluate intergroup differences regarding the
periodontal morphology. Results: There was no significant difference between alveolar bone
height pre and posttreatment in both groups, however bone dehiscences were significantly higher
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in Group 1. Conclusions: Although, uprighting second molars have bone crest level reduced, it is
possible to control the dehiscences during the orthodontic treatment.
ORTO-FC3 DEGRADAÇÃO DE FORÇA ENTRE ELÁSTICOS INTERMAXILARES COM E SEM
LÁTEX: ESTUDO IN SITU
Universidade Estadual do Sudoeste da Bahia – UESB
Autores: Sant’Anna LIDA*, Andrade CSS, Mendes J, Anselmo C, Coqueiro RS, Santos R, Pithon
MM.
Force decay between intermaxillary elastics with and without Latex: in situ study
Objective: To evaluate force decay between intermaxillary orthodontic elastics with and without
latex, in the oral medium in different time intervals. Materials and Methods: Intermaxillary
orthodontic elastics with and without latex, of 1/8, 1/4 and 5/16 in diameter were evaluated in an in
situ study. For this purpose, 26 patients served as hosts for the elastics during the evaluation
period. Initially, on the molds of these patients, 52 thermoplasticized plates 1 mm thick were made,
onto which the orthodontic accessories were bonded, and these served to maintain the elastics
distended (30 mm) throughout the experimentation period. The force released by the elastics at
this distance was evaluated in the time intervals of0, 12 and 24 hours. Statistical analysis of the
results obtained was performed using the Friedman, Wilcoxon and Mann-Whitney tests, adopting
a 5% level of significance. Results: elastics with and without latex presented permanent
deformation and increase in internal diameter throughout the entire period. Elastics with latex, 1/8
in diameter maintained higher levels of force than those without latex. Elastics measuring 1/4 and
5/16 without latex presented a higher level of force in time intervals of 0 and 12h compared with
those with latex, but at the end of the experiment (24h) no significant difference was observed
between them (p>0.05). Conclusion: Intermaxillary elastics with latex presented a higher level of
force and underwent less degradation than those without latex.
ORTO-FC4 DESGASTE DENTÁRIO COMO ESTIMADOR DA IDADE CRONOLÓGICA EM
POPULAÇÕES INDÍGENAS
Universidade Federal do Pará
Autores: Vieira EP*, Barbosa MS, Normando D.
Tooth wear as an estimator of chronological age in amazon indigenous
The age in indigenous populations is estimated based on family structure and physical
examination performed by a medical and dental staff, as well as anthropologists. However, the
accuracy of existing methods is questionable because the main criteria used to limit its precision in
children. The aim of this study is to evaluate the occlusal tooth wear, as an estimator of age in
indigenous populations of the Xingu. We examined 263 individuals on permanent dentition. Forty
individuals living in an urban area, Belém – PA (Brazil), were used as control group, and 223 were
Indigenous from the Middle Valley of Xingu. In the indigenous population 126 belonged to ethnic
Arara, 62 Xicrin-Kayapó and 46 Assurini. A modifief ooth wear index was used according to
Mockers, Mafart and Aubry (2004). Data were statistically examined by linear regression analysis
at 95% confidence. We observed a strong association between tooth wear and chronological age
in indigenous populations. The wear was able to explain 86% of the variation in age at Arara
ethnicity, 69% among Xicrin-Kaiapó and 64% in group Assurini. In the urban population only 10%
of age could have determined by tooth wear. Tooth wear can be used as a helpful reliable index to
determine chronological age in indigenous populations from Xingu River.
Keywords: Age Determination by Teeth, Tooth Wear, Indigenous Population.
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ORTO-FC5 EFETIVIDADE DE VERNIZ COM CPP-ACP NA PREVENÇÃO DE LESÃO DE
CÁRIE AO REDOR DE BRÁQUETES ORTODÔNTICOS
Universidade Estadual do Sudoeste da Bahia – UESB
Autores: Andrade CSS*, Sant’Anna LIDA, Santos M, Leão Filho JCB, Braz AKS, Araujo RE,
Tanaka OM, Fidalgo T, Maia TC, Santos AM, Pithon MM.
Effectiveness of varnish with CPP-ACP in Prevention of Caries Lesions around Orthodontic
Brackets: An OCT Evaluation
Objective: To evaluate the in vitro efficiency of applying varnish containing Casein
Phosphopeptide (CPP) and Amorphous Calcium Phosphate (ACP) in prevention of caries lesions
around orthodontic brackets. Materials and Methods: For this purpose, brackets were bonded to
the vestibular surface of bovine incisors, and eight groups were formed (n=15) according to
exposure of oral hygiene substances and enamel varnish: 1 (control) brushing only performed, 2
(control) brushing + use of mouth wash with fluoride, 3 Duraphat varnish application only (ColgatePalmolive Ind. E Com. Ltda, São Paulo, SP, Brazil), 4 Duraphat + brushing, 5 Duraphat + brushing
+ mouth wash, 6 MI varnish application (GC America, United States, USA), 7 MI + brushing and 8
MI+ brushing + mouth wash. The experimental groups alternated between pH cycling and the
procedures described, and were kept in an oven at temperature of 37°C. Both brushing and
immersion in solutions was performed in a time interval of 1 minute, followed by washing in
deionized water three times a day for 28 days of experimentation. Afterwards evaluation by Optical
Coherence Tomography (OCT) of the special type (Ganymede OCT/Thorlabs, Newton, USA) was
performed. In each group a scanning exam of the white spot lesion area (around the region where
brackets were bonded) and depth measurement of caries lesions were performed. Results:
Groups 1 and 3 were shown to differ statistically from Groups 5, 6, 7, and 8 (p=.000). MI varnish
was shown to be more effective in diminishing caries lesion depth, when compared with Duraphat,
irrespective of being associated with brushing and mouth wash, or not. Conclusion: Application
CPP-ACP-containing varnish irrespective of being associated with brushing and mouthwash, or
not, reduced depth of caries lesions around orthodontic brackets.
ORTO-FC6 IMPACTO DA PALATOPLASTIA NA RELAÇÃO SAGITAL MAXILOMANDIBULAR DE PACIENTES COM FISSURA LÁBIO-PALATINA UNILATERAL
Universidade Federal do Pará
Autores: Bichara LM*, Araújo RC, Normando D.
Primary palatoplasty impact on maxillomandibular sagittal relationship of UCLP patients: A
systematic review and meta-analysis.
Objective: To evaluate through a meta-analysis isolated effects of lip and palate primary surgery
on sagittal maxillary and mandibular relationship among unilateral cleft lip and palate (UCLP)
patients. Methods: This meta-analysis was registered at PROSPERO. A search on electronic
databases was done using the terms “cleft lip palate”, “growth”, “surgery” and “repair”. Hand
search and “grey literature” was also performed. Only controlled clinical trials, retrospective or
prospective, with non-syndromic unilateral UCLP, published between 1960 and 2012 were
included. Selected papers were assessed by two researchers and must include one group of
UCLP operated on lip and palate compared to operated only on the lip. Data heterogeneity was
tested and then individual means, SD and sample size were collected and summarized using a
random effects model meta-analysis. Results: Six articles were selected for the systematic
review, but just 4 were included in the meta-analysis. Although all studies performed lateral
cephalometric analysis, just SNA, SNB and ANB were common between them. Statistical analysis
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didn’t show significant differences for SNA and SNB between patients operated only on lip from lip
and palate surgery. ANB evaluation showed a small, but statistical difference. Conclusions:
Impaired sagittal growth of the maxilla observed in patients with unilateral cleft lip and palate, is a
basic consequence of lip surgical repair. Changes produced by palatal repair on maxilla and
mandible are insignificant. Palatoplasty seems to cause a minor, but statistically significant,
change on intermaxillary relationship.
ORTO-FC7 ÍNDICE DA PERCEPÇÃO DA SEVERIDADE DA MÁ OCLUSÃO NA DENTIÇÃO
DECÍDUA (IPSM): DESENVOLVIMENTO E VALIDAÇÃO.
Universidade Federal dos Vales do Jequitinhonha e Mucuri
Autores: Pereira TS*, Homem MA, Veloso IMP, Ramos-Jorge J, Marques LS, Ramos-Jorge ML.
Perception of severity of malocclusion index in the primary dentition (PSMI): development
and validation
Aim: To develop and validate a perception of severity of malocclusion index (PSMI) for the primary
dentition. Methods: The sample consisted of 294 children 3-5 years of age. A calibrated
professional examined children for the presence and severity of malocclusion. The severity was
indicated by a visual scale of 10 points (less severe 1 - 10 most severe). Descriptive analysis,
linear regression uni / multivariate and post hoc Mann-Whitney tests were used. Results: The
types of malocclusion independently associated with perception of the severity of malocclusion
were: lip coverage (p˂0.001), crowding (p˂0.001), diastema in millimeters (p=0.002), open bite in
millimeters (p˂0.001), overbite in millimeters (p=0.010) and anterior crossbite in millimeters (p ˂
0001). The linear regression equation allowed the construction of the index as follows: IPSM = (lip
coverage X 3) + (crowding X 2) + (diastema X 0.5) + (overbite X 0.5) + (anterior open bite X 1) +
(anterior crossbite X 2) + 3. The sum of the PSMI scores will indicate whether the child has
malocclusion absent (3.0 to 4.0), mild (4.1 to 5.4), moderate (5.5 to 8.9) and severe (≥ 9).
Conclusion: The classification of malocclusion severity (absent, mild, moderate and severe)
according to the IPSM demonstrates the applicability of the instrument in epidemiological surveys
and clinical.
ORTO-FC8 O ENSINO DA ORTODONTIA NA GRADUAÇÃO E NA FORMAÇÃO DO CLÍNICOGERAL SOB A PERCEPÇÃO DO ALUNO
Universidade Federal de Minas Gerais
Autores: Barroso MCF*, Lages EMB, Vale MP, Ferreira EF.
The undergraduate orthodontics teaching and general practice under the student
perception
The purpose of this paper is to identify if the undergraduate orthodontics contributes to form
general practice besides the national curricular guidelines (NCG) established by the Ministry of
Education and Culture (MEC) from Brazil. This is a transversal, investigative and quantitative
study with 225 senior undergraduate students of five different dentistry schools from Minas Gerais,
Brazil. It was applied a questionnaire of 37 questions, 36 closed questions and one open question.
All questions were related to personal data, content taught, teaching methodology, orthodontics
skills (measured by diagnoses and treatment decision) and the intention of to realize preventive
and interceptive procedures, nominated in this paper as autonomy. From all 232 undergraduate
students, only 225 questionnaires were able to the study, with a 3,02% of non-response
questionnaires. Just 37,5% of undergraduate students answered that would do orthodontics
procedures after college. The orthodontics skills showed up association with to do orthodontics
procedures option in their professional career as well to discuss clinical events with the professors
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as teaching methodology (p≤0,05). This paper concludes, inspire of the NCG demands, that
undergraduate orthodontics of researched dentistry school didn’t contribute on all the way on the
general practice formation until now.
ORTO-FC9 OS EFEITOS DA QUIMIOCINA CCL3 E DO RECEPTOR CCR1 NA
REMODELAÇÃO ÓSSEA INDUZIDA POR FORÇA ORTODÔNTICA EM CAMUNDONGOS
Pontifícia Universidade Católica de Minas Gerais (PUC Minas)
Autores: Andrade Jr. I*,Taddei SRA, Queiroz-Junior CM, Moura AP, Garlet GP, Proudfoot AEI,
Teixeira MM, Silva TA.
The effect of CCL3 and CCR1 in bone remodeling induced by mechanical loading during
orthodontic tooth movement in mice
Objective: Bone remodeling (BR) is affected by mechanical loading and inflammatory mediators,
including chemokines. The chemokine CCL3 is involved in BR by binding to chemokine receptors
CCR1 and CCR5 expressed on osteoclasts and osteoblasts. Our group has previously
demonstrated that CCR5 down-regulates mechanical loading-induced bone resorption. In this
study we investigated the role of CCR1 and CCL3 in BR induced by mechanical loading during
orthodontic tooth movement (OTM) in mice. Methods: A coil spring was placed in C57BL6/J,
CCL3-/-, CCR1-/-, vehicle and Met-RANTES (an antagonist of CCR5 and CCR1) treated mice.
Histopathologic analysis revealed the amount of OTM and osteoclasts. The expression of
mediators involved in BR was evaluated by RT-PCR. Results: BR was significantly decreased in
CCL3-/- and CCR1-/- mice and in animals treated with Met-RANTES. mRNA levels of RANK, its
ligand RANKL, tumor necrosis factor alpha (TNF-α) and RANKL/osteoprotegerin (OPG) ratio were
diminished in the periodontium of CCL3-/- and Met-RANTES-treated mice. Met-RANTES
treatment also reduced the levels of cathepsin K and metalloproteinase 13 (MMP13). The
expression of the osteoblast markers RUNX2 and periostin was decreased, while osteocalcin
(OCN) was augmented in CCL3-/- and Met-RANTES-treated mice. Conclusion: Altogether, these
findings show that CCR1 is pivotal for BR induced by mechanical loading during OTM and these
actions depend, at least in part, on CCL3.
Modalidade Pôster
ORTO-P1 A INFLUÊNCIA DE COMPONENTES DO ÍNDICE PAR NA SATISFAÇÃO DO
PACIENTE ADULTO PÓS TRATAMENTO ORTODÔNTICO
Associação Brasileira de Odontologia – Pará
Autores: Cecim RL*; Paixão DBP; Medeiros RS; Maia NG Maia, AF Normando D; Mendes SMA.
The influence of components of the PAR Index on patient satisfaction after adult
orthodontic treatment.
Objective: To evaluate if any single factor of the PAR Index influences on the degree of adult
patient satisfaction after orthodontic treatment in the long term. Methods: Were analyzed, through
the PAR index, occlusal changes occurring after the orthodontic treatment in the long term (5 to 25
years - an average of 8.5 years) using plaster models of 208 adult patients treated with straightwire orthodontic fixed appliance. The index questionnaire of Dental Impact Daily Living (DI DL)
was used to assess patient satisfaction with the outcome of orthodontic treatment in the long term
and see which components of the PAR Index were more relevant to the patient. Multiple linear
regression analysis and step by step were used to evaluate the influence of the dependent
variables, satisfaction and appearance, with the independent variable, PAR Index components.
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Results: The components of the PAR Index show a determination in 17.2% (p <0.0001) on the
total satisfaction of the patient regarding their dental occlusion in at least 5 years after treatment (p
<0.0001). The DIDL shows the appearance as the most relevant category to the patient, being
influenced by the PAR index in 31.8% (p <0.0001). The PAR Index measures that had more
determination on satisfaction were the anterior superior 17.79% (p <0.0001), anterior inferior
12.07% (p <0.0001) and overjet 1.99% (p = 0.0148). Conclusions: The factors of the PAR index
had weak association with satisfaction and moderate association with appearance of adult patients
after orthodontic treatment in the long term. The PAR Index measures that had more significance
were those related to the esthetic area.
ORTO-P2 ALTERAÇÕES DIMENSIONAIS ESPONTÂNEAS DO ARCO DENTÁRIO
INFERIOR EM ADULTOS JOVENS SEM TRATAMENTO ORTODÔNTICO
Universidade Federal do Pará – UFPA
Autores: Castro MLSS*, Pontes LF, Normando D.
Spontaneous dimensional changes of the lower arch for young adults with orthodontic
treatment.
This study evaluates the changes of spontaneous alignment of the lower dental arch and its
dimensions, using a longitudinal study in young adults without orthodontic treatment. Twenty pairs
of plaster’s models of the lower arch were obtained in two stages. In the first test, subjects had an
average age of 20.25 years, while in the second test, the average age was 31.2 years. The results
indicate a significant reduction of the dimensions of the arc, in the inter-canine width (P = 0.0089),
in the length of the right (P = 0.001) and left arch (P <0.001), in the inter-molars width (P = 0.022),
which resulted in an increase Little irregularity index (P <0.0010). Changes in the Little Index
showed no statistically significant association with changes in arch dimensions, and cannot be
predicted from the severity by the end of the second life decade (P = 0.5051). The results suggest
that the post-growth maturation process of the lower arch leads to a reduction of the dimensions of
the arch and a mild significant increase of the crowding, even in individuals without orthodontic
treatment.
ORTO-P3 A HABILIDADE DE ORTODONTISTAS E CIRURGIÕES BUCO-MAXILO-FACIAIS
EM PREDIZER A ERUPÇÃO DOS TERCEIROS MOLARES INFERIORES
Associação Brasileira de Odontologia- Seção PA
Autores: Oliveira JFCB*, Bastos AC, Mello KFR, Leão PB.
The ability of maxillofacial surgeons and orthodontists to predict the eruption of
mandibular third molars.
Aim: The aim of this paper was to evaluate the ability of maxillofacial surgeons and orthodontists
to predict the eruption of mandibular third molars. Materials and methods: seventeen panoramic
radiographs of orthodontically treated patients, nonextraction cases, ranging from 11 to 17 years
old. The radiographs were digitalized and presented along with a questionnaire to 56
professionals, who were 28 orthodontists and 28 oral and maxillofacial surgeons. Then they were
requested to express their opinions on how to proceed toward the right and left mandibular third
molars. In a follow up clinic and radiographic evaluation, when the patients were over 18, the total
eruption of all third molars (n=34) included in the sample was attested. A radiograph was doubled
in order to evaluate the error of the method. Findings: An excellent reliability was observed
between maxillofacial surgeons and orthodontists (Kappa= 0.76; p<0.0001). The intra-group
reliability was also excellent to orthodontists (Kappa= 0.96) and surgeons (Kappa= 0.83).
Extraction was the decision for 49,6% of the surgeons and 61,6% for orthodontists (p<0.0001).
Nevertheless, both experts suggested a considerable number of extractions, proving to be unable
to predict the eruption of the mandibular third molar. Conclusion: Orthodontists and maxillofacial
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surgeons are not able to predict the eruption of mandibular third molars. Consequently, they tend
to indicate unnecessary extractions.
ORTO-P4 ANÁLISE DA MORFOLOGIA FACIAL DE POPULAÇÕES INDÍGENAS DO VALE
MÉDIO DO XINGU
Universidade Federal do Pará
Autores: Almeida SC*, Barbosa MS, Quintão C, Normando ADC.
Facial morphology analysis of indigenous people from middle xingu valley
Objective: To evaluate comparatively the characteristics of indigenous face morphology from the
Middle Xingu Valley. Methods: The sample was composed of 106 indigenous, in permanent
dentition, belonging to villages Arara-Laranjal (n=35), Arara-Iriri (n=20), Xicrin-Kaiapó (n=24) and
Assurini (n=27). We analyzed 14 facial measurements obtained from standardized frontal and
profile photographs. The comparison between groups was performed using ANOVA or KruskalWallis test and the sexual dimorphism for each village was analyzed by Student´s t test or MannWhitney at p<0.05.
The homogeneity within and between groups was examined throug the
discriminan analysis. Results: Significant diferences were found among the males and females
indigenous in all villages. Through the discriminant analysis was observed a large intertribal
heterogeneity of face features, at the same time that na intratribal homogeneity was found, mainly
for females individuals. Some morphological characteristics of the face are specific to certain
groups, regardless the ethnicity. Conclusion: Indigenous populations have morphological
characteristics of the face that allow to discriminate each investigated group. These findings gives
support to the role of genetics determining craniofacial growth.
ORTO-P5 ANÁLISE DA SOBREVIVÊNCIA DA COLAGEM E BANDAGEM DE MOLARES EM
PACIENTES ADULTOS - UM ESTUDO RANDOMIZADO EM UMA CLÍNICA DE PÓSGRADUAÇÃO
Autores: Silva VTAA*, Oeiras VJ, Normando ADC.
Analysis of the survival of banding and bonding molar tubes in adult patients - a
randomized study in a clinical postgraduate
Objective: to compare the survival of bonding and banding molar attachements in adult orthodontic
patients. Methodology: The survival analysis was examined through a split-mouth design carried
out on 32 patients, in which one molar was bonded in one side and the contraleral molar was
banded. At the opposite arch the bonded and banded molars were crossed. A total of 59 banded
and 59 bonded molars were followed-up for 12 months. The operators were nineteen students of
Orthodontics course in Brazilian Odontology Association - Pará section. Log Rank survival
analysis (Rosner’s method) was used at P<0.05. Results: Survival of bonded molars was not
statistically different of banded molars (p = 0,97). Bonded upper molars presented a survival of
81,25% while banded upper molars survival was 71,87% (p=0,70). Survival rate was of 66,66%
for banded lower molars and 59,25% for bonded lower molars (p=0,69). Conclusion: in adult
patients, bonded molars present a failure rate similar to banded molars.
Keywords: Banding, bonding, molars, Survival Analysis.
ORTO-P6 AVALIAÇÃO DA INFLUÊNCIA DAS CÁRIES INTERPROXIMAIS EM MOLARES
DECÍDUOS NAS DIMENSÕES DOS ARCOS DENTÁRIOS DE ACORDO COM O DENTE
ENVOLVIDO
Universidade Federal do Pará
Autores: Carvalho TF*, Almeida PT, Almeida SC, Normando, D.
Arch dimensional changes produced by primary molar proximal caries, according to the
tooth decayed.
With the aim of evaluating dimensional arch changes, measured by DE space and diagonal arch
length (DAL), in patients that presented proximal carie on lower or upper primary molar, a sample
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composed by 52 chidreen, 30 (57.7 %) girls and 22 (42.3 %) boys, was selected to this
investigation. Mean age during the arch impression was 7 years and 3 months (3.4 y - 9.8 y).
Every children was in the primary or mixed dentition stage and showed one hemi-arch with
proximal carie (experimental side) and the contralateral arch was carie free (control side). In one
individual both arches were examined, totalizing 53 hemi-arches included in the sample. Student’s
paired t test was used to evaluate the differences between carie hemi-arch and the control side
while Student’s t test for independent samples was used to examine differences between changes
observed in 1st primary molar against 2nd molar and alterations observed on the upper versus
lower arch. Findings showed that there is a significant decrease on the DE space and DAL in the
proximal carie side. No difference was observed if the proximal carie is placed on the 1st or 2nd
primary molars or on the upper or lower arch.
ORTO-P7 AVALIAÇÃO CEFALOMÉTRICA DO ESPAÇO NASO E OROFARINGEO EM
PACIENTES COM OS DIFERENTES TIPOS DE DEGLUTIÇÃO ATÍPICA
Faculdade de Odontologia de Piracicaba – Universidade Estadual de Campinas (FOP-UNICAMP)
Autores: Magnani MBBA*, Vieira PAA, Neto JSP, Siqueira, VCV.
Cephalometric Evaluation of Naso and Oropharyngeal Space in Patients with Different
Types of Atypical Swallowing
Knowing the importance of the upper airway for a normal breath and hence for the skull and face
growth development, it’s important to know how and how much the pharyngeal space grows.
Thus, this study was developed to evaluate the growth of the upper airways through radiographs.
This study aimed to evaluate the growth of the upper airways through radiographs as to verify
whether changes would occur in the pharyngeal space in patients with different atypical
swallowing patterns, which is defined by the position of the tongue in the oral cavity, which may be
high, medium or low. This study involved lateral cranial radiography (45 images: 15 for each type
of atypical deglutition) taken from patients aged 6 to 10 years, both genders. Cephalometrically
was measured in four linear measurements: Pa-Pp and Su-In, order to evaluate the
nasopharyngeal space, and Oa-Op and Ma-Mp, to the oropharynx. After collecting the data, they
were statistically evaluated by means of average values in order to verify possible differences
between different atypical swallowing patterns. By checking the mean values for each variable,
one can see change more expressive of oropharyngeal space in patients with atypical swallowing
low.
Keywords: Cephalometry, oropharynx, nasopharynx, atypical swallowing.
ORTO-P8 AVALIAÇÃO DA CAPACIDADE AUDIOLÓGICA APÓS A EXPANSÃO RÁPIDA
DA MAXILA
Associação Brasileira de Odontologia – Secção Pará
Autores: Xerfan EMF*, Motta CB, Ribeiro SMM, Machado SMM.
Capacity Evaluation Audiologic After Rapid maxillary expansion
Abstract: The present study evaluated the ability audiological after rapid maxillary expansion
appliance with Haas in patients with mouth breathing and maxillary atresia. The audimetric exams
were performed before (T1) and after (T2) the expansion at frequencies 250Hz and 500Hz. It was
noted that the hearing improved after active expansion in a patient mouth breathers, we found a
statistically significant difference, both in the left ear and in the right ear. It found positive and
statistically significant effects on hearing ability after rapid maxillary expansion.
Keys words: audiometry, maxillary expansion, mouth breather.
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ORTO-P9 AVALIAÇÃO DA EFICÁCIA DOS ENXAGUATÓRIOS NA REDUÇÃO DO
BIOFILME CARIOGÊNICO EM PACIENTES ORTODÔNTICOS
Universidade Estadual do Sudoeste da Bahia - UESB
Autores: Sant’Anna LIDA*, Andrade CSS, Baião F, Fidalgo TK, Maia LC, Pithon MM.
Assessment of the effectiveness of mouthwashes in reducing cariogenic biofilm in
orthodontic patients: A systematic review.
Objective: to evaluate the effectiveness of mouthwashes to reduce the cariogenic biofilm in
orthodontic patients. Materials and methods: a systematic literature search was conducted in the
following electronic databases Scopus, PubMed, Web of science, Medline, Embase and
Cochrane, Grey literature and Controlled Trials without limitations of year of publication or
language. We included clinical studies in patients with fixed orthodontic appliances you were using
mouthwashes to reduce the cariogenic biofilm. Articles with systemic drug users, patients of jaw,
in use of shampoo with other purposes eou in use of different hygiene techniques as well as
clinical cases were excluded. After selection by title and abstract, potentially eligible articles were
read in their entirety. The methodological quality and the risk of bias of the articles included were
evaluated according to the characteristic of the study, measurements of the study and statistical
analysis. The methodological quality was classified as high, moderate or low. Results: the survey
identified 2,716 articles, 22 of which met the inclusion criteria. Of these, 8 have analyzed
enxaguantes chlorhexidine base, while article 1 the use of cetilpiridinio, 1 analyzed the rinse aid
with bloodthirsty, 1 using NaF, 2 articles from AmFSnF2, 2 the use of Listerine ®, 1 still analyzed
the association between enxaguantes with octenidina and PVP-I. The articles analyzed 10 were
classified with high and 5 as moderate methodological quality. In the studies reviewed here using
the mouthwash was effective in reducing the cariogenic biofilm in orthodontic patients.
Conclusions: the evidence of the effectiveness of the use of mouthwash in the control cavity
producing biofilm in patients with fixed orthodontic appliances are high. So, Orthodontists may
suggest the use of rinse aid in the oral hygiene of their patients as an adjunct to reduce the
cariogenic biofilm.
ORTO-P10 AVALIAÇÃO LONGITUDINAL DO ESPAÇO POSTERIOR DA DENTIÇÃO EM
CRIANÇAS DE 4 A 8 ANOS POR MEIO DE RADIOGRAFIA CEFALOMÉTRICA
Faculdade de Odontologia de Piracicaba – Universidade Estadual de Campinas (FOP-UNICAMP)
Autores: Pereira Neto JS*, Magnani MBBA, Brancallion K.
Longitudinal evaluation of retromolar space of the dentition in 4-8 year children by
cephalometric radiography.
The aim of this evaluation was to measure longitudinally the retromolar space in lateral
cephalometric radiographs using the method of Merrifield,adapted for the primary dentition in order
to observe the amount of subsequent growth of the lower arch, the space for the first and second
permanent molars and determine sexual dimorphism. A sample of the file area of Orthodontics,
FOP / UNICAMP, which consist of 40 patients, 17 male and 23 female, with characteristics of
normal occlusion between the ages of four to eight years, who underwent annual examinations of
buccal health, occlusion and the integrity of the stomatognathic system, panoramic radiography
and lateral radiograph and examination of models. The results showed that there was an increase
in ramus height of 5.75 mm at 11.75 mm of mandibular body and across the jaw of 11.52 mm.
There was a higher increase for females at 6 and 7 years many of 100.52 mm and 96.88 mm
respectively in the overall growth of the jaw. Based on these results it was concluded that the
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44º Encontro do Grupo Brasileiro de Professores de Ortodontia e Odontopediatria
space for first and second permanent molars is reduced over the years are very similar in females
and males, the growth of the mandible and the mandibular body were positive, slightly larger in
females, the total length of the jaw also had increased over the years, being significantly higher in
females than in males, total length of the jaw also had increased over the years,being significantly
higher in females than in males; in general, females grew larger than the structures studied in
males and greater distance between the molars and the mandible.
ORTO-P11 BRÁQUETES METÁLICOS SOFREM ALTERAÇÕES FÍSICO QUÍMICAS PELA
AÇÃO DE DIFERENTES DENTIFRÍCIOS
Universidade Federal do Pará
Autores: Simas RM*, Almeida LM, Tuji FM, Brandão AMM, Brandão GAM.
Do metal brackets suffer physicochemical changes by the action of different toothpastes?
Objective: To evaluate the in vitro ionic degradation and slot base corrosion of metallic brackets
subjected to brushing with dentifrices, through analysis of chemical composition by Energy
Dispersive Spectroscopy (EDS) and qualitative analysis by Scanning Electron Microscopy
(SEM).Methods: 38 brackets were selected and randomly divided into 4 groups (n = 7). Two
groups (n = 5) worked as positive and negative controls. Simulated orthodontic braces were
assembled using 0.019 x 0.025-in stainless steel wires and elastomeric rings. The groups were
divided according to surface treatment: G1 (Máxima Proteção Anticáries®); G2 (Total 12®); G3
(Sensitive®); G4 (Branqueador®); Positive control (artificial saliva) and Negative control (no
treatment). 28 brushing cycles were performed and evaluations were made before (T0) and after
(T1) experiment. Results: The Wilcoxon test showed no difference of Ti, Cr, Fe and Ni between
groups. G2 presented reduction (p < 0.05) in Al. G3 and G4 presented increase (p < 0.05) in Al.
The SEM analysis showed increased characteristics indicative of corrosion on groups G2, G3 and
G4. Conclusion: The EDS analysis revealed that control groups and G1 did not suffer chemical
change. G2 presented degradation of Al. G3 and G4 suffered increase of Al. The immersion in
artificial saliva and the dentifrice Máxima Proteção Anticáries® did not alter the surface polishing.
The dentifrices Total 12®, Sensitive ® and Branqueador® altered the surface polishing.
ORTO-P12 CARACTERÍSTICAS CRANIOFACIAIS DE PACIENTES COM O TRAÇO E A
ANEMIA FALCIFORME
Universidade Estadual do Sudoeste da Bahia – UESB
Autores: Sant’Anna LIDA*, Andrade CSS, Palmeira LMV, Barbosa AAL, Coqueiro RS, Pithon MM.
Craniofacial Features of Patients with Sickle Cell Anemia and Sickle Cell Trait
Objective: To identify the craniofacial characteristics of patients with sickle cell trait (SCT) and
sickle cell anemia (SCA) and to compare these measurements with normal subjects. Materials and
Methods: patients were evaluated in this study, which were divided into three groups, normal, SCA
and SCT (n=45). Lateral cephalometric radiographs were carried out, that were used to obtain
angular and linear measurements of anatomical structures displayed. All markings and
measurements were performed by a single examiner. Results: The average ANB was increased in
groups with SCA (5.47°) and SCT (3.80°), indicating a tendency to class II. The mean SNA angle
was 83° and 82.1° for SCA and SCT, indicating a proper positioning of the jaw from the skull base.
There was an interaction between the factors group and sex for the variable SN.GoGn, with higher
measures for men in the group SCA. Conclusion: Patients with SCA and ACT exhibit
characteristics of class II skeletal pattern, due to mandibular retrusion. Most patients showed no
compensatory maxillary expansion, which was determined by the normal jaw length and absence
of maxillary protrusion.
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ORTO-P13 CARACTERÍSTICAS OCLUSAIS E FACIAIS EM AMERÍNDIOS: REVISITANDO O
PAPEL DA GENÉTICA E DO MEIO AMBIENTE
Universidade Federal do Pará
Autores: Fagundes NCF*, Souza BS, Bichara LM, Normando ADC.
Occlusal and Facial Features in Amerindians: Revisiting the role of genetics and
environment.
Objective: To analyze facial and occlusal characteristics of three villages from the middle valley of
the Xingu River and compare them with two other villages previously published. The hypothesis of
genetic versus dietary influence on dentition and facial features was tested, through the analysis of
these populations. Methodology: The sample examined was composed of 351 individuals from
villages Arara-Iriri (n=46), Arara-Laranjal (n=130), Assurini (n=87), Pat-krô (n=57) e Pikayaká
(n=31). Prevalence and descriptive differences in the outcomes frequency were compared using
the chi-square test or Fisher’s exact statistic. All the statistics were performed using two-tailed
distribution at p≤ 0.05. Results: We found a striking difference in occlusal patterns and face
morphology between the villages. The prevalence of malocclusion ranged from 66.7% to 33.8%.
The malocclusion was more prevalent in villages Pat-Kro (66.7%), Arara-Iriri (63%) and Assurini
(60.9%), while the normal occlusion was more prevalent in villages Arara-Laranjal (66.2%, p
<0.001). Conclusion: Ameridindias do not present a unique dentofacial pattern, since the
intergroups variability seems to be the rule, even in groups from the same ethnicity. Our findings,
supported in studies in the field of genetics, tooth wear and feeding habits of these populations,
refute the role of the environment as the primary etiological factor of dental malocclusion and facial
morphology discrepancies.
ORTO-P14 CORTICOTOMIA ALVEOLAR SELETIVA NO MECANISMO DE INTRUSÃO DE
MOLARES: ANÁLISE DE PARÂMETROS CLÍNICOS PERIODONTAIS
Universidade Estadual do Sudoeste da Bahia - UESB
Autores: Pithon MM*, Souza MLH, Soares RV, Zenóbio EG, Oliveira DD.
Selective Alveolar Corticotomy In Intrusion Of Molars: Analysis Of Periodontal Clinical
Parameters
Objective: To evaluate the impact of selective alveolar corticotomy associated with orthodontic
intrusion on periodontal clinical parameters of extruded maxillary first molars. Materials and
Methods: 14 individuals with extruded maxillary molars were randomly selected to undergo
corticotomy as coadjuvant therapy for intrusion. Before and after intrusion the following periodontal
clinical parameters were evaluated: Probing depth, periodontal recession, clinical attachment
level, keratinized mucosa strip and gingival margin thickness. In addition, the quantity of intrusion
obtained was measured. The data obtained were statistically analyzed (Wilcoxon or Student’s-t
test for paired samples). Results: after intrusion, a significant increase was observed in palatine
periodontal recession (p = 0.034), significant reduction in vestibular periodontal recession (p =
0.016), and in gain of attachment in the vestibular region (p = 0.041) of the intruded molars. The
remaining clinical parameters evaluated underwent no statistically significant changes (p>0.05). In
addition, intrusion of all the teeth was obtained (mean 2.26 ± 0.52 mm). Conclusions: In the
present study the absence of clinical compromise of the periodontal parameters could be
observed, bearing in mind that the increase in palatine periodontal recession does not lead to loss
of attachment in this region; in addition to reduction in vestibular periodontal recession for gain of
attachment in this region, and obtainment of adequate intrusion in a short period of time.
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ORTO-P15 EFEITO DA TERAPIA MIOFUNCIONAL NAS FUNÇÕES OROFACIAIS APÓS
CIRURGIA ORTOGNÁTICA
Faculdade de Odontologia de Piracicaba – Universidade Estadual de Campinas (FOP-UNICAMP)
Autores: Prado DGA*, Migliorucci RR, Nary Filho H, Gavião MBD, Berretin-Felix G
Effect of myofunctional therapy in the oral functions after orthognathic surgery
Objective: To investigate the effect of miofuncional therapy (MT) in orofacial functions of subjects
undergoing Orthognathic Surgery (OS). Methods: Twenty-two subjects were selected, 14 women
and 8 men, between 18-40 years old, 8 with Class II and 14 Class III skeletal malocclusion. The
subjects were divided into two groups, with MT (n = 12) and without MT (n = 10). The MT started
30 days after OS procedures weekly, totaling 10 sessions. The TM through exercices approched
to improve the sensitivity, tone and mobilitty orofacial thus starndards training of normal
physiological breathing, chewing, swallowing and speaking. After three months of OS orofacial
functions were evaluated by Myofunctional Orofacial Protocol-MBGR, using the scores specified in
the protocol itself: respiration (scores 0-9), chewing (scores 0-10), swallowing (scores 0-50) and
speech (scores 0-32); a higher value means a higher degree of modification. Comparisons
between groups were performed using the Mann-Whitney test (α=0.05). Results: The group
treated with MT showed lower mean scores, in other words, best fit for the functions of breathing
(p = 0.02) and swallowing (p < 0.01). Conclusion: MT improved the functions of breathing and
swallowing for individuals undergoing OS, showing efficacy of speech therapy in these cases.
ORTO-P16 EFEITO DO CLAREAMENTO CASEIRO NA ADESÃO DE BRÁQUETES
ORTODÔNTICOS
Universidade Federal do Pará
Autores: Nascimento GCR*, Miranda CA, Almeida HA, Machado SMM, Loretto SC, Silva CM.
The effect of home bleaching on adhesion of orthodontic brackets
Objective: To evaluate the effect of at-home bleaching on shear bond strength (SBS) of brackets
bonded to enamel at 4 different time intervals after bleaching. Materials and Methods: Ninety
extracted human premolars were randomly divided into 9 groups (n=10) according to the storage
time in artificial saliva (30 minutes, 24 hours, 14 and 21 days) before bonding brackets to bleached
enamel. Control group (unbleached) was stored in artificial saliva for 7 days. At-home bleaching
was performed with 7.5% hydrogen peroxide which was applied to enamel for 1 hour daily for 21
days. Brackets were bonded with conventional adhesive system and SBS testing was performed.
The adhesive remnant index (ARI) was used to assess the amount of resin remaining on enamel
surfaces after debonding. SBS data were subjected to ANOVA and Tukey's test. For the ARI, the
Kruskal Wallis test was performed. Significance for all statistical tests was predetermined to be
p<0.05. Results: The SBS of unbleached group was significantly higher (p<0.05) than bleached
groups (except group bonding 30 minutes after at-home bleaching). Conclusions: The at-home
bleaching decreased shear bond strength (SBS) of brackets to enamel, except for group bonding
30 minutes after bleaching. SBS returned to values close to those of unbleached enamel within 3
weeks following bleaching.
ORTO-P17 ESTUDO DA RELAÇÃO DOS TERCEIROS MOLARES NA DISPOSIÇÃO
ÂNTERO-POSTERIOR DA MAXILA
Autores: Rabello MN*, Costa CM, Santos OR e Mattos RJN.
Study of the relationship of the parties in provision molars anteroposterior maxilla
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The literature has not reported any mention of any influence of the third molars on the growth of
the jaw, especially in their willingness anteroposterior . The tooth is formed and erupction an
important site of growth maxillary tuberosity , whose main mechanism involves bone apposition .
Research is needed to understand the influence of agenesis of third molars and maxillary sagittal
dimension. Objective: To evaluate the relationship of agenesis of the third molar in dentofacial
morphology through standardized lateral cephalometric study. Materials and methods: A total of
80 lateral cephalometric radiographs, belonging to the initial orthodontic records of individuals of
both genders , files private clinics and specialized course in Orthodontics ABO - PA . The sample
ranged from 14 to 26 years, comprising 20 men and 20 women, divided into two groups: those
with agenesis and those with control. The cephalograms were scanned in scanner Microtek
ScanMaker 8700 . The reading measures was obtained through the computerized program
Radiocef 2 . The static test was used to test “t" test at the 5% level of reliability. Results: No
statistically significant differences demonstrated, indicating that the third molar agenesis not
influence the sagittal relationship of maxilla and mandible Conclusion : Agenesis of the third molar
has no relation to dentofacial morphology.
ORTO-P18 FATORES RELACIONADOS À DURAÇÃO DO TRATAMENTO ORTODÔNTICO
EM PACIENTES ADULTOS
Associação Brasileira de Odontologia – Seção Pará
Autores: Melo ACEO*, Carneiro LOT, Mattos JNR, Normando, ADC, Cecim, RL, Pontes, LF.
Factors related to orthodontic treatment time in adult patients
Orthodontic treatment of adult patients has a great variability in the time required for its
completion. Objective and methods: In order to evaluate factors influencing the duration of
treatment in adults, were examined 70 clinical cases with class I or II malocclusion, obtained from
the initial examination of 4700 records, collected in three experienced orthodontists clinics. The
influence of the variables collected in the documentation of patients on treatment time - dependent
variable, was assessed by multiple linear regression analysis, followed by the stepwise method at
p <0.05. Results: The number of months without being accompanied by faults (R2 = 14.4%, P =
0.0037) and the number of appliance breakages (R2 29.71%, p = 0.0001) had a significant
influence on the variation of treatment time. Other factors, such as initial canine relationship, the
use of metal or ceramic brackets, orthodontic extractions included in the planning, age at start of
treatment, the PAR index at the beginning of treatment, the patient's sex and facial pattern had no
significant influence on treatment time (p> 0.05). The analysis of all factors allowed the prediction
of only 54.33% of the variation in treatment time. Conclusion: We conclude, therefore, that the
duration of orthodontic treatment in adults, when performed by experienced orthodontists, is
mainly influenced by factors associated with the patient’s collaboration. However, several factors
not included in this study may contribute to variation in the duration of orthodontic treatment.
ORTO-P19 GERENCIAMENTO DA MORDIDA CRUZADA POSTERIOR ASSOCIADA À
MORDIDA ABERTA ANTERIOR NA CLINICA INFANTIL
Universidade Federal do Pará
Autores: Batista Junior ES*, Santos EM, Brandão GAM, , Brandão AMM.
Management of posterior cross-bite associated to anterior open bite in children
The aim of this work is to demonstrate the management performance of orthodontic problems in
children, assisted by children's dentistry clinic of Federal Univeristy of Pará through 2 cases of
posterior crossbite associated with anterior open bite treated by undergraduate students, focused
on the diagnosis and recommended treatment, to promote health holistically. Patient 1 was an 8-
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44º Encontro do Grupo Brasileiro de Professores de Ortodontia e Odontopediatria
year old girl, straight profile on facial analysis, class I dental relationship, posterior crossbite
associated with anterior open bite and persistent thumb sucking habit. Patient 1 was an 9-year old
boy, straight profile on facial analysis, class I dental relationship, posterior crossbite associated
with anterior open bite, atresic maxilla, upper and lower dental crowding, early loss of deciduous
teeth (74, 75, 84, 85). Occlusal deviations were treated using a modified Quadhelix expander
combined with a welded palatal grid. Analyzing the results obtained from the interceptive
orthodontic treatment can be concluded that the modified Quadhelix expander is efficient for this
type of malocclusion treatment.
ORTO-P20 GERENCIAMENTO DE MORDIDAS CRUZADAS ANTERIORES NA CLINICA
INFANTIL
Universidade Federal do Pará
Autores: Monteiro ARBM *, Brandão GAM, Batista Junior ES, Brandão AMM
Management of Anterior cross-bites in children
The aim of this work is to demonstrate the management performance of orthodontic problems in
children, assisted by children's dentistry clinic of Federal Univeristy of Pará through 2 cases of
anterior crossbite treated by undergraduate students, focused on the diagnosis and recommended
treatment, to promote health holistically. Patient 1 was a 9-year old boy, straight profile on facial
analysis, intermediate period of the mixed dentition, class I dental relationship, dental crowding,
anterior crossbite, (11) gingival recession (41). The occlusal deviation was treated using a
removable Hawley appliance with springs, in 90 days. Patient 2, was 6-year old boy, first
transitional period of mixed dentition, anterior crossbite, high inclination of the lower incisors,
atypical deglutition and low tongue posture. A progenic appliance was indicated to treat this
condition. Analyzing the results obtained from the interceptive orthodontic treatment can be
concluded that the appliances used are efficient for these types of malocclusion treatment and can
be used in early treatments.
ORTO-P21 INTERVENÇÃO PRECOCE NA MORDIDA CRUZADA ANTERIOR UNITÁRIA
Centro Universitário do Estado do Pará (CESUPA)
Autores: Cardoso PC*, Novaes AG, Soares AM, Ribeiro AP, Dyllon CO, Torres JC, Ribeiro SM.
The anterior dental crossbite is defined as a malocclusion, resultant of a lingual position of the
upper anterior teeth relative to lower. The objective of this work is to report a clinical case of
unitary anterior crossbite in 3 years old patient, in which was used an inclined plan to early
intervention and bite correction. It emphasize the importance of the study of etiological factors,
allowing professionals to act with the possibility of preventing a certain irregularity, outlining their
treatment prognosis and the stability of correction. Early treatment prevents future dentoalveolar’s
complications, and fixed appliances are preferred because they are independent of patient
compliance to, treatment, and among them, the inclined plane has proven clinically effective, as
demonstrated in this case report.
ORTO-P22 MANCHAMENTO “IN VIVO” DAS LIGADURAS ESTÉTICAS ORTODÔNTICAS
Autores: Pontes LF*, Kawabata E, Dantas VL, Kato C, Normando D.
In Vivo Color Change of Orthodontic Esthetic Ligatures
Aim:To evaluate the in vivo color change of esthetic elastomers of four trademark. Material and
Methods: The brands Morelli, GAC, 3M Unitek and American Orthodontics were assessed in 20
adult patients. The elastomers were evaluated by patient and orthodontist, on the day of
installation and 30 days after exposition in the oral environment. A scoring staining system was
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44º Encontro do Grupo Brasileiro de Professores de Ortodontia e Odontopediatria
compared by Friedman test at the level of p<0.05. Results: there was a significant difference in the
evaluation of the elastomers pigmentation, after exposition to the oral cavity in all of the brands
examined. Morelli elastomers showed the highest degree of staining, with median reaching the
maximum value (3), while the other brands median were 1.0 (p<0.01). It was noticed a great
individual variability in the degree of staining for all brands. Orthodontists and patients reported
similar scores of staining. Conclusion: Analysis of the four commercial brands of esthetic
elastomers investigated showed an unpleasant staining perceived similarly by laypersons and
orthodontists to all brands investigated.The staining was more pronunced for Morelli elastomers.
ORTO-P23 MEMBRANA DE POLIPROPILENO PARA PRESERVAÇÃO DE REBORDO
ALVEOLAR NOS CASOS DE EXTRAÇÕES DENTÁRIAS EM ORTODONTIA
Associação Brasileira de Odontologia (Seção-Pará)
Autores: Maestri FP*, Salomão M.
Polypropylene membrane for alveolar ridge preservation in cases of dental extractions in
orthodontics: case report
Techniques and maneuvers for alveolar ridge preservation after tooth extraction become more
common in dentistry in orthodontic treatment with extractions especially in patients with bone and
gingival unfavorable characteristics, preserve tissue can determine aesthetic conditions favorable
for orthodontic treatment. In this context the polypropylene membrane for preservation of alveolar
ridge, developed in Brazil, presents advantages over particulate bone grafts and / or collagen
membranes as reduced cost, simple surgical technique may be exposed in the oral environment.
In the presented case the patient was referred to the orthodontist for teeth removal 14 (I premolar
right) and 24 (I left premolar). The removal was done with the least possible trauma polypropylene
membrane was placed on the socket 2 mm by 2 mm by buccal and palatal suture held in the flaps
without perforating the membrane. After 7 days the suture and the membrane were removed and
the patient was referred to the orthodontist to continue orthodontic movement. Preserving
vertically and horizontally alveolar ridge provides more favorable conditions for orthodontic
movement, thus it becomes important to know the orthodontist techniques and resources for this
purpose, and the polypropylene membrane with all its advantages a great alternative.
ORTO-P24 OCLUSÃO NORMAL E MÁ OCLUSÃO EM ESCOLARES COM DEFICIÊNCIA
AUDITIVA
Universidade Federal Do Pará
Autores: Gotardo PL *, Brandão GAM, Batista Junior ES, Brandão AMM.
Normal Occlusion and malocclusion in hearing schoolchildren
The aim of this study was to evaluate the prevalence of normal occlusion and malocclusion in
school children with hearing. 84 boys and girls 7-10 year old were examined in a school designed
to treat people with this deficiency. Results: 94.08% of schoolchildren showed any kind of
malocclusion. The sagittal relationship prevalence was: 59.5% class II; 29,8% class I; 10.7% class
III. Overjet was normal in 34.5% of the sample; 52.4% increased and 9.5% had top occlusion.
Overbite was normal in 23.3% of the sample; increased in 57.1% and and on top 9.5%.
Transversal analysis showed 41.7% with normal arches, 51.2% with atresia, 3.6% unilateral
functional crossbite, 2.4% with true unilateral crossbite and 1.4% with dental crossbite. The
presence of diastema was 23.8% and 54.8% dental crowding. Conclusion: students with hearing
impairment assessed had a high prevalence of malocclusion.
ORTO-P25 ORTODONTIA LINGUAL: RELATO DE CASO CLÍNICO
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Faculdade de Odontologia da Universidade de São Paulo
Autores: Gabarrone LR*, Robles-Ruiz JJ, Kanashiro LK.
Lingual Orthodontics: Case report
Objective: To describe a case of lingual orthodontics and compare results of the final leveling
phase with those planned at setup model before the beginning of the treatment. Description of
clinical case: The patient characteristics were: permanent dentition, mesofacial biotype, Class I
malocclusion, moderate crowding, tooth # 12 crossbite, mandibular incisors mildly tipped buccally
and soft tissue harmony. The treatment plan included interproximal reduction to align teeth and
avoid buccal tipping, so as to prevent any possible negative effect on soft tissue harmony. Plaster
models were obtained, and the setup was built manually to evaluate whether planning was
adequate. After plan confirmation, indirect bonding and customization of the brackets were
prepared on the setup model. The first phase of the treatment comprised interproximal teeth
reduction and leveling with individualized arch wires, both according to planned setup model.
When the leveling phase was completed, dental results were compared with the ideal setup model
by intermolar and intercanine distances, overbite, overjet, arch depth and occlusion analysis.
Conclusions: Teeth position and occlusion at the end of leveling phase were similar to those
planned at setup model, which suggests that this may be a useful tool for planning, indirect
bonding and customization of both brackets and leveling arch wire in cases of lingual orthodontics.
ORTO-P26 PERCEPÇÃO ESTÉTICA DE ESPAÇOS NEGROS ENTRE INCISIVOS
SUPERIORES POR INDIVÍDUOS DE DIFERENTES FAIXAS ETÁRIAS
Universidade Estadual do Sudoeste da Bahia – UESB
Autores: Andrade CSS*, Sant’Anna LIDA, Barretto JR, Rocha JO, Brasil RVG,Weberling LB,
Paixão JVB, Coqueiro RS, Pithon MM.
Esthetic perception of black spaces between maxillary central incisors by individuals of
different age groups
Objective: To evaluate the degree of perception of laypersons of different age groups with respect
to smile esthetics in cases involving black spaces between maxillary incisors. Materials and
Methods: Changes were made in a photograph of a smiling female patient, simulating various
configurations of black spaces between maxillary incisors. For this purpose an image manipulation
Photoshop CS3 was used. For evaluation black spaces of 0.5, 1.0, 1.5, 2.0, and 2.5 mm in size
were created. After digital manipulation, the photographs were printed on photographic paper,
attached to a questionnaire, and distributed among laypersons in the age groups of 15-19; 35-44,
and 65-74. To evaluate the degree of esthetics, a scale of attractiveness was used, in which a
score of 0 would represent ''hardly attractive'', 5 ''attractive'' and 10 ''very attractive''. Results:
Results showed that the photographs without black space and with black space of 2.5 mm were
scored as the most and least attractive, respectively, by all the age groups. The degree of
perception of black spaces between maxillary incisors gradually diminished as the age of the
groups increased (p<0.05). Conclusions: Black spaces have a negative repercussion on smile
esthetics. The larger the black space, the less attractive the smile.
ORTO-P27 PERFIL ATUAL DO ENSINO DA DISCIPLINA DE ORTODONTIA NA CLINICA
ODONTOLOGICA INFANTIL DA UFPA
Universidade Federal Do Pará
Autores: Brandão AMM*, Brandão GAM, Blagitz MN, Sinimbú CMB, Flório FM.
This study aimed to assess the current graduate teaching profile of Orthodontics at Faculty of
Dentistry UFPa. The retrospective study analyzed records of 446 treated patients at the dental
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clinic in the period 2003-2011. The role of orthodontics clinical practices observes three semesters
treating 7-10 year old children at deciduous and mixed dentition. Results: The prevalence of
occlusal disharmony treated was: early loss of deciduous teeth (30%); removal of sucking habits
(6%); anterior open bite (14%); posterior crossbite (10%); dental crowding (40%). Actions of
orthodontic problems management by preventive and interceptive procedures are developed. The
fixed and removable appliances best suited to treat the cases evaluated were: Hawley arch and
variations; space maintainers’, lingual arch; lip-bumper, transpalatal arch, palatal grid, Quadhelix
and porter expanders. Conclusion: The results of treated cases show the efficiency of the
protocols adopted showing the feasibility of preventive and interceptive orthodontics teaching at
the undergraduate course contributing to the expansion student’s knowledge in the specialty.
ORTO-P28 REABILITAÇÃO ESTÉTICO-FUNCIONAL DE PACIENTE COM AGENESIA: UMA
ABORDAGEM INTEGRADA ODONTOPEDIATRIA-ORTODONTIA
Faculdade de Odontologia de Piracicaba – Universidade Estadual de Campinas (FOP-UNICAMP)
Autores: Joaquim NM*, Iwamoto AS, Inagaki LT, Puppin-Rontani RM, Pascon FM, Pereira-Neto
JS.
Aesthetic and functional rehabilitation of a patient with agenesis: an integrated approach to
pediatric-orthodontic dentistry.
Aesthetic and functional rehabilitation of a patient with agenesis: an integrated approach to
pediatric-orthodontic dentistry Agenesis is a developmental anomaly characterized by absence of
one or more dental germs. This study aimed to report the clinical case of a patient who sought
treatment at the Piracicaba Dental School, to 11 years and 2 months old, reporting "missing teeth".
After history and clinical examination revealed the presence of teeth 16, 55, 53, 11, 21 ,63, 64, 65,
36, 75, 74, 73, 32, 71, 81, 42, 83, 84, 85 and 46. Radiographic examination was diagnosed
agenesis of the teeth 18, 17, 14, 13, 12, 22, 23, 25, 27, 28, 38, 37, 35, 31, 41, 47 and 48. Initial
treatment proposed consisted for bonding orthodontic brackets on teeth 11 and 21 to closing
sharp diastema, being also adapted a NiTi helix spring to incisors teeth verticalization (11/21). In
the following session, a orthodontic round caliber 0.018" was adapted and the spring was
removed. After space closure, the brackets were removed and a upper removable device was
adapted with a palatal expander and teeth stock - functional and aesthetic space maintainer. The
patient is in a preservation phase for subsequent exchange of removable appliance until the
proper time for corrective treatment (orthodontic/implant/dentistry). In conclusion, this case was
considered successful in pediatric-orthodontic dentistry integrated treatment because it allowed
the restoration aesthetic- functional patient, improving self-esteem just preparing dental arches for
future rehabilitation.
ORTO-P29 TRACIONAMENTO ORTODÔNTICO DE INCISIVOS CENTRAIS SUPERIORES
IMPACTADOS: RELATO DE CASO CLÍNICO
Universidade Federal do Pará
Autores: Horta MFF, Almeida HÁ, Pinheiro JJV, Horta JV, Barbosa ML, Magno MB.
Orthodontic traction of Impacted Upper Central Incisors: Case Report.
The impaction of permanent teeth is highly prevalent in our population. Its etiology is associated
with general and local factors. The eruption of these teeth there are consequences when occlusion
and involves anterior teeth also causes great disfigurement, which end up being related to
psychological problems such as low self-esteem. Among the etiologic factors include: changes
embryological development of the tooth germ; pathologies such as supernumerary teeth and
odontoma; mechanical factors, such as lack of space and alkalosis , chewing less intense and
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traumas . In these cases, early diagnosis and appropriate treatment are important for better
resolution of the problem from the point of view of functional and aesthetic. Orthodontics
associated with surgical procedures has achieved satisfactory results in the treatment of impacted
teeth . The purpose of this study is to report the case of a nine year old with two incisors withheld
because of odontoma in the anterior -superior maxilla . We conducted rapid maxillary expansion ,
with subsequent surgical procedure for exposure and traction of impacted teeth , through the
technique of collage button associated with a palatal bar modified for traction and fixed orthodontic
appliance.
ORTO-P30 TRATAMENTO DE UM CASO COMPLEXO DE MORDIDA ABERTA ANTERIOR
ASSOCIADA À MORDIDA CRUZADA POSTERIOR EM PACIENTE ADULTO
Universidade Federal Do Pará
Autores: Batista Junior ES*, Brandão GAM, Almeida H A, Brandão AMM.
Complex treatment of anterior open bite associated to posterior cross bite in adult patient:
Clinical case.
The objective of this paper is to present a complex case of open bite associated with posterior
crossbite in an adult patient. 43 year old womem sought Posgraduate in Orthodontics Dentisty
Clinic at Federal University of Pará with the complaint “spacing between teeth, pain and fatigue at
chewing”. At clinical examination showed straight profile at facial analisys, passive lip seal, class I
malocclusion, posterior crossbite, anterior open bite, atypical deglutition, positive inclination of the
lower incisor, diastema. Compensatory orthodontic treatment without extractions include,
QuadHelix for expansion, transpalatal arch for intrusion, inferior lingual arch for torque control,
lingual spurs on inferior incisors, and orthodontic elastics. The clinical case was finalized in 36
months. The applied mechanics was effective in correcting severe malocclusion ensuring an
satisfactory occlusal outcome.
ORTO-P31 TRATAMENTO INTEGRADO ENTRE ODONTOLOGIA E FONOAUDIOLOGIA EM
CASO CLÍNICO DE MÁ OCLUSÃO
Faculdade de Odontologia de Piracicaba – Universidade Estadual de Campinas (FOP-UNICAMP)
Autores: Prado DGA*; Lopes LM; Nobre-dos-Santos M; Pascon FM; Gavião MBD
Integrated treatment between dentistry and speech therapist in a clinical case of
malocclusion
Objective: To describe the integrated dental treatment and speech therapy of a child presenting
occlusal and functional alterations. Case Description: Patient YLC, female, 5-year-old, sought
treatment because of diastema attributed to labial frenulum. On clinical examination, there was
absence of ischemia of the incisive papilla, 6 mm of diastema, open bite, tongue interposition and
left posterior cross bite. It was observed in radiographic images advanced rizolisis of 51/61 teeth
and favorable positioning of the 11/21. Orofacial functions, tone, mobility and posture of the
phonetic-articulators structures were evaluated following the Protocol Myofunctional Orofacial
MBGR. It was found decreased tone tongue, deviation in mouth closing, speech, chewing and
swallowing alteration. Treatment plan: Removable palatal expander and diastema monitoring. The
cross bite was corrected after six months, but in clenching the patient presented right deviation,
interfering with mastication. Speech therapy was instituted. Isotonic exercises was applied to
correct the mouth opening and closing standard, isometric exercises to adjust the tone of
language, strategies for awareness tongue posture, and appropriate exercises for speech,
mastication and swallowing. After two months there was improvement in those aspects.
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Conclusion: The integrated care for the child promoted the reestablishment of occlusion and
appropriate oral functions.
ORTO-P32 VERTICALIZAÇÃO DE SEGUNDOS MOLARES INFERIORES COM AUXÍLIO DE
MINI-IMPLANTES PARA REABILITAÇÃO PROTÉTICA: RELATO DE CASO CLÍNICO
Faculdade de Odontologia da Universidade de São Paulo
.
Autores: Azevedo IL*, Abrão AF, Abrão J.
Uprighting second molars with the aid of mini-implants for prosthetic rehabilitation: Case
report
The objective of this work was to evaluate the movement of molar uprighting in adult patient with
help of mini-implants for anchoring. The patient required prosthetic space recovery for installation
of implants on tooth 45, 46 and 36. The treatment plan was dental extraction of the tooth 48,
followed by installation of mini-implants in the region of the retromolar trigone and uprighting
bilateral 37 and 47. The activation occurred every 15 days and the force employed was of 150 g.
After seven months, occurred the uprighting of 37 and 47 teeth and these were stabilized by a
metal strap wire docked at mini-implant until the respective buttons of the bands. It was concluded
that the uprighting of molar with the methodology described provided a faster and more efficient
orthodontic treatment and can reestablish enough space for prosthetic rehabilitation.
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