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Prevention of Oral Disease – 2 Dr Omar Alkaradsheh Reference Prevention of Oral Disease Murray, Nunn, Steele 4th Edition 2003 Aims and Objectives of Course knowledge and confidence to incorporate the theories of prevention into patient care and treatment planning Use of evidence-based practices in prevention of oral diseases Identifying different risk groups to give patients the best care possible Course Outline Prevention of Periodontal Disease Prevention of Tooth Wear - Erosion Prevention of Dental Trauma Prevention of Oral Mucosal Diseases Prevention in the Ageing Dentition Preventing an Impairment Preventing Non-Accidental Injury Introduction to Dental Public Health Prevention of Periodontal Disease – 1 Mechanical Plaque Control Dr. Omar Alkaradsheh Aims 1. 2. 3. Aetiology Implications and importance of preventing periodontal disease Preventive methods Mechanical plaque removal Chemical plaque removal Periodontal Disease Group of infections that affect the supporting structures of the teeth Gingivitis – inflammation restricted to the gingival marginal Periodontitis – resorption of the supporting connective tissue attachment and apical migration of the junctional epithelia What causes Periodontal Disease? DENTAL PLAQUE Non mineralized, bacterial aggregation on the teeth and other solid structures in the mouth bacterial cells (70%) protein extracellular polysaccharides epithelial cells white blood cells Dental Calculus? Result of mineralization within plaque (70-90% inorganic content) Not in itself causative of periodontal disease provides a rough PLAQUE retaining surface distorts the gingival crevice and increases stagnation areas – allows greater bacterial proliferation within the crevice Factors affecting PD 1. Local factors 2. Host factors Local factors that increase plaque accumulation Iatrogenic Rough surfaces Overhanging restorations Removable partial dentures Fixed orthodontic appliances Space maintainers (band and loop, etc.) Host Factors modifying the immune response 1. Smoking Periodontitis is 2 – 5 times more severe amongst smokers compared to non-smokers 2. Nicotine Diabetes (type 1 and 2) 2 - 3 fold increase risk of periodontitis related to degree of diabetic control, presence of complications and duration of the syndrome Aims Aetiology Implications and importance of prevention Preventive methods Mechanical plaque removal Chemical plaque removal Implications for prevention Chronic gingivitis is reversible if effective plaque control is introduced GINGIVITIS and PERIODONTITIS can be prevented by adequate plaque control Preventive strategy should be customized for each individual – variation in susceptibility Why prevention is important? 1. Gingivitis is common in both children and adults Children - 26%- 63% (UK Children Dental Health Survey, 1993) Adults – almost 100% 1 mm attachment/bone loss Prevalence and severity of PD increases with age Why prevention is important (cont) 2. Important cause of tooth loss Scotland - 55% caries 17% PD 3. Time-consuming and difficult to treat 4. Potential source of systemic bacteraemia Infective Endocarditis, coronary heart disease Stroke Low-birth weight preterm infants Diabetes Aims Aetiology Importance of preventing periodontal disease Preventive methods Mechanical plaque removal Chemical plaque removal Mechanical Plaque Control Mechanical Plaque Control Self Care Toothbrushing Interdental cleaning Professional Scaling/Root planing Polishing Toothbrushes The first true bristled brush was invented in China in 1498 for the Emperor using animal hair (pigs) By the early 1800’s bristled brushes were in general use Nylon bristles were introduced around 1938 1960’s – development of power toothbrushes (electric) Requirements of a Satisfactory Toothbrush 1. 2. 3. 4. Have good cleaning ability Cause minimal damage to soft and hard dental tissues Having a reasonable lifespan (good wear characteristics) Non-toxic Manual toothbrushes Handle size appropriate to the user’s age and dexterity Head size appropriate for the user’s mouth Adult – 2.5 cm Child – 1.5 cm Compact arrangement of soft, end rounded nylon filaments not larger than 0.009 inches in diameter Hard brushes should never be recommended lacerate the gingiva, gingival recession and tooth abrasion Diameter is too large to enter the gingival crevice Bristle patterns that enhance plaque removal in approximal spaces and along gum margin Filaments arranged at different heights and angles significantly more effective at reducing plaque and gingivitis than flat trim brushes (Balanyk et al., 1993) Requirements of a Satisfactory Brushing Technique 1. 2. 3. 4. Technique should clean all tooth surfaces, especially interdental and gingival crevice Movement of the brush should not injure the soft or hard tissues Simple and easy to learn Well-organized so that each part of the dentition is brushed in turn and no area overlooked Brushing Techniques 1. Vertical 2. Horizontal 3. Roll Technique 4. Vibrating (Bass, Stillman, Charter) 5. Circular 6. Scrub Brushing Technique Bass technique most recommended by dentists Brushing Technique 4. Bass technique aims to clean the gingival crevice brush held at 45° to the axis of the teeth so that the end pointing into the gingival crevice Brushing Techniques Research shows no particular method superior to any other Modify the patients method Emphasize need to repeat the procedure on all tooth surfaces Powered toothbrushes Oscillating, rotating or counter-rotational movements Oscillating/rotating (Braun Oral B) more effective in removing plaque and reducing gingivitis than a manual toothbrush (2003) Ultrasonic toothbrushes (Sonicare) high frequency vibration (30,000 – 40,000 brush strokes/min) Two mechanisms of actions 1. Conventional - scrubbing effect 2. Vibratory motion – impact energy to oral fluid that surround the teeth – fluid pressure and shear forces Which toothbrush????? Manual vs. Electric Which electric??? ?????? Manual vs. Electric Electric toothbrushes remove more plaque than manual toothbrushes Electric toothbrush is recommended for individuals who are unable to maintain effective plaque control Physical or learning disability Fixed orthodontic appliances Institutionalized patients depend upon care providers A manual toothbrush is appropriate for most people Which electric toothbrush? Oscillating/rotating (Braun Oral B) performs better than Ultrasonic (Sonicare) (Strate et al., 2005) Brushing in Children Start brushing as soon as the first tooth erupts Preschool children need help with brushing Frequency and duration of brushing Effective plaque removal every second day has been shown to prevent gingivitis (Lang et al., 1973) Twice daily brushing is consistent with maintaining good gingival health 2 - 3 minute duration is recommended Replacing toothbrush Splaying of the toothbrush is the most obvious sign of toothbrush wear Renewal is usually recommended after 3 months use Interproximal Cleaning Periodontal conditions are worst in interdental areas Plaque Removal Interproximal cleaners 1. Dental floss 2. Interspace brush 3. Interdental brush 4. Wood points (toothpicks) 5. Irrigation devices Dental Floss 1. Waxed/Unwaxed 2. Tape 3. Superfloss 4. Flosette Dental Floss 1. Waxed/Unwaxed 2. Tape 3. Superfloss 4. Flosette Flossing technique?? Dental Floss 1. Waxed/ Unwaxed 2. Tape 3. Superfloss 4. Flosette Dental Floss 1. Waxed/Unwaxed 2. Tape 3. Superfloss 4. Flosette Toothpicks Effective only when sufficient interdental space is available Triangular toothpicks are superior to round or rectangular Incorrect use may cause gingival lesions Interspace Brush Used for tipped, rotated or displaced teeth, teeth with gingival recession Limited value except for surfaces adjacent to an extraction space Interdental brush Superior to floss for cleaning open spaces May be used for cleaning around fixed orthodontic appliances Irrigation Devices A steady or pulsating stream of water through a nozzle under pressure Eliminate food residue accumulated interdentally Irrigation Device (cont.) NOT A SUBSTITUTE FOR BRUSHING Time-consuming and messy Used to deliver chemical agents to the oral cavity Mechanical Plaque Control Self Care Toothbrushing Interdental cleaning Professional Scaling/Root planing Polishing Scaling and Root Planing Scaling sufficient to remove plaque and calculus from enamel leaving a smooth clean surface Root surfaces - Root planing calculus may be embedded in cemental irregularities Contamination of toxic substances in cementum – biologically unacceptable to gingival tissue Recall intervals Aim 1. Prevent recurrence and progression of PD 2. Prevent tooth loss 3. Increase probability of diagnosing and treating in a timely manner other oral disease 1. Reinforcement of oral hygiene instruction 2. Supragingival scaling or root planing as necessary Frequency? 3 month recall is favoured by most clinical trials Professional Cleaning - Polishing Polishing enamel – reorientation of surface crystals to create a smoother surface Experimental studies shown polishing inhibits formation of pellicle, plaque and calculus No evidence that periodontal health improves Removal of fluoride from superficial layers of enamel is a significant drawback Mechanical plaque control in special needs patients Mental disability Physical disability toothbrush handles enlarged using soft rubber balls to give improved hand grip people who would otherwise require assistance with toothbrushing modified handle (using silicone putty) for ease of grip TePe interdental brush showing handle for easy holding Boy with Asperger’s syndrome using a largehandled electric toothbrush Toothpaste pump and dispenser person with a disability such that they can no longer perform this task Aims 1. 2. 3. Aetiology Implications and importance of preventing periodontal disease Preventive methods Mechanical plaque removal Chemical plaque removal Conclusion Mechanical plaque removal is the backbone of periodontal disease prevention Thank you