Download A New Method to retain the Posterior Bite Blocks for Anterior

JIOS
Clinical Innovation
A New Method to Retain the Posterior Bite Blocks
for Anterior Crossbite Correction
10.5005/jp-journals-10021-1233
A New Method to retain the Posterior Bite Blocks for
Anterior Crossbite Correction
1
Nabeel Ahmad, 2Akram Ansari, 3Anil Gera, 4Gurmeet Kaur
ABSTRACT
Anterior dental crossbite is a common problem in which maxillary
anterior teeth are locked behind the mandibular anteriors.
Orthodontic treatment of anterior teeth crossbite need unlocking
of upper anterior teeth. Several methods are used to raise the
bite for anterior teeth crossbite correction. Posterior acrylic bite
blocks are commonly used to raise the bite. Here, in this article,
a new method is described to retain the posterior bite block for
anterior crossbite correction.
Keywords: Anterior dental crossbite, Orthodontic treatment,
Posterior acrylic bite blocks.
How to cite this article: Ahmad N, Ansari A, Gera A, Kaur G.
A New Method to retain the Posterior Bite Blocks for Anterior
Crossbite Correction. J Ind Orthod Soc 2014;48(2):139-140.
Source of support: Nil
Fig. 1: Sixteen gauge needle
Conflict of interest: None
Received on: 5/1/13
Accepted after Revision: 3/6/13
Introduction
Traditionally, acrylic bite blocks on the occlusal surface
of teeth are used to raise the bite for correction of anterior
crossbite.1,2 Later on, these were cemented with glass ionomer
cement (GIC). Most of the time patient reports before the
pres­cribed appointment with loose biteblocks and debonded
brackets, thus delaying the treatment. Another method used
most frequently in the clinics is using GIC blocks on molars,
which get chipped off causing a failure to achieve desired
results.
Technique
Fig. 2: Marking the tube length
A new technique of fabricating an acrylic bite block with
stainless steel tubes (16-gauge needle, Fig. 1) incorporated
into the blocks is presented. The following is a simple method
of fabrication of bite blocks:
1,2
Senior Lecturer, 3Professor and Head, 4Professor
1-3
Department of Orthodontics, Teerthanker Mahaveer Dental
College and Research Centre, Moradabad, Uttar Pradesh, India
4
Department of Orthodontics, Saraswati Dental College
Lucknow, Uttar Pradesh, India
Corresponding Author: Nabeel Ahmad, Senior Lecturer
Department of Orthodontics, Teerthanker Mahaveer Dental
College and Research Centre, Moradabad, Uttar Pradesh, India
e-mail: [email protected]
The Journal of Indian Orthodontic Society, April-June 2014;48(2):139-140
Fig. 3: Bite block with ligature wire
139
Nabeel Ahmad et al
Fig. 4: Intraoral frontal view
Fig. 5: Intraoral occlusal view
Fig. 6: Intraoral right lateral view
Fig. 7: Intraoral left lateral view
1. Make an impression of the mandibular arch and prepare
the working cast. Apply separating medium on it. Sprin­
kle self-cure acrylic powder and liquid on it and make a
bite block (half of the desired thickness).
2. Now place the measured length (Fig. 2) of the hollow
stainless steel tubes over the bite block.
• Above the contact area of second premolar and first
molar.
• Above the contact area of first and second molars.
3. Continue the acrylization of the bite block to desired
thick­ness taking care that acrylic does not flow inside
the tube.
4. Remove the bite blocks from the working cast. After
finishing and polishing the appliance cement it with GIC
(Fig. 3).
5. Now pass the twisted ligature wires (double thickness of
0.010” stainless steel ligature wire or brass wire) through
the hollow tubes. Pass the lingual ends of ligature wires
140
below the contact areas and tie it with the buccal ends
of the ligature wires (Figs 4 to 7).
Conclusion
This technique has been found to be reliable and convenient,
especially since it avoids the loosening of the bite block
before patient’s visit and keeps the bite open as desired.
Moreover, the bite block can be given unilaterally without
any chance of swallowing it, because it is tied with the help
of ligature/brass wire. Patient compliance with the appliance
is also found to be excellent.
References
1. Vadiakas G, Viazis AD. Anterior crossbite correction in the
early deciduous dentition. Am J Orthod Dentofacial Orthop
1992;102:160-162.
2. Kiyak HA. Patients’ and parents’ expectations from early
treatment. Am J Orthod Dentofacial Orthop 2006;129:S50-54.