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Evaluation of Dentoalveolar Compensation in the Treatment of Class III Malocclusion
Guilherme Janson1*, José Eduardo Prado de Souza1, Roberto Bombonatti1, Mariana Pracucio Gigliotti1 and Pedro Andrade Júnior21Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
2Private practice, São Paulo, Brazil
- Corresponding Author:
- ADr. Guilherme Janson, D.D.S., M.Sc., Ph.D., M.R.C.D.C
(Member of the Royal College of Dentists of Canada) Professor
Department of Orthodontics. Bauru Dental School
University of São Paulo-17012-901, Brazil
Tel: 55 14 32344480
E-mail: jansong@travelnet.com.br
Received date September 11, 2014; Accepted date October 15, 2014; Published date October 20, 2014
Citation: Janson G, Souza JEPD, Bombonatti R, Gigliotti MP, Júnior PA (2014) Evaluation of Dentoalveolar Compensation in the Treatment of Class III Malocclusion. J Interdiscipl Med Dent Sci 2:156. doi: 10.4172/2376-032X.1000156
Copyright: © 2014 Janson G, et al.. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Background: In Class III patients with mild jaw discrepancies and no cosmetic problems, compensatory orthodontic treatment is an alternative for them. The purpose of this retrospective study was to evaluate the cephalometric and occlusal changes of dentoalveolar compensation in the treatment of Class III malocclusions.
Methods: The sample consisted of 23 adult patients (mean age, 25.18 years) from whom lateral headfilms and dental casts were obtained and evaluated at the pretreatment and posttreatment stages. The cephalometric treatment changes were evaluated with paired t tests performed between the two stages, as well as the pretreatment and posttreatment occlusal statuses, assessed with Grainger’s treatment priority index (TPI), in order to evaluate the amount of occlusal changes.
Results: Cephalometric results showed statistically significant dentoalveolar changes primarily in the mandibular component. There were significant increases in overbite and overjet and decreases in apical base discrepancy and facial concavity. Occlusal results showed statistically significant reductions in TPI score, achieving an improvement ratio of 82.17% with the treatment protocol.
Conclusions: Compensatory treatment of adult patients with Class III malocclusion produce favorable and significant amount of dentoalveolar, skeletal and occlusal changes.
