A novel system and method for maxillary protraction in class III malocclusion adult patients
Researcher Bulletin of Medical Sciences,
Vol. 27 No. 1 (2022),
,
Page e4
Abstract
Background and Objectives: Given the extensive number of surgical procedures available for correcting CL III anomalies, the present study was conducted in a private clinic from 2014-15 to determine whether simpler orthodontic and surgery techniques could be an alternative to the conventional techniques for resolving such functional and aesthetic problems.
Materials and Methods: The present study was conducted using a sequential before-after design on patients with mild to moderate maxillary deficiency. First, the study records including casts, photographs and radiographs were prepared. A Hyrax appliance with two tongue plates was then constructed for the patient before the Surgically Assisted Rapid Maxillary Expansion (SARME) osteotomy. The surgical technique involved local anesthesia without general anesthesia and the Lefort I osteotomy was performed without down fracture and without the manipulation of the pterygomaxillary suture. The transverse problem was corrected by unscrewing the Hyrax, and the tongue force exerted on the back of the tongue plate corrected the sagittal maxillary deficiency. To evaluate the efficacy of this appliance, the mean changes to the cephalometric indicators before and after the treatment were examined, and the paired t-test was used for the statistical analysis.
Results: The present study was conducted on 11 patients (9 females and 2 males). The mean changes indicated a significant increase in Articular Angle, Jarabak index, and a significant decrease in L1 - NB (mm), L1 - NB (º) and Saddle Angle. The other indicators had either decreased or were not changed.
Conclusion: Using a Hyrax appliance combined with a tongue plate after a SARME surgery is effective in correcting CL III anomalies associated with maxillary deficiency.
- Malocclusion; CL III; Maxillary deficiency; SARME; Tongue plate; Hyrax
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References
2. S.A. Al-Mozany, O. Dalci, M. Almuzian, C. Gonzalez, N.E. Tarraf, M. A. Darendeliler, A novel method for treatment of Class III malocclusion in growing patients. Progress in Orthodontics,18, Article number: 40, (2017). https://doi.org/10.1186/s40510-017-0192-y.
3. S. Eslami, J. Faber, A. Fateh, F. Sheikholaemmeh, V. Grassia, A. Jamilian, Treatment decision in adult patients with class III malocclusion: surgery versus orthodontics. Prog Orthod. 19 (2018). DOI: https://doi.org/10.1186/s40510-018-0218-0.
4. P. Ngan, W. Moon, Evolution of Class III treatment in orthodontics. AJO-DO. 148 (2015) 22-36. DOI: https://doi.org/10.1016/j.ajodo.2015.04.012
5. Z. Azamian, F. Shirban, Treatment Options for Class III Malocclusion in Growing Patients with Emphasis on Maxillary Protraction. Scientifica (Cairo). (2016) 8105163. DOI: https://doi.org/10.1155/2016/8105163.
6. M. Nienkemper, B.Wilmes, A. Pauls, D. Drescher, Maxillary protraction using a hybrid hyrax-facemask combination, Progress in orthodontics. 14 (2013).
7. W. Daher, J. Caron, MH. Wechsler, Nonsurgical treatment of an adult with a Class III malocclusion, AJODO. 132 (2007).
8. P. Ngan, W. Moon, Evolution of Class III treatment in orthodontics, AJODO. 148 (2015) 22-36.
9. K. Kajiyama, T. Murakami, A. Suzuki, Evaluation of the modified maxillary protractor applied to Class III malocclusion with retruded maxilla in early mixed dentition, AJODO. 2000;118(5):549-59.
10. P. Ngan, Editor Early timely treatment of Class III malocclusion. Seminars in Orthodontics, (2005).
11. WR. Proffit, RP. White, DM. Sarver, Contemporary treatment of dentofacial deformity: Mosby. (2003).
12. IP. Tortamano, M. Siviero, S. Lee, RM. Sampaio, JL. Simone, RG. Rocha, Onset and duration period of pulpal anesthesia of articaine and lidocaine in inferior alveolar nerve block. Braz Dent J. 24 (2013) 371-4.
13. D. Rizzatto, M. Susana, L. Macedo de Menezes, MM. Farret, EMS. de Lima, R. Belle, et al. Surgically assisted rapid maxillary expansion combined with maxillary protraction in an adult: a patient report, World J Orthod. 10 (2009).
14. B. Akarsu, T. Taner, G. Tuncbilek, ME. Mavili, Maxillary protraction in adult cleft lip and palate by a rigid external distraction device with dentoskeletal anchorage. Eur J Dent. 6 (2012) 206.
15. EP. Buchanan, CH. Hyman editors. LeFort I osteotomy. Seminars in plastic surgery, Thieme Medical Publishers. (2013).
16. WR. Proffit, RP. White, DM. Sarver, Contemporary treatment of dentofacial deformity: Mosby. (2003).
17. IP. Tortamano, M. Siviero, S. Lee, RM. Sampaio, JL. Simone, RG. Rocha, Onset and duration period of pulpal anesthesia of articaine and lidocaine in inferior alveolar nerve block. Braz Dent J. 24 (2013) 371-4.
18. M. Rana, N-C. Gellrich, M. Rana, J. Piffkó, W. Kater, Evaluation of surgically assisted rapid maxillary expansion with piezosurgery versus oscillating saw and chisel osteotomy-a randomized prospective trial. Trials. 14 (2013) 49.
19. GA. Vaughn, B. Mason, H-B. Moon, PK. Turley, The effects of maxillary protraction therapy with or without rapid palatal expansion: a prospective, randomized clinical trial. AJODO. 128 (2005) 299-309.
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