Saadet Çınarsoy CİĞERİM, Seda KOTAN, Gönül DİNÇ

Fixed Orthodontic Treatment of a Patient With Skeletal Class II Malocclusion with Infrazygomatic Anchorage and En-Masse Retraction

Treatment of skeletal Class II malocclusions is difficult anomalies in orthodontics. The treatment of skeletal Class II anomalies varies according to the jaw and the growth period of the anomalies. Adult individuals whose growth is over are treated with fixed orthodontic mechanics or orthognathic surgical approaches. If skeletal class II anomaly is not severe and does not constitute a problem aesthetically, camouflage treatment can be done with fixed orthodontic mechanics. This case report presents the results of orthodontic camouflage treatment and treatment applied to a skeletal Class II malocclusion female patient with chronological age of 18 years and skeletally in the Ru period. The molar relationship of the patient with a slightly convex profile is Angle Class II. In cephalometric examination, skeletal class II problem was detected (ANBº = 6º). At the end of the treatment, angle class II relation in the molar region, angle class I relation in the canine region and a smooth soft tissue profile were obtained

PDF

___

1. Bishara SE. Class II malocclusions: diagnostic and clinical considerations with and without treatment. Semin Orthod 2006; 12(1): 11-24.

2. Proffit WR, Fields HW. Contemporary Orthodontics. 4th ed .Mosby; 2007.

3. Koretsi V, Zymperdikas VF, papageorgiou SN, papadopoulos MA. Treatment effects of removable functional appliances in patients with class II malocclusion: a systematic review and metaanalysis. Eur J Orthod 2015; 37: 4: 418-434.

4. D'Antò V, Bucci R, Franchi L, Rongo R, Michelotti A, Martina R. Class II functional orthopaedic treatment: a systematic review of systematic reviews. J Oral Rehabil 2015; 42: 8: 624-642.

5. Mclaughlin RP, Bennett JC, Trevisi HJ. Systemized Orthodontic Treatment Mechanics. 3rd ed. St. Louis: CV Mosby 2001; 162-183.

6. Proffit WR, Fields HW. Contemporary fixed appliances. In: Proffit WR, Fields HW, Sarver DM, eds. Contemporary Orthodontics, 4th ed. St. Louis: CV Mosby 2007; 394-415.

7. Janson, G., Sathler, R., Fernandes, T. M. F., Branco, N. C. C., & de Freitas, M. R. (2013). Correction of Class II malocclusion with Class II elastics: a systematic review. American Journal of Orthodontics and Dentofacial Orthopedics 2013; 143: 3: 383-392.

8. Bayram M, Nur M, Kılkış D. Correction of Class II canine relationship using mandibular mini-screw: case report. Turkiye Klinikleri J Dental Sci 2009; 15: 1: 69-72.

9. Schneider PP, Júnior LGG, Da Costa Monini A, Dos Santos Pinto A ve Kim KB. Comparison of anterior retraction and anchorage control between en masse retraction and two-step retraction: A randomized prospective clinical trial. Angle Orthodontist 2019; 89: 190-199.

10. Park HS, Bae SM, Kyung HM, Sung J. H., “Microimplant anchorage for treatment of skeletal Class I bialveolar protrusion,” Journal of Clinical Orthodontics 2001; 417-422.

11. Mihalik CA, Proffit WR, Phillips C. Longterm follow-up of Class II adults treated with orthodontic camouflage: A comparison with orthognathic surgery outcomes. Am J Orthod 2003; 123: 266-278.

12. McGorray, Brazeau, King, Wheeler Timing of Class II treatment: Skeletal changes comparing 1-phase and 2-phase treatment. Am J Orthod Dentofacial Orthop 2007; 132: 481-489.

13. Huang Y, Wang XX, Zhang J, Liu C. Root shortening in patients treated with two-step and en masse space closure procedures with sliding mechanics. Angle Orthodontist 2010; 80: 3: 492-497.

14. Jarabak, Joseph R. "Development of a treatment plan in the light of one's concept of treatment objectives." American Journal of Orthodontics 1960: 481-514.

15. Melsen B, Verna C. Miniscrew implants: th archus anchorage system. Semin. Orthod., Philadelpia 2005; 11: 1: 24-31.

16. Liou EJ, Chen PH, Wang YC, Lin JC. A computed tomographic image study on the thickness of the infrazygomatic crest of the maxilla and its clinical implications for miniscrew insertion. Am J Orthod Dentofacial Orthop 2007; 131: 352-356.

17. Oliver, Bruce M. "The influence of lip thickness and strain on upper lip response to incisor retraction." American journal of orthodontics 1982; 141-149.

18. Bailey LJ, Haltiwanger LH, Blakey GH, Proffit WR. Who seeks surgical orthodontic treatment: a current review. Int J Adult Orthodon Orthognath Surg 2001; 16: 280-292.

19. Yezdani, A. Arif, et al. "Correction of Class II Skeletal Malocclusion with an Infra-Zygomatic Crest Bone Screw Approach." Indian Journal of Public Health Research & Development 2019; 2386-2391.

20. Lin JH, Chang CH, Eugene R. W. Vertical incision subperiosteal tunnel access and threedimensional OBS lever arm to recover a labially-impacted canine: Differential biomechanics to control root resorption. APOS Trends in Orthodontics 2019; 9: 1: 7-18