E-ISSN 2148-9505
Original Article
Is It Possible to Protract the Maxilla by Surgically Assisted Rapid Maxillary Expansion and Intermaxillary Class III Elastics?
1 Department of Orthodontics, Private Practice, Ankara, Turkey  
2 Department of Orthodontics, Medipol Mega University Hospital, İstanbul, Turkey  
3 Department of Orthodontics, Ankara University School of Dentistry, Ankara, Turkey  
4 Department of Oral and Maxillofacial Surgery, Private Practice, İstanbul, Turkey  
5 Department of Oral and Maxillofacial Surgery, Ankara University School of Dentistry, Ankara, Turkey  
Turk J Orthod 2019; 32: 96-104
DOI: 10.5152/TurkJOrthod.2019.18060
Key Words: Class III elastics, maxillary retrusion, SARME, miniscrews
Abstract

 

Objective: The purpose of the present study was to evaluate skeletal and soft tissue changes with surgically assisted rapid maxillary expansion (SARME) and intermaxillary Class III elastics.

 

Methods: A total of 15 patients (mean age: 19.58 years) were included in the study. Each patient underwent SARME with the use of Class III elastics (500 g) applied through miniscrews to stimulate maxillary advancement. Lateral cephalograms and posteroanterior radiographs obtained before treatment (T1), after SARME and elastic use (T2), and after treatment (T3) were analyzed to determine the changes in each phase of treatment. Planimeter was used to evaluate facial soft tissue changes. Wilcoxon signed-rank test was used to evaluate the changes that occur during treatment.

 

Results: SARME provided permanent and efficient maxillary expansion at both skeletal and dental levels (p<0.01). Maxillary skeletal (ANS-Ver and U1i-Ver; p<0.01) and soft tissue (Pr-Ver, Sn-Ver, and ULA-Ver; p<0.01) variables and superior upper labial area (Area 1; p<0.05) increased due to maxillary dental and skeletal changes. Superior lower labial area (Area 3; p<0.05) decreased as a result of slight increase in facial height and changes in maxillary–mandibular incisor relationship at the end of the treatment.

 

Conclusion: The results suggest that the improvement in the facial profiles of the patients is related to the significant increase in the bony and dental support of the upper lip region together with the contribution of the superior lower lip area.

 

 

Cite this article as: Şahbaz EB, Cesur E, Altuğ AT, Ergül KC, Karasu HA, Memikoğlu UT. Is It Possible to Protract the Maxilla by Surgically Assisted Rapid Maxillary Expansion and Intermaxillary Class III Elastics? Turk J Orthod 2019; 32(2): 96-104.

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AVES | Copyright © 2019 Turkish Journal of Orthodontics | Latest Update: 26.06.2019