Functional Appliance Effects on Mandibular Soft Tissues

Launched by KONYA NECMETTIN ERBAKAN ÜNIVERSITESI · Apr 11, 2025

Keywords

ClinConnect Summary

This retrospective study aims to investigate the changes in the mandibular and cervical soft tissues of patients with Class II malocclusion and mandibular retrognathia treated with the Twin Block appliance. The study includes patients treated in the Department of Orthodontics, Faculty of Dentistry, XXXX University, between 2021 and 2023. Ethical approval was obtained from the relevant ethics committee (Decision No: 2023/351), and informed consent was secured from all participants and their parents.

A total of 46 individuals were included: 16 patients with Class II Division I malocclusion, ...

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • having Class II malocclusion caused by mandibular retrognathia (ANB \> 4°, SNB\<78°),
• • exhibiting horizontal and/or normal growth pattern (SN-GoGn=32 ±6),
• • having profile photographs and cephalometric radiographs taken in the NHP (using the self-balance method one of the dynamic approaches for determining NHP)15,
• • not requiring rapid maxillary expansion,
• • not having increased initial lower incisor inclination on lateral cephalometric radiographs,
• • Class II Division 2 patients presenting with ≥4 mm deepbite and the absence of any prior upper incisor protrusion methods,
• • the control group individuals were required to have a skeletal Class I pattern (ANB angle between 0-4°) without any dental deficiencies.
• Exclusion Criteria:
• • previous orthodontic treatment,
• • presence of craniofacial anomalies involving the jaw and/or teeth,
• • severe facial asymmetry