Face mask therapy effects in two skeletal maturation groups of female subjects with skeletal Class III malocclusions
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Published on: May 23, 2020
Ibrahim Yavuz1, Koray Halicioğlu, Ismail Ceylan
1Department of Orthodontics, Faculty of Dentistry, Atatürk University, Kampüs-Universite, Erzurum, Turkey.
Objective:
To examine the effects of face mask therapy in adolescent and young adult female subjects with skeletal Class III malocclusion characterized by maxillary retrognathism.
Materials And Methods:
The material consisted of pretreatment and posttreatment lateral cephalometric radiographs of 28 subjects with Class III malocclusions treated with a face mask. Twenty-eight patients age 10 to 16 years were divided into two groups: the adolescent group (15 female patients) and the young adult group (13 female patients). Within group and between group comparisons were made by paired t-test and Student's t-test, respectively.
Results:
Forward displacement of the maxilla and clockwise rotation of the mandible occurred in both the adolescent and young adult groups. Maxillary-mandibular relationship exhibited an increase in the ANB angle and Wits appraisal, and the soft-tissue changes resulted in a more convex profile. The maxillary incisors moved forward while the mandibular incisors moved backward.
Conclusions:
Face mask therapy improves skeletal Class III malocclusions by a combination of skeletal and dental changes. Although early treatment may be most effective, face mask treatment can provide a viable option for older children as well.
