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.
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.
Authors: F Angelieri; A C Ruellas; M S Yatabe; L H S Cevidanes; L Franchi; C Toyama-Hino; H J De Clerck; T Nguyen; J A McNamara Journal: Orthod Craniofac Res Date: 2017-06-29 Impact factor: 1.826
Authors: Taylor Rae Vracar; Wanda Claro; Michael Eli Vracar; Randall Stetson Jenkins; Lane Bland; Ayman Al Dayeh Journal: J Oral Biol Craniofac Res Date: 2021-05-21