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  • Title: [A comparison of skeletal changes between adult and adolescent with skeletal class II malocclusions before and after therapy].
    Author: Zhao JH, Ding Y.
    Journal: Beijing Da Xue Xue Bao Yi Xue Ban; 2010 Oct 18; 42(5):578-81. PubMed ID: 20957019.
    Abstract:
    OBJECTIVE: To compare skeletal changes after orthodontic treatment between adults and adolescents skeletal class II malocclusions with average mandible plane angle. METHODS: In our study, 30 adolescent girls and 30 adult females who had skeletal class II and Angle class II, division 1 malocclusions were selected. The two groups were matched by gender, treatment period and method. Cephalometric radiographs taken before and after treatment were traced and measured. Student's t-test was used. RESULTS: After treatment, SNA, SNB and ANB decreased in both groups, but no significant difference was found between the two groups. The length of mandible, anterior and posterior facial heights increased significantly in adolescents, but the ratio of lower and total anterior and posterior facial heights remained unchanged and no difference was found between the two groups. CONCLUSION: Although some maxillary and mandibular growths were found in adolescents, the skeletal changes during treatment in skeletal class II malocclusion with average mandible plane showed no difference between adults and adolescents.
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