Study on Vertical Changes in Untreated Skeletal Class Ⅲ Females with Various Vertical Growth Types

doi:10.13701/j.cnki.kqyxyj.2020.06.022

Abstract

Abstract: Objective: To investigate the vertical changes of jaws of skeletal class Ⅲ females with various vertical growth types in different growth stages by CBCT. Methods: A total of 270 females with skeletal class Ⅲ malocclusion with various vertical growth types were randomly selected from CBCT data and divided into pre-growth spurts, peak period, and post-growth spurts. Invivo 5.3 software was used to measure the correlation index. The results were analyzed and discussed. Results: In the high-angle group, the changes were statistically different in addition to the pre and the post peak comparison and the occlusal angle in each period. In the mean-angle group, the changes were statistically different in addition to the pre and the post peak comparison of PP-FH angle and the occlusal angle in each period. In the low-angle group, the changes were statistically different in addition to the pre and the post peak comparison of PP-FH angle and the occlusal angle in each period. Conclusion: In the process of growth and development, the vertical changes of the jaw in class Ⅲ malocclusion females with various facial skeletal types demonstrated significant differences

Key words: CBCT, class Ⅲ malocclusion, CVS method, jaw, growth rotation

SUN Ziye, GAO Hui, XIAO Danna. Study on Vertical Changes in Untreated Skeletal Class Ⅲ Females with Various Vertical Growth Types[J]. Journal of Oral Science Research, 2020, 36(6): 599-602.

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