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KJO Korean Journal of Orthodontics

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pISSN 2234-7518
eISSN 2005-372X
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Original Articles

Korean J Orthod 1998; 28(5): 751-761

Published online October 31, 1998

Copyright © The Korean Association of Orthodontists.

A longitudinal study on the growth pattern of craniofacial skeleton in skeletal class Ⅲ

Young-Chel Park , Min-Sung Park , Tae-Gyun Kim

Abstract

The purpose of this study was to find the characteristics of lateral cephalogram of skeletal class III malocclusion patients to whom orthognathic surgery was essential. For this study 37 patients with skeletal class III and going to treat or be treated orthognathic surgery(age 7 - 17) were selected to experimental group and 56 people with normal occlusion ( age 8 - 13) were selected to normal group and the two groups were evaluated and statistically analyzed and the results were as follows 1. In comparison of experimental group and normal group in prepubertal group, there were significant differences in ANS-Ul/Me-Li, Mx. Length/Mn.Length, S-N/Go-Me, Wits, ANB, SN-Pog, IMPA, Facial Convexity, APDI (P<0.05) 2. In comparison of experimental group and normal group in pubertal group, there were significant differences in ANS-Ul/Me-LI, S-GoN-Me, Mx.LengtWMn.Length, S-N/Go-Me, Wits, Saddle Angle, SNB, ANB, SN-Pog, R MA, Interincisal Angle, Facial Convexity, APDI (P<0.05) 3. Among items showing characteristics of skeletal class M malocclusion, there were no significant differences between prepubertal group and pubertal group in other items except Mx. LengtblMn. Length, APDI {P

Keywords: Class Ⅲ , Orthognathic surgery , Prepubertal grorp , Pubertal group

Article

Original Articles

Korean J Orthod 1998; 28(5): 751-761

Published online October 31, 1998

Copyright © The Korean Association of Orthodontists.

A longitudinal study on the growth pattern of craniofacial skeleton in skeletal class Ⅲ

Young-Chel Park , Min-Sung Park , Tae-Gyun Kim

Abstract

The purpose of this study was to find the characteristics of lateral cephalogram of skeletal class III malocclusion patients to whom orthognathic surgery was essential. For this study 37 patients with skeletal class III and going to treat or be treated orthognathic surgery(age 7 - 17) were selected to experimental group and 56 people with normal occlusion ( age 8 - 13) were selected to normal group and the two groups were evaluated and statistically analyzed and the results were as follows 1. In comparison of experimental group and normal group in prepubertal group, there were significant differences in ANS-Ul/Me-Li, Mx. Length/Mn.Length, S-N/Go-Me, Wits, ANB, SN-Pog, IMPA, Facial Convexity, APDI (P<0.05) 2. In comparison of experimental group and normal group in pubertal group, there were significant differences in ANS-Ul/Me-LI, S-GoN-Me, Mx.LengtWMn.Length, S-N/Go-Me, Wits, Saddle Angle, SNB, ANB, SN-Pog, R MA, Interincisal Angle, Facial Convexity, APDI (P<0.05) 3. Among items showing characteristics of skeletal class M malocclusion, there were no significant differences between prepubertal group and pubertal group in other items except Mx. LengtblMn. Length, APDI {P

Keywords: Class Ⅲ , Orthognathic surgery , Prepubertal grorp , Pubertal group