Korean J Orthod.  1998 Apr;28(2):189-201.

A study of the characteristics of craniofacial skeleton on orthognathic surgical cases with skeletal Class III malocclusion

Abstract

The purpose of this study was to evaluate the characteristics of craniofacial skeleton on orthognathic surgical cases with skeletal Class III malocclusion. For this study, 74 students at the dental college of Chosun University volunteered as a normal occlusion group. They had well-balanced faces and good occlusions with acceptable Class I molar relationship. They had not received orthodontic treatment and had no signs or symptoms of temporomandibular joint dysfunction. 45 malocclusion patients enrolled for orthognathic surgical treatment with skeletal Class III malocclusion at the Department of Orthodontics, College of Dentistry, Chosun University. On the basis of this study, the results of this study were as follows: 1. Skeletal Class III malocclusion was largely due to the overgrowth of mandible in man and the undergrowth of maxilla in woman. 2. The mandible was antero-inferiorly overgrown by large MP-HP angle and large gonial angle in orthognathic surgical cases with skeletal Class Iii malocclusion. And also, upper incisors were severely labioversioned, but on the other hand lower incisors were linguoversioned. 3. In female, lower-third facial height was characteristically shortened in comparison with middle-third facial height and also, lower facial throat angle was sgrall in male.

Keyword

Orthognathic surgery; skeletal class III malocclusion; craniofacial skeleton

MeSH Terms

Dentistry
Female
Hand
Humans
Incisor
Male
Malocclusion*
Mandible
Maxilla
Molar
Orthodontics
Orthognathic Surgery
Pharynx
Skeleton*
Temporomandibular Joint
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