Korean J Orthod.  2002 Feb;32(1):33-42.

Dentoalveolar Characteristics according to facial types of Class III Malocclusion

Affiliations
  • 1Department of Orthodontics, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Korea. cbuortho@moak.chonbuk.ac.kr

Abstract

This study was performed to compare the pattern of dentoalveolar characteristics in different vertical and anteroposterior skeletal types in skeletal Class III malocclusion. The samples selected for this study were consisted of 60 subjects(29 males and 31 females, mean age; 19.7 years) in Class III group, 43 subjects(14males and 29 females, mean age: 20.5 years) in normal group. The findings of this study were as follows; 1. The IMPA of the Class III group was smaller than that of the Class I group(p<0.01). 2. In the Class III groups, SNB and NtoPog had negative correlation with IMPA(p<0.01). The SNB and NtoPog had correlations with SNU1, FHU1 and PalU1(p<0.01) in the male samples, and in the female samples, the SNB and NtoPog had correlations with SNU1(p<0.01). 3. In the Class III male samples, SNMP, FMA, PalMP had negative correlation with IMPA(p<0.01). SNMP, FMA, PalMP had not significant correlation with SNU1, FHU1, PalU1. In the Class III female samples, FMA, PalMP had negative correlation with IMPA(p<0.01). 4. In the high angle group of Class III samples, SNU1, IMPA is smaller than that of low angle group of Class III samples(p<0.05).

Keyword

Dentoalveolar compensation; Incisor inclination; Class III malocclusion

MeSH Terms

Female
Humans
Male
Malocclusion*
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