The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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A Model and Cephalometric Study on the Percentage of Anterior Overbite

전치부 수직피개율에 관한 모형 및 두부방사선 계측학적 연구

  • Park, Seung-Jong (Department of Dentistry, Graduate School, Chosun University) ;
  • Lee, Dong-Joo (Department of Dentistry, Graduate School, Chosun University)
  • 박승종 (조선대학교 치과대학 교정학교실) ;
  • 이동주 (조선대학교 치과대학 교정학교실)
  • Published : 1986.09.01
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Abstract

The purpose of this study was to investigate the factors which cause the differences in the percentage of anterior overbite in spite of normal molar relationship in terms of skeletal, dental and dentoalveolar relations. The models and cephalograms taken from 154 subjects, 89 of shallow overbite and 65 of deep overbite ranging from 18 to 29 years of age were studied and analyzed statistically. The results were as follows. 1. In determining the percentage of anterior overbite, the significant differences were higher in the dental and dentoalveolar factors than in the skeletal factors and were higher in the proportional and angular measurements than in linear measurements. 2. The factor which had the greatest influence on the percentage of anterior overbite was the proportional parts of the dental and dentoalveolar heights. 3. The most influencing factor which determined the percentage of anterior overbite was the SN-MP angle among the skeletal factors.

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