下顎第3大臼齒의 埋伏에 關한 硏究
A Study of Mandibular Third Molar Impaction
양원식,
소속 상세정보
양원식 ( ) - 서울대학교 치과대학 교정학교실
KMID : 0361919810110020077
Abstract
The author analyzed the morphological pattern of mandibles and lower third molars in order to study and predict the impaction of the developmental third molars. The subjects consisted of. 37 males and 87 females with malocclusion.
The following results were obtained:
1. The mandible was shown to be shorter in the impacted third molar group than in the erupted group, both in over-all length and in body length.
2. The developmental mesial angulation of the third molar to the mandibular plane was higher in the impacted third molar group.
3. There was a tendency for impacted third molars to be slightly larger than those which erupted
except Class II malocclusion in female.
4. In the available space for the eruption of the third molar, significant space deficiency was found in association with the impacted third molar group compared with the erupted group.
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