乳臼齒 强直에 關한 X-線學的 考察
STUDY ON PREVALENCE OF ANKYLOSIS IN PRIMARY MOLARS BY ORTHOPANTOMOGRAPH
한병소,
소속 상세정보
한병소 ( ) - 서울대학교 대학원 치의학과 소아치과학
KMID : 0358919750020010007
Abstract
Surveying the prevalence of the ankylosis in primary molars in 694 children (male;351, female; 343) from 4 to 10 years old by orthopantomograph, the author obtained the following results.
1) The prevalence of ankylosed dentition was 6.6percent and that of ankylosed teeth was 1.06 percent of total primary molars.
2) The mandibular first molar was most frequently affected (2.6%), followed by maxillary first molar (1.3%), mandibular second molar (0.3%), and maxillary second molar (0.2%).
3) The slight infraclusion of total ankylosed teeth was 68.4%, and the severe infraclusion occured more frequently among maxillary molars than mandibular molars.
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