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J Korean Dent Assoc. 1973;11(5):313-316. Published online May 31, 1973.
- X선에 의한 유합치와 계승치에 관한 통계학적 고찰
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박병진1, 조사현2, 우원섭3
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1서울대학교 치과대학 소아치과학교실
2서울대학교 치과대학 소아치과학교실
3서울대학교 치과대학 소아치과학교실 -
- The Statistical Study on Primary Fused Teeth and The Corresponding Permanent Teeth by Orthopantomograph
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Byung-Jin Park1, Sa-Hyun Cho2, Won-Sup Woo3
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1Dept. of Pedodontics, School of Dentistry, S.N.U.
2Dept. of Pedodontics, School of Dentistry, S.N.U.
3Dept. of Pedodontics, School of Dentistry, S.N.U. -
- Abstract
- 970 children visited attached hospital, S.N.U, were taken orthopantomograph. Of those children, there were 14 patients who have primary fused teeth. The author observed those cases and got following results.
1) Incidence of primary fused teeth was higher in female.
2) In the order of frequency, fused teeth of mandibular right primary lateral incisor and canine were 9 and that of mandibular left primary lateral incisor and canine were 4, and there was only one case in maxillary.
3) 13 cases showed the congenital absence of lateral incisor of the corresponding permanent teeth.
4) Incidence of fused teeth was 1.44%.
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