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단일 치근을 가진 하악 제1유구치

Other Titles
 Bilaterally primary first molars with single root 
 윤상일  ;  최형준  ;  손흥규  ;  이제호  ;  김성오 
 Journal of the Korean Academy of Pediatric Dentistry (대한소아치과학회지), Vol.31(4) : 701-704, 2004 
Journal Title
Journal of the Korean Academy of Pediatric Dentistry(대한소아치과학회지)
Issue Date
single root ; Hertwig’s epithelial root sheath
In this case, we would like to discuss about the single rooted deciduous mandibular first molar. The deciduous mandibular molar of a five years old boy was shown to have a single root, bilaterally. Ordinarily, the maxilary molars have three roots and the mandibular molars have two roots. However, when the hertwig's epithelial root sheath do not invaginate properly during tooth development, root fusion can occur from the absence of root separation. Molars with fused roots not only have unfavorable crown to root ratio, but also according to many reports, have higher probability of having multiple congenitally missing teeth or dens invaginatus in the maxillary incisors, consequently requiring preventive dental treatment In addition, disorders such as ectodermal dysplasia, syndactyly, clinodactyly, bluish sclera can also be related to this condition. Root fusion is known to be of autosomal recessive inheritance. Up to date, single rooted molars have been reported several times in permanent dentitions but hardly in deciduous dentition, which is the motive for this paper.
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2. College of Dentistry (치과대학) > Dept. of Pediatric Dentistry (소아치과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seong Oh(김성오) ORCID logo https://orcid.org/0000-0002-8620-1377
Son, Heung Kyu(손흥규)
Lee, Jae Ho(이제호) ORCID logo https://orcid.org/0000-0002-1556-3485
Choi, Hyung Jun(최형준) ORCID logo https://orcid.org/0000-0002-3315-6912
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