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Clinico‐pathological aspects of a residual natal tooth: a case report
Author(s) -
Tsubone Hanako,
Onishi Tomoyuki,
Hayashibara Tetsuyuki,
Sobue Shizuo,
Ooshima Takashi
Publication year - 2002
Publication title -
journal of oral pathology and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 83
eISSN - 1600-0714
pISSN - 0904-2512
DOI - 10.1034/j.1600-0714.2002.310408.x
Subject(s) - dentin , cementum , dentistry , enamel paint , medicine , pulp (tooth) , dental papilla , incisor , orthodontics , odontoblast
A Japanese girl was referred to Osaka University Dental Hospital for examination of a tooth‐like structure that had erupted following spontaneous exfoliation of a natal tooth in the lower left primary central incisor region. The structure had erupted at 6 months of age, and radiographic and clinical examination showed composition of pulp and dentin, but no enamel. On histological examination, the majority of the dentin area had a tubular dentin‐like appearance, while the outer area of the root appeared to be composed of an osteodentin‐like substance. Most of the dentin was covered by cementum. These findings suggest that the structure had originated from a developing remnant of the extracted natal tooth, which must have remained in the gingival tissues. We termed this calcified structure a residual natal tooth.