下顎永久前歯部にみられた双生歯の1例

DOI 被引用文献2件 参考文献14件

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  • A Case of Geminated Tooth in the Mandibular Permanent Anterior Tooth Area

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We report the case of a child of a Japanese father and Brazilian mother who visited our department to under go caries treatment. At the examination, a geminated tooth considered to be caused by the concrescence of the left mandibular central incisor and several supernumerary teeth was found. Geminated teeth are rare, and the following findings were obtained.<BR>1. X-rays showed a geminated tooth caused by the concrescence of the left mandibular central incisor, one erupted supernumerary tooth, and two impacted supernumerary teeth, and the presence of the teeth adjacent to the geminated tooth in the area corresponding to that of the left mandibular central incisor was confirmed.<BR>2. Although the concrescent tooth area between the left mandibular central incisor and the erupted supernumerary tooth was united by dentine-like tissue containing some enamel areas, the concrescent aspects of the impacted supernumerary teeth were not clarified.<BR>3. The mesio-distal diameter of the geminated tooth in the area corresponding to that of the left mandibular central incisor was slightly smaller than that of the normal tooth in Japanese males.<BR>4. Careful dental care was recommended.

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