Dental abnormalities include an unusual number of teeth, configuration, unusual size of the tooth, malformation of the dental hard tissues, and abnormal eruption and position. In fusion, several tooth germs have been fused during odontogenesis. This occurs commonly in the anterior tooth region but rarely in the molar region. Especially, the incidence of fusion involving supernumerary teeth in the maxilla and third molar is extremely low. In this case report, we present a cone-beam CT image of a 41-year-old woman with fusion involving supernumerary teeth in the maxilla and third molar and reviewed the literature on type of this lesion.
上顎右側過剰歯と第三大臼歯の融合歯の1例
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