上下顎大臼歯部にみられた多発性過剩歯の稀有なる1例

抄録

The patient, 26 year old farmer, had pressure feeling at the distal region of the upper and lower second molar about two years ago. X-ray examination found the 6 super-numerary molars embedded in the distal portion of the upper and lower second molars on the both side. These supernumerary molars were operatively removed except the left maxillary distal one because of difficulties of extraction. According to the macroscopic examination, these supernumerary teeth were identified as 4 th or 5 th molar. These teeth had relatively well developed crown, while their roots were short, round and blunted.