上下顎の左右小臼歯部に5歯の埋伏過剰小臼歯が認められた1症例

概要

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It is reported that supernumerary teeth are common in the anterior region of the maxilla but not in the premolar one. We clinically encountered an unique case of a girl of 9 years and 6 months who was affected by two impacted supernumerary teeth in each premolar region of the mandible, respectively, and a new supernumerary tooth emerged additionally in the right premolar region of the maxilla. The additional supernumerary tooth was detected by panoramic radiography at the recall time, 4 years 4 months later, although these four supernumerary teeth were detected prior to orthodontic treatment and immediately extracted at age 9.5 years. Therefore, this clinical experience indicated the usefulness and importance of the panoramic radiograph at a recall time after treatment to detect an undesirable change of teeth germ alignment in the jaw bone. We are now carefully seeking an extraction time for a new supernumerary tooth emerged additionally in the right premolar region of the maxilla in this clinical case to prevent an unexpected damage of a root resorption of the adjacent teeth.
福岡歯科大学学会の論文
2001-03-31