1990 年 39 巻 4 号 p. 966-972
A case of geminated tooth observed in the premolar region of the mandible associated with bilaterally embedded teeth is presented and discussed.
The patient was a 18 year-old man admitted to the Higashi Nippon Gakuen University Dental Hospital with a chief complaint of bilateral supernumerary embedded teeth in the mandible. Noteworthy ewents were not seen either in the family history or in the patient's past history.
The panoramic X-ray radiograms taken on the first examination at the Department of Dental Radiology demonstrated an embedded supernumerary premolar-shaped tooth in the right mandible and an embedded supernumerary geminated tooth in the left mandible in addition to normal premolars. The intra-oral X-ray radiograms obtained on the same time ravealed that these teeth were situated at the lingual sides of normal premolars.
Surgical extraction of these embedded teeth was carrid out in the Department of Oral Surgery.