@article{oai:hsuh.repo.nii.ac.jp:00008121,
 author = {窪田, 正樹 and 有末, 眞 and 柴田, 敏之 and 大森, 一幸 and 加藤, 元康 and 永易, 裕樹 and 平, 博彦 and 村瀬, 博文 and 金子, 昌幸},
 issue = {2},
 journal = {東日本歯学雑誌},
 month = {Dec},
 note = {P(論文), To estimate the state of upper wisdom tooth eruptions, we observed orthopantomographic films of 601 students (age 20～29, 531 males, 70 females) and analysed the 952 upper wisdom teeth there (844 male, 108 female) for the following 4 items: 1. The direction of the wisdom teeth to the occlusal plane. 2. The position of the highest portion of the wisdom teeth relative to the second molar. 3. The distance between the lowest part of a wisdom tooth and the maxillary sinus. 4. The number of wisdom teeth roots. The following results were obtained: 1. 72.2% of wisdom teeth showed a distoangular tendency. 2. 63.3% of wisdom teeth erupted above the second molar cervical line. 3. In 45.7% of the cases, the lowest part of the wisdom tooth was separate from the maxillary sinus. 4. 75.4% of wisdom teeth had one root.},
 pages = {187--192},
 title = {<原著>上顎智歯に関するX線学的観察},
 volume = {14},
 year = {1995}
}