| 摘要 |
Dental obturators are used in the preparation of root canals in teeth. The subject obturators are so constructed that they bind at a particular distance into the canal, thereby precluding possible damage at the end of the canal. The obturator is used for positioning of a sealing material placed on a carrier portion of the obturator into the root canal. Disclosed are a variety of structural configurations on a tapered surface of the carrier portion is disclosed. |
