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  • Electric and/or pneumatic trephine blades designed to cut and remove circular sections of tissue during dental procedures. These devices typically consist of a hollow cylindrical blade having a circular saw-like edge, a shaft, and a proximal end appropriate for connection to a low-speed rotary dental handpiece. Dedicated dental trephine blades are available to facilitate the retrieval of broken files and silver points from root canals, for artificial tooth root implantation, and also for failed implant removal. Manual dental trephines that include a blade as an integral part are also available, but not frequently used.
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