| 摘要 |
The apparatus has a threaded rod or gauge (5) fixed in center of a base (2). A beamplate (1) is perforated with holes (6) for receiving endodontic files (3), where operating radius of the endodontic files is obtained by introducing the beamplate in the holes by rotating the beamplate along the gauge until contact of a tip of the endodontic files with the base and contact of a silicone stopper (4) with the beamplate. The base is provided with a square or round head, where an upper face of the head is divided into four zones. |
