| 摘要 |
PCT No. PCT/AU82/00068 Sec. 371 Date Dec. 22, 1982 Sec. 102(e) Date Dec. 22, 1982 PCT Filed May 7, 1982 PCT Pub. No. WO82/03762 PCT Pub. Date Nov. 11, 1982.Method and means for obtaining a dental impression of a reduced tooth for jacket crown, bridgework and like constructions, comprising the use of an impression tube which is substantially inflexible at least longitudinally and which is attached to a syringe for supply of impression material when placed about a tooth and which has a distal end provided with a contour corresponding to the gingival margin at said tooth by the scribing on said tube of a line substantially parallel to the gingival margin, and subsequently removing the end portion of the tube beyond said line. |
