| 摘要 |
<p>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 (19) which is substantially inflexible at least longitudinally and which is attached to a syringe (15) for supply of impression material when placed about a tooth (12) and which has a distal end (28) provided with a contour corresponding to the gingival margin (14) at said tooth by the scribing on said tube of a line (38) substantially parallel to the gingival margin, and subsequently removing the end portion (39) of the tube beyond said line.</p> |
