| 摘要 |
PCT No. PCT/GB97/01508 Sec. 371 Date Dec. 3, 1998 Sec. 102(e) Date Dec. 3, 1998 PCT Filed Jun. 4, 1997 PCT Pub. No. WO97/46171 PCT Pub. Date Dec. 11, 1997A device for the production of a dental working model for preparation of a prosthetic work comprises a body member having a blind arcuated cavity bounded by facing inner and outer cavity walls, for receiving semi-liquid model material. The blind end of the arcuate cavity is closed by a sacrificial membrane which is integral with the body member. The membrane is of sufficient thickness to contain the semi-liquid model material within the arcuate cavity and of sufficient thinness to be easily removed, for example, by grinding. |
