| 摘要 |
<p>The mould forms a tooth die and unitary stem as an integral separable part of a dental stone model. The casting member is supported in a negative mould and spaced from the surface to enable moulding stone to flow about the member. The casting member has a hollow interior with a first opening at one end for receiving the poured moulding stone which forms the stem of a tooth die having the length and cross-sectional shape of the defines of the hollow interior and that is unitary with a tooth die replica of a tooth impression of the negative dental impression mould.</p> |
