Mainieri E T, Boone M E, Potter R H
J Prosthet Dent. 1980 Oct;44(4):368-73. doi: 10.1016/0022-3913(80)90091-8.
This in vitro investigation evaluated methods of investing a maxillary denture (1) by using a silicone rubber and gypsum base covering all the artificial teeth and (2) by following the generally accepted procedure of investing in a total gypsum environment. The amount of vertical opening found in dentures processed with silicone investment was approximately the same as for those processed with the all-gypsum technique, the horizontal movement of the teeth was more lingual in the silicone investment technique. Comparing the weight of the residual impression between the denture base of acrylic resin and the master die showed no significant difference between the silicone investments and the gypsum technique. The relined denture base provided a more accurate fit than a heat-cured denture processed in both types of investment, silicone and all-gypsum. Finally, a special device was developed that permitted tooth movement in processed dentures to be measured simply and accurately.
（1）使用硅橡胶和石膏基覆盖所有人工牙进行包埋；（2）遵循在全石膏环境中包埋的公认程序。用硅橡胶包埋法加工的义齿中发现的垂直开口量与用全石膏技术加工的义齿大致相同，在硅橡胶包埋技术中牙齿的水平移动更偏向舌侧。比较丙烯酸树脂义齿基托和主模型之间的残余印模重量，硅橡胶包埋法和石膏技术之间没有显著差异。重衬义齿基托比在硅橡胶和全石膏这两种包埋类型中加工的热凝义齿更贴合。最后，开发了一种特殊装置，可简单准确地测量加工后义齿中的牙齿移动情况。
