존경하는 선배님들~~Altered cast 가 무엇인가요??ㅠㅠ

Free end saddles are liable to be displaced under occlusal pressure (anteroposterior rocking around the abutment tooth, which acts as a pivot). This is as a result of the displaceability of the mucosa of the free end saddle. The altered cast technique was a popular technique that was introduced in an attempt to overcome the problem. The metal framework is constructed and light or self cured acrylic material is placed on the framework in the saddle areas creating a close fitting customised tray over the saddle areas. Zinc oxide eugenol or low viscosity silicone is then placed in the customised tray and the framework is placed into the mouth and the impression taken with pressure only on the support elements of the framework resting on teeth. The laboratory then alter the cast (remove the free end saddle), place the metal framework on the cast, invert the cast and framework and pour dental stone to complete the cast.

구글찾으니 많이 나오네요...테크닉 방법도 나오고...

흔히 알고있는 기능인상법으로 제작된 모형입니다. 또는 개형인상체라 합니다.

교채모델 이라고도 하는데 기능인상뜬부분을 기존모델 짤라네고 빡싱해서 새로 모델 만드는거일겁니다

국소의치책에 나와요찾아보셈