锤造冠用于牙体缺损的修复或固定义齿固位体以来,有人认为对前牙及双尖牙的壳冠在制作上,总是感到不密合或易起皱折,磨牙(牙合)面尖凹不够清晰。本文对此问题作粗略的探讨。制作锤造壳冠时,石膏代型外形修整是否得当,这对锤造冠的精密性是重要的一环。如何修整代型,综合有关资料如下: 一、代型根部须与牙冠长轴方向一致,不应弯曲。 Hammer crown for the restoration of dental defects or fixed denture retainer, some people think that the crown on the front teeth and bicuspid in the production, always feel not close or easy to wrinkle, molars (occlusal Surface sharp enough not clear. This article gives a rough discussion of this issue. Making hammer shell crown, gypsum dressing shape is appropriate, it is the crown of precision hammer is an important part. How to trim generation, the comprehensive information is as follows: First, the type of root should be consistent with the long axis of the crown, should not be bent.