Abutment teeth preparation的用法和样例：
- Objective The effect of clasp on the health of abutment teeth.
- Methods Casting process was adopted for the preparation of the clasp, which was fixed at the points on the mesial and distal surfaces of the abutment tooth.
- Conclusion Clasps of RPD increased the risk of root caries of abutment teeth.
- Casting clasp between teeth (CCBT) is set up between buccal arid lingual embrasure of two abutment teeth.