시멘트 종류에 따른 티타늄 임프란트에 대한 주조체의 유지력

The purpose of this investigation was to test the retention of the castings to titanium implants in dental cements. After making copings with type IE gold, noble metal alloy for ceramics and base metal alloy for ceramics, we cemented them on the abutment of titanium implant with zinc phosphate cement, polycarboxylate cement and glass ionomer cement, and then tested the retention force on an Instron. The results of this study were as follows: 1. The zinc phosphate cement was distinctly superior to polycarboxylate cement and glass ionomer cement regardless of types of alloy in retentive force. 2. There was no statistically significant difference between polycarboxylate cement and glass ionomer cement. 3. Little difference was observed in the retentive forces of three types of alloy regardless of cements.