부산대학교 도서관

The impression technique using a silicone rubber impression material and an abutment tray proved to be the most accurate. However, there was a problem of adhesion between the impression material and the abutment tray with this technique. In this study, five different silicone rubber impression materials (two condensation and three addition types) were used. The impression materials were evaluated to determine their bond strengths with the selfcuring resins (material of the abutment tray) The results were as follows : 1) Adhesive (tosicon adhesive) in the condensation type and GC adhesive (Hydrophilic EXAFLEX adhesive) in the addition type were superior in bond strength.2) Tosicon's adhesive or GC adhesive was used with other manufacturer's impression materials. In the condensation type, the bond strength of tosicon's adhesive was less than the manufacturer's recommended adhesive. The bond strength of GC adhesive was the best of the addition type.There are various levels of bond strength of silicone rubber impression materials. Some adhesives recommended by manufacturers are not always effective. Therefore, it is necessary to use these materials with caution in dental clinic.