의치상 레진과 이장 레진 간의 결합강도 비교
Comparison of bond strength between denture base resin and reline resin
금영희, 김부섭,
소속 상세정보
금영희 ( Geum Young-Hee ) - 부산가톨릭대학교 보건과학대학 치기공학과
김부섭 ( Kim Bu-Sob ) - 부산가톨릭대학교 보건과학대학 치기공학과
KMID :
0362120170390030161
DOI : doi.
Abstract
Purpose: We compare the bond strength of heat-cured PMMA of Lucitone 199 and QC-20 and Tokuyama Rebase Resin of self-cured resin, which are widely used and well accepted in clinical practice. In order to test the mechanical bonding and chemical bonding, we will compare the bond strength between EstheShot Bright, Smiletone, Repair and Rebase resins.
Methods: The denture base resin used in this study was PMMA heat-cured QC-20 and Lucitone 199, polyamide resin EstheShot Bright, Smiletone. And Two types of self-curing Rapid Repair and Tokuyama Rebase were used as resection resins. To measure the bond strength, the denture specimens were fabricated in the size of 10×64×3.5 mm as instructed by the manufacturer. A surface treatment agent was applied to the cut surfaces of each denture specimen, and the specimens were placed in a preformed silicone mold, and autoclaved excimer resins were prepared. The bending strength of the fabricated specimens was measured using a universal testing machine (STM-5, United Calibration Co., U.S.A.) to measure the three-point bending strength.
Results: In both polycarbonate and polyacetal resin, a special resin surface treatment agent showed higher bonding strength than the resin surface treatment agent(p<0.05). Regardless of the type of surface treatment, polycarbonate showed higher bond strength than polyacetal resin(p<0.05).
Conclusion: It is considered desirable to use a special surface treating agent for the thermoplastic denture base resin such as polycarbonate and polyacetal resin.
키워드
Bond strength; Denture base resin; PMMA; Reline resin; Thermoplastic resin
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