Comparison of the Microleakage and Shear Bond Strength to Dentine of Different Tricalcium Silicate-based Pulp Capping Materials

Miri Kim; Wansun Jo; Jih Myeong-kwan; LEE, SANG-HO; LEE NAN YOUNG

doi:10.5933/JKAPD.2019.46.1.76

This study evaluated the microleakage of three restorative materials and three tricalcium silicate-based pulp capping agents. The restorative materials were composite resin (CR), resin-reinforced glass ionomer cement (RMGI), and traditional glass ionomer cement (GIC) and the pulp capping agents were TheraCal LC® (TLC), Biodentine® (BD), and ProRoot® white MTA (WMTA). Additionally, shear bond strengths between the pulp-capping agents and dentine were compared. Class V cavities were made in bovine incisors and classified into nine groups according to the type of pulp-capping agent and final restoration. After immersion in 0.5% fuchsin solution, each specimen was observed with a stereoscopic microscope to score microleakage level. The crowns of the bovine incisors were implanted into acrylic resin, cut horizontally, and divided into three groups. TLC, BD and WMTA blocks were applied on dentine, and the shear bond strengths were measured using a universal testing machine. The microleakage was lowest in TLC + GIC, TLC + RMGI, TLC + CR, and BD + GIC groups and highest in WMTA + RMGI and WMTA + CR groups. The shear bond strength of BD group was the highest and that of WMTA group was significantly lower than the others.

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* 2022년 이후 발행 논문의 참고문헌은 현재 구축 중입니다.

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