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

  • Journal of the Korean academy of pediatric dentistry
  • Abbr : J Korean Acad Pediatr Dent
  • 2019, 46(1), pp.76-84
  • DOI : 10.5933/JKAPD.2019.46.1.76
  • Publisher : The Korean Academy Of Pediatric Dentistry
  • Research Area : Medicine and Pharmacy > Dentistry
  • Received : July 23, 2018
  • Accepted : September 13, 2018
  • Published : February 28, 2019

Miri Kim 1 Wansun Jo 2 Jih Myeong-kwan 1 LEE, SANG-HO 1 LEE NAN YOUNG 1

1조선대학교
2조선대학교 치의학전문대학원 소아치과학교실

Accredited

ABSTRACT

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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