Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Shear Bond Strength Comparison of Different Adhesive Systems to Calcium Silicate-based Materials

Calcium Silicate-based 재료에 대한 수 종 상아질 접착제의 전단결합강도 비교

  • Shin, Hyunok (Department of Pediatric Dentistry, Kyung Hee University Dental Hospital at Gangdong) ;
  • Kim, Misun (Department of Pediatric Dentistry, Kyung Hee University Dental Hospital at Gangdong) ;
  • Nam, Okhyung (Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University) ;
  • Lee, Hyoseol (Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University) ;
  • Choi, Sungchul (Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University) ;
  • Kim, Kwangchul (Department of Pediatric Dentistry, Kyung Hee University Dental Hospital at Gangdong)
  • 신현옥 (강동경희대학교병원 치과병원 소아치과) ;
  • 김미선 (강동경희대학교병원 치과병원 소아치과) ;
  • 남옥형 (경희대학교 치의학전문대학원 소아치과학교실) ;
  • 이효설 (경희대학교 치의학전문대학원 소아치과학교실) ;
  • 최성철 (경희대학교 치의학전문대학원 소아치과학교실) ;
  • 김광철 (강동경희대학교병원 치과병원 소아치과)
  • Received : 2018.03.20
  • Accepted : 2018.05.04
  • Published : 2018.11.30
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Abstract

The aim of this study was to measure the shear bond strength (SBS) of different adhesive systems to calcium silicate-based materials (Biodentine and RetroMTA). Eighty cylindrical acrylic blocks, with a hole (5.0 mm diameter, 2.0 mm height) in each, were prepared. The holes were filled with Biodentine (BD) and RetroMTA (RMTA), and the specimens were divided into 2 groups. Each group was classified into 4 subgroups: Clearfil$^{TM}$ SE (CSE) ; AQ bond (AQ) ; All bond universal Self-etch (ABU-SE) ; and All bond universal Total-etch (ABU-TE). After the application of different adhesive systems, composite resin (Z350) was applied over BD and RMTA. The SBS was measured using a universal testing machine, and the data were compared using the Kruskal-Wallis test and the Mann-Whitney test. The highest and lowest values of SBS were observed for BD-ABU-SE and RMTA-AQ, respectively. No significant differences were found in the SBS between ABU-TE and ABU-SE and between ABU-TE and CSE to BD and RMTA. According to the data, BD showed a higher SBS than did RMTA when BD and RMTA are compared in the same adhesive agents. Further, among all groups, composite resin with ABU-SE showed better bond strength to BD and RMTA.

이 연구의 목적은 Calcium silicate를 기반으로 한 2종의 치수복조재 (Biodentine, RetroMTA)와 임상에서 사용되는 여러 가지 상아질 접착제 간의 전단결합강도를 비교 평가하는 것이다. 중심구를 가진 아크릴 레진 블록 80개를 제작하고 2그룹으로 나누어 Biodentine (BD)과 RetroMTA (RMTA)를 중심구 안에 채운 후, 무작위로 10개씩 4개의 하위군을 나누어 재료 상방에 4가지 상아질 접착제인 Clearfill SE (CSE), AQ bond plus (AQ), All bond universal (ABU) 자가부식, ABU 일괄부식을 도포한 뒤 그 위에 복합레진을 적용하였다. Universal testing machine을 이용해 전단결합 강도를 측정하였다. 통계분석은 Kruskal-Wallis를 사용하였고 Mann-Whitney의 사후검정을 하였다. 연구결과, BD - ABU 자가부식군이 가장 높은 전단결합강도를, RMTA - AQ 군이 가장 낮은 전단결합강도를 보였다. ABU 일괄부식과 ABU 자가부식군, ABU 일괄부식과 CSE 간의 유의미한 차이는 보이지 않았다. 또한 같은 상아질접착제 적용 시, BD가 RMTA보다 높은 전단결합강도를 보였다. 또한, BD와 RMTA 그룹 군에서 ABU 자가부식군 도포 후, 레진 적용했을 때 향상된 전단결합강도를 보였다.

Keywords

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