Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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THE EFFECTS OF COLLAGENASE AND ESTERASE ON THE MICROTENSILE BOND STRENGTH IN DENTIN BONDING

상아질 접착에서 collagenase와 esterase가 미세인장결합강도에 미치는 영향

  • Jung, Young-Jung (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
  • Hyun, Hong-Keun (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
  • Kim, Young-Jae (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
  • Kim, Jung-Wook (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
  • Lee, Sang-Hoon (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
  • Kim, Chong-Chul (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
  • Hahn, Se-Hyun (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
  • Jang, Ki-Taeg (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University)
  • 정영정 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
  • 현홍근 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
  • 김영재 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
  • 김정욱 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
  • 이상훈 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
  • 김종철 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
  • 한세현 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
  • 장기택 (서울대학교 치과대학 소아치과학교실 및 치학연구소)
  • Published : 2007.05.31
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Abstract

The purpose of this study was to evaluate the effect of collagenase and esterase on the microtensile bond $strength({\mu}TBS)$ in dentin bonding. After resin composites were bonded to occlusal dentin. ${\mu}TBS$ specimens were formed and stored in PBS, collagenase, or esterase solution After 4-week storage, ${\mu}TBS$ was determined and, the results were as follows : 1. ${\mu}TBS$ values of Single Bond 2 were lower than those of Clearfil SE Bond for all storage medium (p<0.05). 2. In Single Bond 2 group, collagenase solution lowered bond strength more than PBS and esterase solution (p>0.05). 3. In Clearfil SE Bond group, esterase solution lowered bond strength more than PBS(p>0.05). Collagenase solution lowered bond strength more than esterase solution(p>0.05) and PBS(p<0.05).

상아질-레진 접착강도에 대한 collagenase와 esterase의 영향을 살펴보기 위해, 소구치의 교합면 상아질에 Single Bond 2와 Clearfil SE Bond로 접착을 시행하고 미세 시편을 제작하여 PBS collagenase 용액, esterase 용액에 4주간 보관한 후 미세인장결합강도를 측정, 비교하여 다음과 같은 결론을 얻었다. 1. 모든 보관 용액에서 Single Bond 2의 미세인장결합강도는 Clearfil SE Bond보다 유의하게 낮았다(p<0.05). 2. Single Bond 2의 미세인장결합강도는 collagenase군이 PBS군, esterase군보다 낮았다(p>0.05). 3. Clearfil SE Bond의 미세인장결합강도는 esterase군이 PBS군에 비해 낮았으나(p>0.05), collagenase군보다는 높았다(p>0.05). Collagenase군은 PBS군에 비해 유의하게 낮은 미세인장결합강도를 보였다(p<0.05).

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