대한소아치과학회지 (Journal of the korean academy of Pediatric Dentistry)
- 제26권4호
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- Pages.595-607
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- 1999
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- 1226-8496(pISSN)
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- 2288-3819(eISSN)
자가부식 프라이머의 처리가 유치의 상아질과 레진 간의 결합 형태와 강도에 미치는 효과
EFFECT OF SELF-ETCHING PRIMER APPLICATION ON THE CHARACTERISTICS & STRENGTH OF DENTIN BONDING IN PRIMARY TOOTH
- Lee, Jun-Haeng (Department of Pediatric Dentistry, College of Dentistry, Dankook University) ;
- Kim, Yong-Kee (Department of Pediatric Dentistry, College of Dentistry, Dankook University) ;
- Kim, Jong-Soo (Department of Pediatric Dentistry, College of Dentistry, Dankook University)
- 발행 : 1999.11.30
초록
본 연구의 목적은 최근 술식을 간소화 시켜 개발된 여러 가지 자가 부식 프라이머를 이용하여 유치에서의 상아질과 레진 간의 결합력을 측정하고, 그 결합의 양상을 주사 전자 현미경을 이용해 분석하기 위함이었다. 실험 재료로는 자가-부식 프라이머를 이용한 새로운 결합제인 Mac-bond
The purpose of this in vitro study was to evaluate the efficacy of self-etching primer which was developed to simplify the bonding procedures by measuring the shear bond strength and observing the interfacial morphology. 90 flat dentinal surfaces were prepared by grinding the buccal and lingual areas of caries-free human deciduous molars. After bonding of composite resin to sample surfaces according to the manufacturer's direction and thermocycling, shear bond strengths were measured using Universal testing machine(Instron). Another groups of specimens were treated by hydrochloric acid to secure the resin only and those tags were evaluated under SEM for their length and forms and the morphology of the bonding sites were also observed. The result as follows. 1. Group III showed higher shear bond strength than group I and II but no statistically significant difference was founded between group I and II(p>.05). 2. Adhesive failure was predominant in group II whereas dentin detachment was the main failure pattern in group I and III. 3. Relating long resin tags of