치질에 접착된 자가 산부식 프라이머와 자가 산부식 접착제의 형태학적 양상 = MORPHOLOGICAL PATTERNS OF SELF-ETCHING PRIMERS AND SELF-ETCHING ADHESIVE BONDED TO TOOTH STRUCTURE

다국어 초록 (Multilingual Abstract)

The purpose of this study was to compare in vitro interfacial relationship bonded with three self-etching primer adhesives and one self-etching adhesive.
Class I cavity preparations were prepared on twenty extracted human molars. Prepared teeth were divided into four groups and restored with four adhesives and composites: Clearfil SE Bond/Clearfil^™ AP-X (SE), UniFil Bond/UniFil® F (UF), FL Bond/Filtek^™ Z 250 (FL) and Prompt L-Pop/Filtek^™ Z 250 (LP)
After storing in distilled water of room temperature for 24 hours, the specimens were vertically sectioned and decalcfied, Morphological pattern between the enamel/dentin and adhesives were observed under SEM.
The results of this study were as follows;
1. They showed close adaptation between enamel and SE, UF and FL except for LP.
2. The hybrid layer in dentin was 2 ㎛ thick in SE, 1.5 ㎛ thick in UF, and 0.4 ㎛ in both FL and LP. So, the hybrid layers of SE and UF were slightly thicker than that of FL and LP.
3. The lengths and diameters of resin tages in UF and FL were similar, but those of LP were slightly shorter and slenderer than those of SE.
4. The resin tags were long rod shape in SE, and funnel shape in other groups.
Within the limitations of this study, it was concluded that self-etching primer adhesives showed close adaptation on enamel. In addition, the thickness of hybrid layer ranged from 0.4-1.5 ㎛ between adhesives and dentin. The resin tags were long rod or funnel shape, and dimension of them was similar or different among adhesives.