Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지

INTERFACIAL MORPHOLOGY BETWEEN DENTIN AND ADHESIVES ACCORDING TO TREATMENT OF DENTIN SURFACE OF CERVICAL ABRASION LESION

치경부 마모병소의 상아질 표면처리 방식에 따른 상아질과 접착제 간의 계면 양상

  • Lee, Yong-Hee (Department of Conservative Dentistry, College of Dentistry, Pusan National University) ;
  • Lee, Hee-Joo (Department of Conservative Dentistry, College of Dentistry, Pusan National University) ;
  • Hur, Bock (Department of Conservative Dentistry, College of Dentistry, Pusan National University)
  • 이용희 (부산대학교 치과대학 치과보존학교실) ;
  • 이희주 (부산대학교 치과대학 치과보존학교실) ;
  • 허복 (부산대학교 치과대학 치과보존학교실)
  • Published : 2001.01.01
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Abstract

In order to know the effect of dentin bonding agents on the restoration of cervical abrasion, Scotchbond Multipurpose Single Bond and Clearfil Liner Bond 2 were used in 51 teeth with abrasion lesion and normal teeth. The surface structure and dentinal tubules of acid etched dentin and resin replica were examined using scanning electron microscopy. The interfacial morphology between dentin and adhesives was investigated by confocal laser scanning microscopy. Following results were obtained. 1. The hybrid layer and resin tag of the dentin showing cross-sectional surface of dentinal tubules are thicker and longer than those of dentin showing oblique surface of dentinal tubules. 2. The sclerotic cast was frequently observed in dentinal tubule, and the cast looked like cuboidal or rhomboidal-shaped crystals clumped from outer side to inner side. 3. The formation of hybrid layer and resin tag was the most prominent in Scotchbond Multipurpose group, whereas Clearfil Liner Bond 2 group showed very poor formation. The formation of hybrid layer and resin tag in Single Bond group was less than Scotchbond Multipurpose group.

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