MARGINAL SEALING OF AMALGAM RESTORATIONS USING DENTIN BONDING ADHESIVES

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Journal of the Korean Academy of Pediatric Dentistry 2002;29(1):57-68.
Published online February 28, 2002.

MARGINAL SEALING OF AMALGAM RESTORATIONS USING DENTIN BONDING ADHESIVES

아말감수복시 상아질접착제가 변연봉쇄에 미치는 영향

이상훈, 이긍호

경희대학교 치과대학 소아치과학교실

Abstract

The purpose of this study was to evaluate microleakage of etched and non-etched amalgam restorations lined with dentin bonding system primer and adhesives. Class V amalgam preparations were made in 100 extracted human premolars divided into 10 groups with 10 teeth each. SEM was taken to assess the dentin/amalgam interface. The results were as follows; 1. At the occlusal and gingival margins, all experimental groups showed lower leakage value than unlined group(p<0.05) The Copalite^®-lined group showed higher leakage value than other experimental groups(p<0.05). 2. In all experimental groups, the gingival margin showed higher leakage value than the occlusal margin. 3. There were no significant difference between non-etching and etching groups, primer only and primer & adhesive groups, primer & adhesive and self-priming adhesive groups(p>0.05). 4. On the SEM observation, continuous gaps were observed in the unlined and Copalite^®-lined groups, but the gaps were filled with primer or adhesive layer in other experimental groups.

Key Words: Marginal leakage, Marginal sealing, Primer, Adhesive, Copalite^®, Amalgam