PMID: 18705506Aug 19, 2008Paper

Observation on bonding interface of sclerotic dentin with confocal laser scanning microscope

Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
Yang Yu, Ru Wang

Abstract

To observe the bonding interface of sclerotic dentin after treated with total-etching system and self-etching system by confocal laser scanning microscope (CLSM). A total of 12 maxillary bicuspids with non-caries, natural cervical sclerotic lesions were divided into three groups. The sclerotic dentin was bonded with Single Bond (SB, total-etching adhesive), Clearfil SE Bond (CB, two-step self-etching) and Xeno III (XB, one-step self-etching) according to the manufacturer's instruction. Artificially prepared wedge-shaped lesions made in sound maxillary bicuspids and bonded with same adhesive were used as control. The primer component was labeled with Rhodamine B Isothiocyanate. Hybrid layer and resin tag of dentin bonding interface were observed by CLSM. Two-way ANVOA revealed significant influence of both the type of dentin and the bonding adhesive systems tested on resin tag and hybrid layer (P<0.05). Resin tag and hybrid layer in total-etching adhesive (SB) were longer and thicker than in self-etching adhesive (CB, XB) whatever in normal dentin or sclerotic dentin, while the resin tag and hybrid layer thickness were similar in two kind self-etching adhesive (P<0.05). The resin rags were fewer and shorter and the hybrid layers...Continue Reading

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