Influence of adhesive systems on microtensile bond strength of resin-based endodontic sealers to the root dentin

摘要

Objective: The aim of this study was to determine the microtensile bond strength to root dentin of AH PlusTM and\udEndoREZ®\udwith Clearfil Liner Bond 2V and Optibond SoloTM Plus adhesive systems.\udStudy Design: The coronal and middle thirds of six single rooted bovine teeth was split longitudinally in a mesio-\uddistal direction. The two halves were joined with AH Plus or EndoREZ, with and without the use of Clearfil Li\ud-\udner Bond 2V and Optibond SoloTM Plus adhesive systems. Build-ups were vertically sectioned into quadrangular\ud(?1mmx1mm) compound bars and subjected to tensile tests at a constant crosshead speed (1 mm/min) until debon\ud-\udding.\udResults: Optibond\ud®\udSolo PlusTM in combination with AH PlusTM and EndoREZ\ud®\udshowed the highest mean micro\ud-\udtensile bond strength values, in both coronal and middle thirds. The lowest results were seen in the groups where no\uddentine adhesive was applied, and in those where the self-etching adhesive Clearfil Liner Bond 2V\udwas used.\udConclusion: The microtensile bond strength to root dentin of AH PlusTM and EndoREZ may be increased with the\uduse of a total-etch adhesive.