Abstract
Endodontic irrigants negatively influence the physical properties of dentine. The effect of sodium hypochlorite and ethylenediaminetetraacetic acid (EDTA) on the bond strength to dentine was investigated in a systematic review. Inclusion criteria were the following: a microtensile or microshear test, the irrigants sodium hypochlorite and/or EDTA, an irrigation time of ≥ 5 minutes of sodium hypochlorite, an irrigation protocol for endodontic treatment, human dentine, the presence of a control group and no post space preparation. Of the 188 eligible articles, 13 were suitable for inclusion. There was strong evidence that rinsing with sodium hypochlorite and also additional rinsing minutes with ethylenediaminetetraacetic acid leads to minimum bond strength to dentin for a two-step self-etching adhesive. For a two-step etch-and-rinse adhesive, the bond strength is approximately significant after rinsing with sodium hypochlorite (rinsing time: 10-60 minutes).
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