en ترمیمی Cosmetic and Restorative Dentistry پژوهشي Research <p> <strong>Objective</strong> The aim of this study was to evaluate the clinical retention of a one-step self-etching adhesive system (Xeno III) in Class V non-carious cervical lesions and the effect of restorative material and curing techniques on longevity of the restorations. </p><p> <strong>Materials and methods</strong> A total of 139 Class V restorations were placed with the self-etching primer Xeno III and a resin composite (Tetric Ceram) or a poly-acid modified resin composite (Dyract AP) in non-carious cervical lesions without intentional enamel involvement. The materials were cured with a conventional continuous light, a soft-start or a pulse-delay curing mode. The restorations were evaluated at baseline, 6, 12, 18 and 24 months and then yearly during a 7 year follow-up with modified USPHS criteria. Dentine bonding efficiency was determined by the percentage of lost restorations. </p><p> <strong>Results</strong> During the 7 years, 135 restorations could be evaluated. No post-operative sensitivity was reported by the participants. Overall relative cumulative loss rate frequencies for the adhesive system at 6 and 18 months and 7 years, independent of curing technique and restorative material, were 0.8%, 6.9% and 23.0%, respectively. The self-etching adhesive fulfilled at 18 months the full acceptance ADA criteria. Tetric Ceram showed at 7 years a 20.9% loss of retention and Dyract AP a 25.0% loss rate (Log rank p=0.48). The loss rates for the 3 curing techniques: continuous, soft start and pulse delay were 17%, 27.9% and 24.4%, respectively (Log rank p=0.52). No secondary caries was observed. </p><p> <strong>Significance</strong> The single-step self-etching adhesive showed acceptable clinical long-time retention rates to dentine surfaces independent of restorative material and curing technique used. </p><hr><p></p><p> <strong>Source: </strong>Journal of Dentistry </p><p> <a href="http://www.jodjournal.com/article/S0300-5712(12)00235-7/abstract"><font color="#0033ff">Full Text</font></a> </p> Adhesion, Clinical, Curing techniques, Dental material, Resin composite, Restoration, Self-etch 0 0 http://idai.ir/browse.php?a_code=A-10-32-825&slc_lang=en&sid=1 Jan W.V van Dijken 10031947532846003606 10031947532846003606 Yes Department of Odontology, Faculty of Medicine, Umeå University, Umeå, Sweden Ulla Pallesen 10031947532846003607 10031947532846003607 No School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark