Department of Odontology, Faculty of Medicine, Umeå University, Umeå, Sweden.
J Dent. 2012 Dec;40(12):1060-7. doi: 10.1016/j.jdent.2012.08.017. Epub 2012 Sep 3.
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.
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.
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.
The single-step self-etching adhesive showed acceptable clinical long-time retention rates to dentine surfaces independent of restorative material and curing technique used.
本研究旨在评估一步法自酸蚀粘结剂（Xeno III）在非龋性颈壁 V 类缺损中的临床保留情况，以及修复材料和固化技术对修复体寿命的影响。
共对 139 例非龋性颈壁 V 类缺损不涉及牙釉质的患者进行修复，采用自酸蚀底漆 Xeno III 与树脂复合材料（Tetric Ceram）或多酸改性树脂复合材料（Dyract AP）。采用传统连续光、软启动或脉冲延迟固化模式固化材料。修复体在基线、6、12、18 和 24 个月进行评估，然后在 7 年的随访期间每年进行评估，采用改良 USPHS 标准进行评估。通过丢失修复体的百分比确定牙本质粘结效率。
在 7 年的随访期间，共对 135 例修复体进行了评估。研究对象均未报告术后敏感。在不考虑固化技术和修复材料的情况下，6 个月和 18 个月以及 7 年时，粘结系统的总相对累积损失率分别为 0.8%、6.9%和 23.0%。自酸蚀粘结剂在 18 个月时满足 ADA 完全接受标准。7 年后，Tetric Ceram 的保留率损失为 20.9%，Dyract AP 的保留率损失为 25.0%（Log rank p = 0.48）。3 种固化技术的损失率分别为连续光、软启动和脉冲延迟光 17%、27.9%和 24.4%（Log rank p = 0.52）。未观察到继发龋。
一步法自酸蚀粘结剂在不考虑使用的修复材料和固化技术的情况下，对牙本质表面具有可接受的长期临床保留率。
