Casselli Denise Sá Maia, Martins Luis Roberto Marcondes
Department of Restorative Dentistry, School of Dentistry, Piracicaba, University of Campinas (UNICAMP), Brazil.
J Adhes Dent. 2006 Feb;8(1):53-8.
This study evaluated the postoperative sensitivity of posterior Class I composite resin restorations, restored with a self-etching or a total-etch one-bottle adhesive system.
One hundred four restorations were replaced by one clinician in 52 patients. Each patient received two restorations. After cavity preparations were completed under rubber-dam isolation, they were restored using Clearfil SE Bond or Single Bond and a resin-based restorative material (Filtek Z250). Sensitivity was evaluated at 0 and 7 days and 6 months using cold stimuli, and recorded using a visual analogue scale. If sensitivity was experienced on day 7, patients were also contacted on days 14 and 30 to assess the degree of sensitivity. The scores were analyzed as nonparametric data by means of the Friedman and Wilcoxon tests.
No statistically significant differences in sensitivity were found between the two adhesives systems at days 0 and 7 or at 6 months. No spontaneous postoperative sensitivity was reported.
The adhesives systems used in this study showed no differences in postoperative sensitivity, and did not show spontaneous sensitivity after 6 months.
本研究评估了使用自酸蚀或全酸蚀单瓶粘结系统修复的Ⅰ类后牙复合树脂修复体的术后敏感性。
52例患者的104颗修复体由一名临床医生进行更换。每位患者接受两颗修复体。在橡皮障隔离下完成窝洞预备后，使用Clearfil SE Bond或Single Bond以及树脂基修复材料（Filtek Z250）进行修复。在0天、7天和6个月时使用冷刺激评估敏感性，并使用视觉模拟量表进行记录。如果在第7天出现敏感症状，还会在第14天和第30天联系患者以评估敏感程度。通过Friedman和Wilcoxon检验将分数作为非参数数据进行分析。
在第0天、7天或6个月时，两种粘结系统之间的敏感性没有统计学上的显著差异。未报告有自发性术后敏感症状。
本研究中使用的粘结系统在术后敏感性方面没有差异，并且在6个月后未表现出自发性敏感症状。
