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首页> 外文期刊>The Journal of Prosthetic Dentistry >Clinical evaluation of two adhesive composite cements for the suppression of dentinal cold sensitivity.
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Clinical evaluation of two adhesive composite cements for the suppression of dentinal cold sensitivity.

机译：两种粘合复合胶粘剂抑制牙本质冷敏感性的临床评价。

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Statement of Problem. Postoperative cold sensitivity after the cementation of indirect restorations with composite cements has been reported frequently but not scientifically documented. Purpose. This controlled clinical study was designed to simulate the dentin/composite cement interface immediately after cementation of a cast restoration. The desensitizing capabilities of a composite cement that contains a self-etching, dual-polymerizing resin adhesive system were compared with those of a composite cement that use phosphoric acid etching followed by a single-bottle, light-activated primer/resin-based adhesive. Material and Methods. The hypersensitive root surfaces of selected teeth were randomized to receive 1 of 3 treatments: coating with a self-etching adhesive (Linkmax) and its respective cement, coating with a conventionally etched adhesive (RelyX ARC) and its cement, or no treatment (negative control). The sample size was 22. Dentin sensitivity was ascertained with an accurate cold testing device that slowly decreased in temperature. Tooth sensitivity was measured both immediately and at 7 days after placement. Two-way analysis of variance and Fisher's least significant difference test (P<.05) were used to determine whether significant differences existed as a function of treatment type or time. Results. Immediately after placement, the self-etching adhesive and its respective cement resulted in more suppression of cold sensitivity than no treatment (control); with Linkmax treatment, the temperature at which teeth responded was reduced by 8.4 degrees C. The conventionally etched adhesive and its cement reduced the temperature at which teeth responded by 9.4 degrees C. After 1 week, these temperature reductions were 7.0 degrees C and 4.3 degrees C, respectively. Untreated controls at the 2 intervals showed a mean decrease in sensitivity to cold of 3.6 degrees C and 4.1 degrees C. Statistical analysis showed type of composite cement to be a significant factor. Conclusion. Within the limitations of this study and in comparison to untreated control teeth, Linkmax treatment resulted in a significant reduction in tooth root sensitivity over 1 week (P=.02), whereas RelyX ARC did not (P=.066).
机译：问题陈述。间接报道了用复合水泥固结间接修复体后的术后冷敏感性，但尚未有科学文献记载。目的。这项受控的临床研究旨在模拟铸件修复体胶结后立即模拟牙本质/复合胶结界面。将包含自蚀刻，双聚合树脂粘合剂体系的复合水泥的脱敏能力与使用磷酸蚀刻后再加单瓶，光活化底漆/树脂基粘合剂的复合水泥的脱敏能力进行了比较。材料与方法。选定牙齿的过敏性牙根表面随机接受以下3种治疗方法中的一种：使用自蚀刻粘合剂（Linkmax）及其相应的骨水泥涂层，用常规蚀刻的粘合剂（RelyX ARC）及其骨水泥涂层，或不进行任何处理（负片）控制）。样本大小为22。使用温度缓慢降低的精确的冷测试设备可以确定牙本质的敏感性。立即和放置后7天测量牙齿敏感性。方差的双向分析和Fisher最低显着性差异检验（P <.05）用于确定是否存在显着性差异作为治疗类型或治疗时间的函数。结果。与未处理（对照）相比，放置后立即使用自蚀刻胶粘剂及其各自的胶粘剂对冷敏性的抑制作用更大。使用Linkmax处理后，牙齿的响应温度降低了8.4摄氏度。常规蚀刻的粘合剂及其胶结剂使牙齿的响应温度降低了9.4摄氏度。1周后，这些温度分别降低了7.0摄氏度和4.3摄氏度C分别。在两个时间间隔内未处理的对照显示对寒冷的敏感性平均降低了3.6摄氏度和4.1摄氏度。统计分析表明，复合水泥的类型是一个重要因素。结论。在本研究的范围内，与未经处理的对照牙齿相比，Linkmax治疗导致超过1周的牙根敏感性显着降低（P = .02），而RelyX ARC则没有（P = .066）。

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