Brackett Willliam W, Brackett Martha Goel, Dib Alejandro, Franco Guillermo, Estudillo Hugo
Department of Oral Rehabilitation, School of Dentistry, Medical College of Georgia, Augusta, GA, USA.
Oper Dent. 2005 Jul-Aug;30(4):424-9.
This study evaluated the clinical performance of unprepared Class V resin composites, placed using a self-etching primer and a single-bottle adhesive, over a period of 18 months. Thirty-eight pairs of restorations of Renew hybrid resin composite (BISCO, Inc) were placed using adhesives from the same manufacturer in caries-free cervical erosion/abfraction lesions. Based on insensitivity to air, the dentin in 76% of these lesions was considered to be sclerotic. The restorations were placed without abrasion of tooth surfaces, except for cleaning with plain pumice. One of each pair was placed using Tyrian, a self-etching primer and the other was placed using One-Step, a single-bottle adhesive placed after acid etching. Both the etchant and self-etching primer were applied for 20 seconds. The restorations were clinically evaluated at baseline, 6, 12 and 18 months, using modified Ryge/USPHS criteria. For both adhesives, very low retention of 50% to 56% of the restorations was observed over 18 months, leading to the conclusion that tooth surfaces must receive some additional treatment prior to restoration with these adhesives. No statistically significant difference (p=0.75) between the two adhesives was observed in overall performance, and dentinal sclerosis and axial depth did not appear to be important factors in the study.
本研究评估了使用自酸蚀底漆和单瓶粘结剂放置的未预备的V类树脂复合材料在18个月期间的临床性能。使用来自同一制造商的粘结剂，在无龋的颈部侵蚀/磨损病变中放置了38对Renew混合树脂复合材料（BISCO公司）修复体。基于对空气不敏感，这些病变中76%的牙本质被认为是硬化的。除了用普通浮石清洁外，修复体在未对牙齿表面进行打磨的情况下放置。每对中的一个使用Tyrian自酸蚀底漆放置，另一个使用酸蚀后放置的单瓶粘结剂One-Step放置。酸蚀剂和自酸蚀底漆均应用20秒。使用改良的Ryge/USPHS标准在基线、6个月、12个月和18个月时对修复体进行临床评估。对于两种粘结剂，在18个月期间观察到修复体的保留率非常低，为50%至56%，得出的结论是，在用这些粘结剂进行修复之前，牙齿表面必须接受一些额外的处理。在总体性能方面，两种粘结剂之间未观察到统计学上的显著差异（p = 0.75），并且牙本质硬化和轴向深度在该研究中似乎不是重要因素。
