Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
J Dent. 2012 May;40(5):353-8. doi: 10.1016/j.jdent.2011.12.003. Epub 2011 Dec 9.
Silane primers are commonly used for bonding between resin-based luting agents and ceramic restorations. The purpose of the present study was to evaluate the effects of nine silane primers on the bond strength of resin to a leucite-reinforced ceramic.
The commercially available dental primers used were five silane primers (GC Ceramic Primer, GP; Clearfil Ceramic Primer, CP; Tokuso Ceramic Primer, TP; Porcelain Liner M, PM; and Monobond Plus, MB). Four experimental primers (MDS, MTS, MDS/MPII, and MTS/MPII) and two control primers (MMA and MMA/MPII) were also prepared. The ceramic specimen was ground with silicon carbide paper, primed, and then bonded to a resin composite disc using a dual-curing luting agent. After a 24-h immersion in water, the shear bond strengths were determined.
Shear bond testing revealed that the bond strength was significantly improved with the use of a MTS/MPII primer when compared to MDS, MTS, MMA, MDS/MPII and MMA/MPII. Although no significant differences were detected between GP, CP, PM, and MB, the primers CP, TP, PM, and MTS/MPII exhibited the highest bond strengths, followed by GP and MB, whilst the no-primer control resulted in the lowest values.
The maximum bond strengths were obtained with CP, TP, PM, and MTS/MPII. It was suggested that the thiophosphate monomer accelerated the role of the silane monomer. When selecting a primer to bond ceramic restorations, clinicians should be aware that not only the silane monomer but also additional components of the primer considerably affect the bond strength.
硅烷偶联剂通常用于树脂基水门汀和陶瓷修复体之间的粘结。本研究的目的是评估 9 种硅烷偶联剂对树脂与锂辉石增强陶瓷粘结强度的影响。
使用的市售牙科偶联剂有 5 种硅烷偶联剂(GC 陶瓷偶联剂、GP;Clearfil Ceramic Primer,CP;Tokuso Ceramic Primer,TP;Porcelain Liner M,PM;和 Monobond Plus,MB)。还制备了 4 种实验偶联剂(MDS、MTS、MDS/MPII 和 MTS/MPII)和 2 种对照偶联剂(MMA 和 MMA/MPII)。陶瓷试件用碳化硅砂纸打磨,涂偶联剂,然后用双固化水门汀粘结到树脂复合盘上。水浸泡 24 小时后,测定剪切粘结强度。
剪切粘结试验表明,与 MDS、MTS、MMA、MDS/MPII 和 MMA/MPII 相比,使用 MTS/MPII 偶联剂可显著提高粘结强度。虽然 GP、CP、PM 和 MB 之间没有显著差异,但 CP、TP、PM 和 MTS/MPII 表现出的粘结强度最高,其次是 GP 和 MB,而无偶联剂对照的粘结强度最低。
CP、TP、PM 和 MTS/MPII 获得的最大粘结强度。这表明硫代磷酸盐单体加速了硅烷单体的作用。在选择用于粘结陶瓷修复体的偶联剂时,临床医生应该意识到,不仅是硅烷单体,偶联剂的其他成分也会显著影响粘结强度。