Komine Futoshi, Kobayashi Kazuhisa, Saito Ayako, Fushiki Ryosuke, Koizumi Hiroyasu, Matsumura Hideo
Department of Fixed Prosthodontics, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan.
J Oral Sci. 2009 Dec;51(4):629-34. doi: 10.2334/josnusd.51.629.
The present study evaluated the shear bond strength between an indirect composite material and zirconium dioxide (zirconia) ceramics after thermocycling. A total of 80 zirconia (Katana) discs were divided into five groups and primed with one of following agents: All Bond 2 Primer B (ABB), Alloy Primer (ALP), AZ Primer (AZP), Estenia Opaque Primer (EOP), and Porcelain Liner M Liquid A (PLA). An indirect composite material (Estenia C&B) was then bonded to the primed zirconia. One-half of the specimens (n = 8) in each group were stored in distilled water at 37 degrees C for 24 h, and the remaining eight specimens were thermocycled 5,000 times before shear bond strength testing. Mean bond strengths before thermocycling varied from 10.1 to 15.6 MPa; bond strengths after thermocycling ranged from 4.3 to 17.6 MPa. The ALP group had the highest strengths after thermocycling; there were no significant differences among the PLA, AZP, and EOP groups. The bond strength values for PLA, AZP, EOP, and ALP did not decrease with thermocycling. The application of an acidic functional monomer containing carboxylic anhydride (4-META), phosphonic acid (6-MHPA), or phosphate monomer (MDP) provided durable bond strength between Estenia C&B indirect composite and Katana zirconia.
本研究评估了热循环后间接复合材料与二氧化锆（氧化锆）陶瓷之间的剪切粘结强度。总共80个氧化锆（Katana）圆盘被分为五组，并用以下一种试剂进行预处理：全粘结2号底漆B（ABB）、合金底漆（ALP）、AZ底漆（AZP）、Estenia不透明底漆（EOP）和瓷衬M液A（PLA）。然后将一种间接复合材料（Estenia C&B）粘结到预处理过的氧化锆上。每组中的一半试样（n = 8）在37℃的蒸馏水中储存24小时，其余八个试样在进行剪切粘结强度测试前进行5000次热循环。热循环前的平均粘结强度在10.1至15.6MPa之间；热循环后的粘结强度在4.3至17.6MPa之间。热循环后ALP组的强度最高；PLA、AZP和EOP组之间没有显著差异。PLA、AZP、EOP和ALP的粘结强度值不会随着热循环而降低。含有羧酸酐（4-META）、膦酸（6-MHPA）或磷酸单体（MDP）的酸性功能单体的应用在Estenia C&B间接复合材料和Katana氧化锆之间提供了持久的粘结强度。
