Ebert Agnes, Hedderich Juergen, Kern Matthias
Department of Prosthodontics, Propaedeutics and Dental Materials, Dental School, Christian-Albrechts-University, Kiel, Germany.
Int J Oral Maxillofac Implants. 2007 Nov-Dec;22(6):921-7.
The aim of this study was to evaluate the effect of 2 surface conditioning methods and 2 luting-gap sizes on the retention and durability of zirconia ceramic copings bonded to titanium abutments.
Zirconia ceramic copings (Camlog Biotechnologies, Winsheim, Germany) with a luting-gap size of either 30 microm or 60 microm were bonded to titanium abutments (Camlog Biotechnologies) using the composite resin cement Panavia F (Kuraray, Osaka, Japan). The bonding surfaces of the zirconia ceramic copings were either (a) pretreated with airborne particle abrasion and cleaned with alcohol or (b) just cleaned with alcohol, whereas the bonding surfaces of all titanium abutments had been abraded and cleaned. After the specimens had been stressed for either 1, 30, 60, or 150 days by water and thermal cycling, retention was measured.
The surface conditioning method, luting-gap size, and storage time significantly (P = .001; 3-way analysis of variance [ANOVA]) influenced retention. Air abrasion increased the retention significantly. Failure modes were predominantly adhesive. Air-abraded copings bonded with 30-microm luting gap achieved significantly greater retention than those bonded with a 60-microm luting gap.
Surface conditioning methods and the size of the luting gap have a significant influence on the retention of Camlog zirconia ceramic copings bonded to Camlog titanium abutments.
本研究旨在评估两种表面处理方法和两种粘结间隙尺寸对氧化锆陶瓷冠粘结于钛基台上的固位力和耐久性的影响。
使用复合树脂粘结剂Panavia F（日本大阪可乐丽公司）将粘结间隙尺寸为30微米或60微米的氧化锆陶瓷冠（德国温斯海姆卡姆洛格生物技术公司）粘结到钛基台（卡姆洛格生物技术公司）上。氧化锆陶瓷冠的粘结面要么（a）采用空气颗粒研磨预处理并用酒精清洁，要么（b）仅用酒精清洁，而所有钛基台的粘结面均已进行研磨和清洁。在通过水和热循环对样本施加1天、30天、60天或150天的应力后，测量固位力。
表面处理方法、粘结间隙尺寸和储存时间对固位力有显著影响（P = .001；三因素方差分析[ANOVA]）。空气研磨显著提高了固位力。失效模式主要为粘结性。与60微米粘结间隙的相比，采用30微米粘结间隙粘结的经空气研磨的冠获得的固位力显著更高。
表面处理方法和粘结间隙尺寸对卡姆洛格氧化锆陶瓷冠粘结于卡姆洛格钛基台上的固位力有显著影响。
