Sasse M, Kern M
Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University at Kiel, Germany.
Int J Comput Dent. 2013;16(2):109-18.
This study evaluated the clinical outcome of CAD/CAM zirconia-ceramic resin-bonded fixed dental prostheses (RBFDPs) with a cantilevered single-retainer design.
Thirty anterior zirconia-ceramic RBFDPs fabricated with the Cerec CAD/CAM system were inserted using either a phosphate monomer containing resin (Panavia 21 TC; N = 16) or an adhesive bonding system with a phosphoric acid acrylate primer (Multilink-Automix with Metal/Zirconia primer; N = 14).
During a mean observation time of 64.2 months, one debonding occurred in each group. Both RBFDPs could be rebonded successfully resulting in a five-year survival rate of 100%.
Independent of the bonding system, cantilevered zirconia-ceramic RBFDPs showed promising results during the first five years. (ClinicalTrials.gov Identifier: NCT01411592).
Single-retainer zirconia ceramic RBFDPs present an alternative treatment option offering good esthetics, a minimally invasive preparation, a high biocompatibility and can even be used to treat juvenile patients who do not yet come into consideration for implant placement. No significant influence of the bonding system used has been detected so far.
本研究评估了采用悬臂单固位体设计的CAD/CAM氧化锆陶瓷树脂粘结固定义齿（RBFDPs）的临床效果。
使用Cerec CAD/CAM系统制作了30颗前牙氧化锆陶瓷RBFDPs，分别采用含磷酸盐单体的树脂（Panavia 21 TC；n = 16）或含磷酸丙烯酸酯底漆的粘结系统（Multilink-Automix与金属/氧化锆底漆；n = 14）进行粘结。
在平均64.2个月的观察期内，每组均发生1次脱粘。两颗RBFDPs均成功重新粘结，5年生存率为100%。
在前五年中，悬臂式氧化锆陶瓷RBFDPs无论采用何种粘结系统均显示出良好的效果。（ClinicalTrials.gov标识符：NCT01411592）
单固位体氧化锆陶瓷RBFDPs提供了一种替代治疗方案，具有良好的美观性、微创预备、高生物相容性，甚至可用于尚未考虑种植修复的青少年患者。目前尚未发现所用粘结系统有显著影响。
