Schulz Ansgar-Christian, Othman Ahmed, Ströbele Dragan-Alexander, Wagner Juliane, Mosch Richard, von See Constantin
Research Center for Digital Technologies in Dentistry and CAD/CAM, Department of Dentistry, Faculty of Medicine and Dentistry, Danube Private University, 3500 Krems, Austria. Steiner Landstraße 124, 3500 Krems, Austria.
Assistant Professor Research Center for Digital Technologies in Dentistry and CAD/CAM, Department of Dentistry, Faculty of Medicine and Dentistry, Danube Private University, 3500 Krems, Austria. Steiner Landstraße 124, 3500 Krems, Austria.
J Clin Exp Dent. 2023 Feb 1;15(2):e118-e124. doi: 10.4317/jced.60173. eCollection 2023 Feb.
Purpose of this study was to investigate the mechanical efficiency of 3D-printed permanent and provisional implant cemented fixed bridges produced via CAD/CAM technology using an interim and a permanent ceramic filled hybrid material.
Two groups with twenty specimens each were designed and 3D-printed via digital light processing technology (DLP). A fracture strength test was performed. Statistical analysis was performed (>0.05) for impression distance and force.
For the fracture resistance and impression distance no significant difference ( = 0.643) were detected. The specimens of interim resin showed a mean value of 365.90 ± 86.67 N. Whereas specimens of permanent ceramic filled hybrid material showed a mean value of 363.45 ± 87.57 N.
In this study 3D-printed ceramic filled hybrid material and interim resin based on methacrylic acid esters showed an acceptable resistance to bite forces with no differences in fracture mechanism. CAD-CAM, dental resin, 3D printing.
本研究的目的是研究使用临时和永久性陶瓷填充混合材料，通过CAD/CAM技术制作的3D打印永久性和临时性种植体粘结固定桥的机械效率。
设计两组，每组20个样本，通过数字光处理技术（DLP）进行3D打印。进行了断裂强度测试。对压痕距离和力进行了统计学分析（>0.05）。
对于抗断裂性和压痕距离，未检测到显著差异（=0.643）。临时树脂样本的平均值为365.90±86.67N。而永久性陶瓷填充混合材料样本的平均值为363.45±87.57N。
在本研究中，3D打印的陶瓷填充混合材料和基于甲基丙烯酸酯的临时树脂显示出可接受的咬合力抗性，在断裂机制上没有差异。CAD-CAM、牙科树脂、3D打印。
