Cekic-Nagas Isil, Egilmez Ferhan, Ergun Gulfem, Vallittu Pekka Kalevi, Lassila Lippo Veli Juhana
Department of Prosthodontics, Faculty of Dentistry, Gazi University.
Department of Biomaterials Science and Turku Clinical Biomaterials Center -TCBC, Institute of Dentistry, University of Turku.
Dent Mater J. 2018 Jan 30;37(1):49-58. doi: 10.4012/dmj.2016-367. Epub 2017 Oct 27.
To evaluate the influence of different materials on the load-bearing-capacity of inlay-retained fixed-dental-prosthesis (FDP). Ten types of FDPs were evaluated (n=7/group): Group PEEK: CAD-CAM polyetheretherketone (PEEK-TechnoMed), Group RC, made of discontinuous-fiber-composite (EverX Posterior); Group FRC1, made of discontinuous-fiber-composite (EverX Posterior) with two-bundles of continuous-unidirectional fiber-reinforced-composite (FRC) (Everstick C&B); Group FRC2, made of discontinuous-fiber-composite (EverX Posterior) with two-bundles of continuous-unidirectional-FRC (Everstick C&B) covered by two-pieces of short-unidirectional-FRC (Everstick C&B) placed perpendicular to the main-framework; Group FB, CAD-CAM fiber-block (Fibra-Composite Bio-C); Group PMMA, CAD-CAM polymethyl methacrylate block (Temp basic); Group RP, resin-paste; Group FRP1, made of resin-paste (G-Fix) with two-bundles of continuous-unidirectional-FRC (Everstick C&B); Group FRP2, made of resin-paste (G-Fix) two-bundles of continuous-unidirectional-FRC covered by two-pieces of short unidirectional-FRC placed perpendicular to the main-framework and Group exp-FRC, experimental CAD-CAM FRC. The bridges were statically-loaded until fracture. Fracture modes were visually examined. ANOVA revealed that significant differences were observed between FDP-materials (p<0.05). In addition, fiber addition to the framework significantly affected load-bearing-capacity (p<0.05).
评估不同材料对嵌体固位固定义齿（FDP）承载能力的影响。评估了十种类型的FDP（每组n = 7）：聚醚醚酮（PEEK）组：计算机辅助设计与制造（CAD-CAM）聚醚醚酮（PEEK-TechnoMed）；RC组，由间断纤维复合材料制成（EverX Posterior）；FRC1组，由间断纤维复合材料（EverX Posterior）与两束连续单向纤维增强复合材料（FRC）（Everstick C&B）制成；FRC2组，由间断纤维复合材料（EverX Posterior）与两束连续单向FRC（Everstick C&B）制成，并用两片垂直于主框架放置的短单向FRC（Everstick C&B）覆盖；FB组，CAD-CAM纤维块（Fibra-Composite Bio-C）；PMMA组，CAD-CAM聚甲基丙烯酸甲酯块（Temp basic）；RP组，树脂糊剂；FRP1组，由树脂糊剂（G-Fix）与两束连续单向FRC（Everstick C&B）制成；FRP2组，由树脂糊剂（G-Fix）与两束连续单向FRC制成，并用两片垂直于主框架放置的短单向FRC覆盖；exp-FRC组，实验性CAD-CAM FRC。对桥体进行静态加载直至断裂。通过肉眼检查骨折模式。方差分析显示，FDP材料之间存在显著差异（p<0.05）。此外，向框架中添加纤维对承载能力有显著影响（p<0.05）。
