Başaran, Emine GöncüAktaş, GülizVallittu, Pekka KaleviLassila, Lippo Veli JuhanaTuncer, Cudi Mehmet2021-08-272021-08-272020Başaran, E. G., Aktaş, G., Vallittu, P. K., Lassila, L. V. J. ve Tuncer, C. M. (2020). Scanning electron microscopy assessment of the load-bearing capacity of cad/cam-fabricated molar crowns. Brazilian Oral Research, 34, e035.1806-8324https://www.scielo.br/j/bor/a/XPLvHFjsYnQjJh3X4c6PHqS/?lang=enhttps://hdl.handle.net/11468/7400WOS:000651319100001PMID: 32321053Although fiber-reinforced composites are commonly used in dental practice, whether fiber-reinforced crowns and fixed partial dentures can be used as definitive prostheses remains to be determined. This study used scanning electron microscopy to evaluate the load-bearing capacity of non-reinforced and fiber-reinforced composite (FRC) molar crowns prepared by computer-aided design/computer-aided manufacturing (CAD/CAM). The crowns were fabricated from three empirical FRC blocks, one empirical composite block, and one commercial ceramic block. The FRC resin was prepared by mixing BaO silicate particles, E-glass fiber, and dimethacrylate resin. Specimens were divided into five groups (n = 10), differing in the amounts of filler, resin, and fiber. Crowns were statically loaded until fracture. One-way analysis of variance and Tukey's post hoc multiple comparison tests were used for statistical analyses. The groups showed significant differences in load-bearing capacity; empirical bidirectional FRC resin blocks had the highest capacity, while commercial ceramic blocks had the lowest capacity. Molar crowns formed from FRC resin blocks had higher load-bearing capacity compared to non-reinforced composite resin and ceramic blocks. These results show that fiber reinforcement increased the load-bearing capacity of molar crowns.eninfo:eu-repo/semantics/openAccessComputer-aided designElectronHumansMicroscopyMolarScanningTooth crownScanning electron microscopy assessment of the load-bearing capacity of cad/cam-fabricated molar crownsScanning electron microscopy assessment of the load-bearing capacity of cad/cam-fabricated molar crownsArticle34e035WOS:0006513191000012-s2.0-850839494293232105310.1590/1807-3107BOR-2020.VOL34.0035Q2Q3