Scanning electron microscopy assessment of the load-bearing capacity of cad/cam-fabricated molar crowns
| Autor: | Emine Göncü BAŞARAN, Güliz AKTAŞ, Pekka VALLITTU, Lippo LASSILA, Mehmet Cudi TUNCER |
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| Přispěvatelé: | Dicle Üniversitesi, Diş Hekimliği Fakültesi, Protetik Diş Tedavisi Bölümü, Başaran, Emine Göncü, Tuncer, Mehmet Cudi, Tuncer, Cudi Mehmet |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Molar
Dental practice Ceramics Materials science Scanning electron microscope Surface Properties Composite number Composite Resins Electron Load bearing Tooth crown Weight-Bearing 03 medical and health sciences Dimethacrylate resin 0302 clinical medicine stomatognathic system Reference Values Materials Testing Humans General Materials Science Scanning 030212 general & internal medicine Ceramic Fiber Composite material Tooth Crown Analysis of Variance Microscopy Crowns Reproducibility of Results RK1-715 030206 dentistry Dental Prosthesis Design Dentistry visual_art visual_art.visual_art_medium Microscopy Electron Scanning Computer-Aided Design |
| Zdroj: | Brazilian Oral Research, Volume: 34, Article number: e035, Published: 17 APR 2020 Brazilian Oral Research v.34 2020 Brazilian Oral Research Sociedade Brasileira de Pesquisa Odontológica (SBPqO) instacron:SBPQO Brazilian Oral Research, Vol 34 (2020) |
| Popis: | WOS:000651319100001 PMID: 32321053 Although 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. |
| Databáze: | OpenAIRE |
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