Hensel, Franziska and Koenig, Andreas and Doerfler, Hans-Martin and Fuchs, Florian and Rosentritt, Martin and Hahnel, Sebastian (2021) CAD/CAM Resin-Based Composites for Use in Long-Term Temporary Fixed Dental Prostheses. POLYMERS, 13 (20): 3469. ISSN , 2073-4360
Full text not available from this repository. (Request a copy)Abstract
The aim of this in vitro study was to analyse the performance of CAD/CAM resin-based composites for the fabrication of long-term temporary fixed dental prostheses (FDP) and to compare it to other commercially available alternative materials regarding its long-term stability. Four CAD/CAM materials [Structur CAD (SC), VITA CAD-Temp (CT), Grandio disc (GD), and Lava Esthetic (LE)] and two direct RBCs [(Structur 3 (S3) and LuxaCrown (LC)] were used to fabricate three-unit FDPs. 10/20 FDPs were subjected to thermal cycling and mechanical loading by chewing simulation and 10/20 FDPs were stored in distilled water. Two FDPs of each material were forwarded to additional image diagnostics prior and after chewing simulation. Fracture loads were measured and data were statistically analysed. SC is suitable for use as a long-term temporary (two years) three-unit FDP. In comparison to CT, SC featured significantly higher breaking forces (SC > 800 N; CT < 600 N) and the surface wear of the antagonists was (significantly) lower and the abrasion of the FDP was similar. The high breaking forces (1100-1327 N) of GD and the small difference compared to LE regarding flexural strength showed that the material might be used for the fabrication of three-unit FDPs. With the exception of S3, all analysed direct or indirect materials are suitable for the fabrication of temporary FDPs.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PROVISIONAL CROWN; COLOR STABILITY; BLOCKS; RESISTANCE; WEAR; three-unit FDP; surface wear; dimethacrylats; chewing simulation; RBC; micro X-ray computer tomograph; confocal laser scanning microscope |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnärztliche Prothetik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Sep 2022 12:55 |
| Last Modified: | 13 Sep 2022 12:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47223 |
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