Rottner, Kurt and Reicheneder, Claudia and Boldt, Julian and Proff, Peter and Weingaertner, Jens and Richter, Ernst-Juergen (2008) Effect of load angulation and crown shape on forces acting on post and core restored teeth: an in vitro study. BIOMEDIZINISCHE TECHNIK, 53 (5). pp. 246-250. ISSN 0013-5585,
Full text not available from this repository. (Request a copy)Abstract
To assess the usefulness of different post and core materials and systems, in vitro testing of fracture strength and fatigue resistance is a useful tool. However, the literature does not present coherent results as to which system can withstand the highest loads. With a geometrical model, the effects of load angulation and contact point location on the generated forces were calculated. To validate the mathematical model, a set of measurements was performed with a set-up that made it possible to measure the critical forces on a post and core restoration. A high level of correlation between the predictions of the model and the measurements was found. It was shown that the resulting forces are strongly dependent on the precise design of the test set-up and results from different geometries cannot be compared directly. Very strong sensitivity to small misalignment was found, all of which serves to explain the large differences in the literature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TREATED MAXILLARY INCISORS; FRACTURE STRENGTH; SURVIVAL RATE; CARBON-FIBER; SYSTEMS; CAST; RESTORATIONS; biomechanics; force measurement; incisor; modeling; post and core |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Kieferorthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Nov 2020 09:22 |
| Last Modified: | 11 Nov 2020 09:22 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31558 |
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