Preuss, Anja and Rosentritt, Martin and Frankenberger, Roland and Beuer, Florian and Naumann, Michael (2008) Influence of type of luting cement used with all-ceramic crowns on load capability of post-restored endodontically treated maxillary central incisors. CLINICAL ORAL INVESTIGATIONS, 12 (2). pp. 151-156. ISSN 1432-6981,
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Adhesive luting of the final restorations is supposed to support the overall strength of post-endodontically restored teeth. For evaluating adhesive vs conventional cementation, the load capability of adhesively restored endodontically treated teeth (ETT) with glass fibre-reinforced composite posts (GFRCP), resin composite cores and all-ceramic crowns was determined. Thirty-two caries-free human upper, central incisors were randomly assigned to four groups, endodontically treated and cut 2 mm above the cemento-enamel junction. All teeth were restored with GFRCP, composite core build-ups and all-ceramic crowns. All-ceramic crowns were cemented with zinc phosphate cement (I), glass ionomer cement (II), and a self-adhesive resin cement (III and IV). After thermo-mechanical loading, the specimens were loaded to fracture. Maximum load capability F(max) and fracture patterns were compared using non-parametric statistics. Median values for the maximum load capability F(max) (minimum/maximum) in [N] were: I = 503 (416/1,038), II = 442 (369/711), III = 502 (326/561) and IV = 518 (416/652). No statistically significant differences were found for F(max) (p = 0.761) and fracture patterns (p = 0.094) between the experimental groups. The type of cementation of all-ceramic crowns, whether self-adhesive or conventional, appears to have no impact on the load capability of ETT restored with GFRCP and composite core build-ups.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STRUCTURALLY COMPROMISED TEETH; FIBER-REINFORCED COMPOSITE; FINITE-ELEMENT-ANALYSIS; CORE SYSTEMS; FRACTURE-RESISTANCE; PULPLESS TEETH; CAST POST; IN-VITRO; PROSTHETIC TREATMENT; RESIN CEMENTS; luting material; fibre-reinforced posts; chewing simulation |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnärztliche Prothetik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Oct 2020 12:05 |
| Last Modified: | 29 Oct 2020 12:05 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30777 |
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