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The effect of framework design on fracture resistance of metal-ceramic implant-supported single crowns.
Int J Prosthodont. 2010 Jul-Aug; 23(4):350-2.IJ

Abstract

This study evaluated the effect of framework design on the fracture resistance of metal-ceramic implant-supported crowns. Screw-retained molar crowns with a screw access hole composed of metal or porcelain were compared to a cement-retained crown (control). For each group (n = 10), five crowns were subjected to dynamic loading (1,200,000 x 100 N x 2 Hz at 37 degrees C). Afterward, all specimens were loaded to failure using a universal testing machine. Significant differences could be established between the cement- and screw-retained groups (P = or < .05), but no difference was found between the screw-retained groups and the specimens subjected to dynamic loading. Occlusal discontinuity of screw-retained crowns affects their resistance, and the metallic support on the screw access hole did not reinforce the crowns.

Authors+Show Affiliations

Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Brazil. zezogoes@uol.com.brNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

20617225

Citation

de Oliveira, José Luiz G., et al. "The Effect of Framework Design On Fracture Resistance of Metal-ceramic Implant-supported Single Crowns." The International Journal of Prosthodontics, vol. 23, no. 4, 2010, pp. 350-2.
de Oliveira JL, Martins LM, Sanada J, et al. The effect of framework design on fracture resistance of metal-ceramic implant-supported single crowns. Int J Prosthodont. 2010;23(4):350-2.
de Oliveira, J. L., Martins, L. M., Sanada, J., de Oliveira, P. C., & do Valle, A. L. (2010). The effect of framework design on fracture resistance of metal-ceramic implant-supported single crowns. The International Journal of Prosthodontics, 23(4), 350-2.
de Oliveira JL, et al. The Effect of Framework Design On Fracture Resistance of Metal-ceramic Implant-supported Single Crowns. Int J Prosthodont. 2010 Jul-Aug;23(4):350-2. PubMed PMID: 20617225.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effect of framework design on fracture resistance of metal-ceramic implant-supported single crowns. AU - de Oliveira,José Luiz G, AU - Martins,Leandro Moura, AU - Sanada,Jeffeson, AU - de Oliveira,Pedro Cesar G, AU - do Valle,Accácio L, PY - 2010/7/10/entrez PY - 2010/7/10/pubmed PY - 2010/9/30/medline SP - 350 EP - 2 JF - The International journal of prosthodontics JO - Int J Prosthodont VL - 23 IS - 4 N2 - This study evaluated the effect of framework design on the fracture resistance of metal-ceramic implant-supported crowns. Screw-retained molar crowns with a screw access hole composed of metal or porcelain were compared to a cement-retained crown (control). For each group (n = 10), five crowns were subjected to dynamic loading (1,200,000 x 100 N x 2 Hz at 37 degrees C). Afterward, all specimens were loaded to failure using a universal testing machine. Significant differences could be established between the cement- and screw-retained groups (P = or < .05), but no difference was found between the screw-retained groups and the specimens subjected to dynamic loading. Occlusal discontinuity of screw-retained crowns affects their resistance, and the metallic support on the screw access hole did not reinforce the crowns. SN - 0893-2174 UR - https://www.unboundmedicine.com/medline/citation/20617225/The_effect_of_framework_design_on_fracture_resistance_of_metal_ceramic_implant_supported_single_crowns_ DB - PRIME DP - Unbound Medicine ER -