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Article

Assessment of the Different Types of Failure on Anterior Cantilever Resin-Bonded Fixed Dental Prostheses Fabricated with Three Different Materials: An In Vitro Study

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Department of Neurosciences, School of Dentistry, Section of Prosthodontics and Digital Dentistry, University of Padova, 35100 Padova, Italy
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Departments of Civil, Environmental and Architectural Engineering, University of Padova, 35100 Padova, Italy
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Departments of Management and Engineering, University of Padova, 36100 Vicenza, Italy
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Department of Biomedical and Neuromotor Sciences (DIBINEM), Division of Prosthodontics and Maxillofacial Rehabilitation, Alma Mater Studiorum— University of Bologna, 40121 Bologna, Italy
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(12), 4151; https://doi.org/10.3390/app10124151
Received: 19 May 2020 / Revised: 12 June 2020 / Accepted: 15 June 2020 / Published: 17 June 2020
(This article belongs to the Special Issue Mechanical Properties of Materials)
background: resin-bonded fixed dental prosthesis (RBFDP) represents a highly aesthetic and conservative treatment option to replace a single tooth in a younger patient. The purpose of this in vitro study was to compare the fracture strength and the different types of failure on anterior cantilever RBFDPs fabricated using zirconia (ZR), lithium disilicate (LD), and PMMA-based material with ceramic fillers (PM) by the same standard tessellation language (STL) file. Methods: sixty extracted bovine mandibular incisives were embedded resin block; scanned to design one master model of RBFDP with a cantilevered single-retainer. Twenty cantilevered single-retainer RBFDPs were fabricated using ZR; LD; and PM. Static loading was performed using a universal testing machine. Results: the mean fracture strength for the RBFDPs was: 292.5 Newton (Standard Deviation (SD) 36.6) for ZR; 210 N (SD 37.6) for LD; and 133 N (SD 16.3) for PM. All the failures of RBFDPs in ZR were a fracture of the abutment tooth; instead; the 80% of failures of RBFDPs in LD and PM were a fracture of the connector. Conclusion: within the limitations of this in vitro study, we can conclude that the zirconia RBFDPs presented load resistance higher than the maximum anterior bite force reported in literature (270 N) and failure type analysis showed some trends among the groups View Full-Text
Keywords: zirconia; digital dentistry; lithium disilicate; resin bonded bridge; fracture; adhesive restorations; CAD/CAM; PMMA zirconia; digital dentistry; lithium disilicate; resin bonded bridge; fracture; adhesive restorations; CAD/CAM; PMMA
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MDPI and ACS Style

Di Fiore, A.; Stellini, E.; Savio, G.; Rosso, S.; Graiff, L.; Granata, S.; Monaco, C.; Meneghello, R. Assessment of the Different Types of Failure on Anterior Cantilever Resin-Bonded Fixed Dental Prostheses Fabricated with Three Different Materials: An In Vitro Study. Appl. Sci. 2020, 10, 4151. https://doi.org/10.3390/app10124151

AMA Style

Di Fiore A, Stellini E, Savio G, Rosso S, Graiff L, Granata S, Monaco C, Meneghello R. Assessment of the Different Types of Failure on Anterior Cantilever Resin-Bonded Fixed Dental Prostheses Fabricated with Three Different Materials: An In Vitro Study. Applied Sciences. 2020; 10(12):4151. https://doi.org/10.3390/app10124151

Chicago/Turabian Style

Di Fiore, Adolfo, Edoardo Stellini, Gianpaolo Savio, Stefano Rosso, Lorenzo Graiff, Stefano Granata, Carlo Monaco, and Roberto Meneghello. 2020. "Assessment of the Different Types of Failure on Anterior Cantilever Resin-Bonded Fixed Dental Prostheses Fabricated with Three Different Materials: An In Vitro Study" Applied Sciences 10, no. 12: 4151. https://doi.org/10.3390/app10124151

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