Flexural strength of 3D printed posterior dental restorations: A Narrative review of the literature
1 Undergraduate students of the Faculty of Dentistry of the University of Cuenca, Ecuador.
2 Prosthodontics Department, Faculty of Dentistry University of Cuenca/ Professor of the School of Dentistry of the University of Cuenca, Ecuador.
Review Article
World Journal of Advanced Research and Reviews, 2023, 18(03), 086–100
Article DOI: 10.30574/wjarr.2023.18.3.1013
Publication history:
Received on 20 April 2023; revised on 28 May 2023; accepted on 31 May 2023
Abstract:
The objective of this narrative review was to compare and analyze published articles on the mechanical properties of 3D printed fixed dental restorations compared to restorations fabricated with CAD/CAM and/or conventional milled composite and/or acrylic resins and to answer the following research question: Do 3D printed posterior restorations have increased flexural strength compared to restorations made of composite resin and/or acrylic resin? Articles were searched using the following electronic databases: PubMed, GOOGLE SCHOOLAR. This literature review was structured based on the guidelines given by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The PICO/PECO (Participant, Intervention/Exposure, Comparison, Outcome) focused question was: "Do restorations printed on 3D printers (I) for the posterior sector (P) have higher flexural strength (O) compared to restorations made of composite resin and/or acrylic resin (C)?". Of the two hundred and thirty-five titles, which were recognized after a primary search, fourteen articles were included in the analysis. The evidence available after performing this narrative review indicates that 3D-printed posterior fixed restorations have comparable mechanical behavior to CAD/CAM-engineered posterior fixed restorations in terms of flexural strength.
Keywords:
Temporary dental resins; PMMA; 3D printing; CAD/CAM; Temporary crowns; Temporary fixed dental prosthesis; Mechanical properties; Fracture resistance; Wear resistance; Flexural strength; DLP digital light processing; SLA stereolithography
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Copyright © 2023 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0