Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2022 Oct 13;10(10):2565.
doi: 10.3390/biomedicines10102565.

Mechanical Properties of Polymethyl Methacrylate as Denture Base Material: Heat-Polymerized vs. 3D-Printed-Systematic Review and Meta-Analysis of In Vitro Studies

Cláudia Lourinho  1 , Helena Salgado  1 , André Correia  2 , Patrícia Fonseca  2
Affiliations
Review

Mechanical Properties of Polymethyl Methacrylate as Denture Base Material: Heat-Polymerized vs. 3D-Printed-Systematic Review and Meta-Analysis of In Vitro Studies

Cláudia Lourinho et al. Biomedicines. .

Abstract

The synergy between dentistry and informatics has allowed the emergence of new technologies, specifically 3D printing, which has led to the development of new materials. The aim of this research was to compare the mechanical properties of dental base resins for 3D printing with conventional ones. This systematic review was developed using the PRISMA guidelines, and the electronic literature search was performed with the PubMed/MEDLINE, Web of Science-MEDLINE and EMBASE databases, until 30 April 2022. Two researchers selected the studies independently, and thus eight articles were found eligible for analysis. A meta-analysis was developed to estimate flexural strength. The Cohen's kappa corresponding to this review was 1.00, and the risk assessment was considered low for the included studies. The 3D printing resin presented lower values of flexural strength and hardness compared with the heat-cured resin. Regarding impact strength, a lower value was recorded for the heat-cured resin compared with the 3D printing resin. Three-dimensional printing resins are viable materials for making prosthetic bases but need further clinical research.

Keywords: 3D printing; denture base; mechanical tests; polymethyl methacrylate; systematic review.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Flow chart of the systematic literature search according to PRISMA guidelines.
Figure 2
Figure 2
Forest plot for flexural strength.
Figure 3
Figure 3
Heterogeneity test.
See this image and copyright information in PMC

References

    1. Zafar M.S. Prosthodontic applications of polymethyl methacrylate (PMMA): An update. Polymers. 2020;12:2299. doi: 10.3390/polym12102299. - DOI - PMC - PubMed
    1. de Souza Leão R., de Moraes S.L.D., de Luna Gomes J.M., Lemos C.A.A., da Silva Casado B.G., do Egito Vasconcelos B.C., Pellizzer E.P. Influence of addition of zirconia on PMMA: A systematic review. Mat. Sci. Eng. C Mater. Biol. Appl. 2020;106:110292. doi: 10.1016/j.msec.2019.110292. - DOI - PubMed
    1. Aldegheishem A., AlDeeb M., Al-Ahdal K., Helmi M., Alsagob E.I. Influence of reinforcing agents on the mechanical properties of denture base resin: A systematic review. Polymers. 2021;13:3083. doi: 10.3390/polym13183083. - DOI - PMC - PubMed
    1. Gad M.M., Al-Thobity A.M. The impact of nanoparticles-modified repair resin on denture repairs: A systematic review. Jpn. Dent. Sci. Rev. 2021;57:46–53. doi: 10.1016/j.jdsr.2020.12.004. - DOI - PMC - PubMed
    1. Hassan M., Asghar M., Din S.U., Zafar M.S. In: Chapter 8—Thermoset Polymethacrylate-Based Materials for Dental Applications. Thermoset and Thermoplastic Polymers. 1st ed. Grumezescu V., Grumezescu A.M., editors. ScienceDirect Elsevier; Amsterdam, The Netherlands: 2019. pp. 273–308. - DOI

LinkOut - more resources