Year : 2022 | Volume
: 12 | Issue : 2 | Page : 160--170
Flexural strength of CAD/CAM denture base materials: Systematic review and meta-analysis of in-vitro studies
Reem Abualsaud, Mohammed M Gad
Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, Kingdom of Saudi Arabia
Introduction: Digital complete dentures fabrication techniques are expanding. This study aimed to review flexural strength (FS) of milled and 3D-printed denture base materials to answer the study question: is FS of computer-aided designing/computer-aided manufacturing (CAD/CAM) denture base comparable to conventional heat-polymerized materials?Materials and Methods: Search was done within different databases for articles published between January 2010 and June 2021 using specific keywords. Articles of in-vitro studies in English language with methods following International Standards Organization standardization/ADA specifications for flexural testing of conventional and CAD/CAM (milled or printed) polymethyl methacrylate (PMMA) materials were included. Results: Out of the 61 studies, 9 were processed for data extraction and only 7 underwent meta-analysis. Two, six, and one study showed high, moderate, and low risk of bias, respectively. Random-effects model was used for analysis and resulted in the average FS of 120.61 MPa [95% confidence interval (CI): 109.81−131.41] and 92.16 MPa (CI: 75.12−109.19) for CAD/CAM milled and heat-polymerized PMMA, respectively. Conclusion: Subtractive CAD/CAM technique of denture fabrication showed satisfactory FS values, whereas additive CAD/CAM method was comparable to conventional heat-polymerized technique with lower value, requiring further investigations and improvement. The clinical use of milled denture bases is an acceptable substitution to heat-polymerized PMMA, making the denture fabrication an easier and faster process.
Dr. Reem Abualsaud
Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam 31441.
Kingdom of Saudi Arabia
|How to cite this article:|
Abualsaud R, Gad MM. Flexural strength of CAD/CAM denture base materials: Systematic review and meta-analysis of in-vitro studies.J Int Soc Prevent Communit Dent 2022;12:160-170
|How to cite this URL:|
Abualsaud R, Gad MM. Flexural strength of CAD/CAM denture base materials: Systematic review and meta-analysis of in-vitro studies. J Int Soc Prevent Communit Dent [serial online] 2022 [cited 2022 May 25 ];12:160-170
Available from: https://www.jispcd.org/article.asp?issn=2231-0762;year=2022;volume=12;issue=2;spage=160;epage=170;aulast=Abualsaud;type=0