Flexural strength of denture bases manufactured by digital techniques compared to conventional heat-polymerized: a systematic review.
4 affiliations
- 1Federal University of Paraíba, João Pessoa, PB, Brazil.
- 2Federal University of Santa Catarina, Florianópolis, Brazil.
- 3Departament of Restorative Dentistry, Federal University of Paraíba, SN, Barreiras Av, house A1-09 Comercial Norte, Bayeux, João Pessoa, PB, Brazil., Brazil.
- 4Departament of Restorative Dentistry, Federal University of Paraíba, SN, Barreiras Av, house A1-09 Comercial Norte, Bayeux, João Pessoa, PB, Brazil., Brazil. [email protected].
Abstract
Problem statement
Total tooth loss results in significant physical, aesthetic, and psychosocial impacts, with prosthetic rehabilitation being the most common solution. The material widely used for denture bases is heat-polymerized acrylic resin, but it has limitations. With the advancement of digital techniques, such as CAD/CAM (computer-aided /computer-aided manufacturing) and 3D printing, there is an opportunity to improve prosthesis manufacturing.Purpose
This study aims to compare, through a systematic review, the flexural strength of denture bases fabricated using digital techniques (CAD/CAM and 3D printing) and conventional methods (heat-polymerized).Materials and methods
Following the PRISMA methodology and applying the PICO (Population, Intervention, Comparison, and Outcome) criteria, complete in vitro studies evaluating flexural strength using ISO (International Standards Organization) / ADA (American Dental Association) standardization were included.Results
The review selected 11 studies for analysis. The findings indicated that dentures milled with CAD/CAM showed higher flexural strength compared to those produced by 3D printing and heat-polymerization. Although 3D printed material exhibited lower strength, it showed increased values when subjected to longer polymerization times.Conclusion
The digitally printed technique demonstrated satisfactory values, even though they were generally lower than those of the conventional heat-cured method. Milled PMMA stood out in terms of strength compared to other materials. Further research is needed on the applicability of 3D-printed material for dentures and clinical studies to assess the material's performance in the oral cavity.
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BibTeX
@article{santos2026flexural,
title = {{Flexural strength of denture bases manufactured by digital techniques compared to conventional heat-polymerized: a systematic review.}},
author = {Kataryne Freitas Nolêto Dos Santos and Ilan Hudson Gomes de Santana and Rodrigo Araújo de Melo E Silva Lucena da Nobrega and Renally Bezerra Wanderley Lima and Ruth Venâncio Fernandes Dantas and Raquel Venâncio Fernandes Dantas and Hugo Ramalho Sarmento},
journal = {BMC oral health},
year = {2026},
month = aug,
doi = {10.1186/s12903-026-09480-3},
url = {https://europepmc.org/article/MED/42972512},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Flexural strength of denture bases manufactured by digital techniques compared to conventional heat-polymerized: a systematic review.
AU - Kataryne Freitas Nolêto Dos Santos
AU - Ilan Hudson Gomes de Santana
AU - Rodrigo Araújo de Melo E Silva Lucena da Nobrega
AU - Renally Bezerra Wanderley Lima
AU - Ruth Venâncio Fernandes Dantas
AU - Raquel Venâncio Fernandes Dantas
AU - Hugo Ramalho Sarmento
PY - 2026
DA - 2026/08/06
JO - BMC oral health
DO - 10.1186/s12903-026-09480-3
UR - https://europepmc.org/article/MED/42972512
AB - Problem statement Total tooth loss results in significant physical, aesthetic, and psychosocial impacts, with prosthetic rehabilitation being the most common solution. The material widely used for denture bases is heat-polymerized acrylic resin, but it has limitations. With the advancement of digital techniques, such as CAD/CAM (computer-aided /computer-aided manufacturing) and 3D printing, there is an opportunity to improve prosthesis manufacturing.Purpose This study aims to compare, through a systematic review, the flexural strength of denture bases fabricated using digital techniques (CAD/CAM and 3D printing) and conventional methods (heat-polymerized).Materials and methods Following the PRISMA methodology and applying the PICO (Population, Intervention, Comparison, and Outcome) criteria, complete in vitro studies evaluating flexural strength using ISO (International Standards Organization) / ADA (American Dental Association) standardization were included.Results The review selected 11 studies for analysis. The findings indicated that dentures milled with CAD/CAM showed higher flexural strength compared to those produced by 3D printing and heat-polymerization. Although 3D printed material exhibited lower strength, it showed increased values when subjected to longer polymerization times.Conclusion The digitally printed technique demonstrated satisfactory values, even though they were generally lower than those of the conventional heat-cured method. Milled PMMA stood out in terms of strength compared to other materials. Further research is needed on the applicability of 3D-printed material for dentures and clinical studies to assess the material's performance in the oral cavity.
SN - 1472-6831
ER -