Mechanical Performance of Resins for Complete Denture Bases Manufactured by CAD-CAM, 3D Printing and Heat Polymerization after Aging: Integrative Literature Review
DOI:
https://doi.org/10.21270/archi.v14i5.6591Keywords:
Dental Prosthesis, Printing, Three-Dimensional, Polymers, Flexural StrengthAbstract
Introduction: Heat-polymerized polymethyl methacrylate (PMMA) has been widely used in the fabrication of complete denture bases due to its biocompatibility and favorable clinical performance. Digital methods, such as CAD-CAM and 3D printing, are being proposed as alternatives to PMMA. Advances in the research of these new materials may improve care standards and the quality of life for denture wearers. Objective: To review the literature on the mechanical performance of denture base resins fabricated by CAD-CAM, 3D printing, and heat polymerization after aging. Material and Methods: The review followed the PICO strategy and included articles published between 2020 and 2025 in Portuguese and English, retrieved from BVS, PubMed, and Science Direct. The search included descriptors, synonyms, and terms in titles and abstracts. Inclusion criteria were in vivo and in vitro studies comparing heat-polymerized resins with digitally fabricated resins, focusing on mechanical resistance and aging. Exclusion criteria were studies that did not directly address these comparisons or did not assess mechanical performance. Results: Four articles were included, all with low scientific evidence. Three articles indicated that resins fabricated by digital methods showed higher fracture resistance after aging. Conclusion: Resins fabricated by digital methods showed greater resistance to aging than heat-polymerized resins.
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References
1. Chander NG, Mahajan A. Comparison of cytotoxicity between 3D printable resins and heat-cure PMMA. J Oral Biol Craniofac Res. 2024;14(1):107-10.
2. Temizci T, Bozoğulları HN. Effect of thermal cycling on the flexural strength of 3-D printed, CAD/CAM milled and heat-polymerized denture base materials. BMC Oral Health. 2024;24(1):357.
3. Maniewicz S, Ortensi L, Masci C, Sorrentino R, Gherlone E, Rumi G. Fit and retention of complete denture bases: Part I–Conventional versus CAD-CAM methods: A clinical controlled crossover study. J Prosthet Dent. 2024.
4. Arora O, Samra RK, Bansal S, Nanda A. Denture base materials: An in vitro evaluation of the mechanical and color properties. J Dent. 2024;145:104993.
5. Kattadiyil MT, AlHelal A, Goodacre BJ, Baba NZ, Kattadiyil DS, Jekki R. Comparison of treatment outcomes in digital and conventional complete removable dental prosthesis fabrications in a predoctoral setting. J Prosthet Dent. 2015;114(6):818-25.
6. Kattadiyil MT, Goodacre CJ, Baba NZ. CAD/CAM complete dentures: a review of two commercial fabrication systems. J Calif Dent Assoc. 2013;41(6):407-16.
7. Grande F, Silva J, Magalhães C, Silva A, Gomes J. Comparison of the accuracy between denture bases produced by subtractive and additive manufacturing methods: A pilot study. Prosthesis. 2022;4(2):151-9.
8. Van Noort R. The future of dental devices is digital. Dent Mater. 2012;28(1):3-12.
9. Abdul-Monem MM, Hanno KI. Effect of thermocycling on surface topography and fracture toughness of milled and additively manufactured denture base materials: an in-vitro study. BMC Oral Health. 2024;24(1):267.
10. DeMathe A, Camargo LB, Romano AR. Odontologia baseada em evidências: otimizando a prática e a pesquisa. RFO UPF. 2012;17(1):96-100.
11. Bento VAA, Carvalho CN, Sardi JCO, Borges ALS, Neppelenbroek KH. Effect of aging on the mechanical properties of CAD/CAM-milled and 3D-printed acrylic resins for denture bases. Int J Prosthodont. 2024;37:5-11.
12. Yu HJ, Lim YJ, Lee JH, Kim YH. A comparison of the mechanical properties of 3D-printed, milled, and conventional denture base resin materials. Dent Mater J. 2024;43(6):813-21.
13. Alhotan A, Silikas N, Watts DC. Effect of uniaxial bending methods on the flexural strength and Weibull analysis of heat-polymerized, CAD/CAM milled, and 3D-printed denture base resins. Dent Mater. 2025.
14. Alqutaibi AY, Alshamrani M, Alqahtani F, Alkhaldi H, Almalki A, Alnamel H, et al. Physical–mechanical properties and accuracy of additively manufactured resin denture bases: Impact of printing orientation. J Prosthodont Res. 2025.
15. Jafarpour D, Mosharraf R, Khosravani MR, Atai M. Effects of DLP printing orientation and postprocessing regimes on the properties of 3D printed denture bases. J Prosthet Dent. 2025.
16. Lin CH, Lin YH, Hung CJ, Lin HY, Lee SY. Mechanical properties, accuracy, and cytotoxicity of UV-polymerized 3D printing resins composed of Bis-EMA, UDMA, and TEGDMA. J Prosthet Dent. 2020;123(2):349-54.
17. Groth C, Kravitz ND, Jones PE, Graham JW, Redmond WR. Three-dimensional printing technology. J Clin Orthod. 2014;48(8):475-85.
18. Casucci A, Raffaelli L, Scarano A, Petrini M, Montemurro N, Barlattani A Jr, et al. Flexural strength analysis of different complete denture resin-based materials obtained by conventional and digital manufacturing. Materials (Basel). 2023;16(19):6559.
19. Bernardes SR, De Matias TSI, Thomé G. Tecnologia CAD/CAM aplicada a prótese dentária e sobre implantes. Jornal Ilapeo. 2012;6(1):8-13.
20. Sayed ME, Swelem AA, Al-Faroukh M, El Mekawy N. Effect of cast modification on denture base adaptation following maxillary complete denture processing. J Prosthodont. 2019;28(1):e6-e12.
21. Dwivedi H, Vishwakarma P, Tyagi N, Sharma A. Analysis of the microstructural and mechanical properties of 3D-printed removable partial denture base materials. J Pharm Bioallied Sci. 2024;16(Suppl 1):S681-S683.
22. ISO 20795-1:2013. Dentistry—Base polymers. Part 1: Denture base polymers. 2nd ed. Geneva: International Organization for Standardization; 2013.
