Development of 3-dimensionally printed denture base material utilizing hybrid polymer: A preliminary investigation

Current 3-dimensionally (3D) printed denture bases have inadequate strength and durability for long-term use, and milled denture bases generate excessive waste. Addressing these limitations is crucial to advancing prosthetic dentistry, ensuring improved patient outcomes and promoting environmental r...

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Bibliographic Details
Published in:The Journal of prosthetic dentistry 2024-12, Vol.132 (6), p.1329.e1-1329.e6
Main Authors: Zahari, Nur A’fifah Husna, Farid, Durratul Aqwa Mohd, Alauddin, Muhammad Syafiq, Said, Zulfahmi, Ghazali, Mohd Ifwat Mohd, Lee, Hao-Ern, Zol, Syazwani Mohamad
Format: Article
Language:English
Subjects:
Dental Materials - chemistry
Dental Stress Analysis
Denture Bases
Denture Design
Flexural Strength
Humans
In Vitro Techniques
Materials Testing
Polymers - chemistry
Polymethyl Methacrylate - chemistry
Printing, Three-Dimensional
Zirconium - chemistry
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Summary:Current 3-dimensionally (3D) printed denture bases have inadequate strength and durability for long-term use, and milled denture bases generate excessive waste. Addressing these limitations is crucial to advancing prosthetic dentistry, ensuring improved patient outcomes and promoting environmental responsibility. The purpose of this in vitro study was to incorporate microparticles into a commercially available 3D printed denture base resin and compare its mechanical and biological properties with the conventional polymethyl methacrylate (PMMA) denture base material. Microparticles were collected from milled zirconia blanks and were blended with a 3D printing denture base resin (NextDent Denture 3D+). The optimal zirconia microparticle content (2%) for blending and printed was determined by using a liquid-crystal display (LCD) 3D printer. The printed specimens were then postrinsed and postpolymerized based on the manufacturer’s instructions. Mechanical and biological characterization were carried out in terms of flexural strength, fracture toughness, and fungal adhesion. One-way ANOVA was carried out to analyze the results statistically. The incorporation of microparticles in the 3D printed denture demonstrated higher mechanical strength (104.77 ±7.60 MPa) compared with conventional heat-polymerized denture base resin (75.15 ±24.41 MPa) (P
ISSN:0022-3913
1097-6841
1097-6841
DOI:10.1016/j.prosdent.2024.07.017