Title
Titanium dioxide nanoparticle-reinforced PMMA denture base resin: An in vitro study
Authors
Aditya Chobey, Jyotsna Seth & Varun Kumar*
Affiliation
Department of Prosthodontics and Crown & Bridge, Seema Dental College and Hospital, Rishikesh, Uttarakhand, India; *Corresponding author
Aditya Chobey - E-mail:
imaditya2810@gmail.com
Jyotsna Seth - E-mail: drjyotsnaseth64@gmail.com; drjyotsnaseth@seemadental.com
Varun Kumar - E-mail: drvarun_smile@yahoo.co.in; drvarunkumar@seemadental.com
Article Type
Research Article
Date
Received September 1, 2026; Revised September 30, 2026; Accepted September 30, 2026, Published September 30, 2026
Abstract
Heat-polymerized PMMA denture base resin is widely used but remains susceptible to fracture because of its limited mechanical strength. Therefore, it is of interest to evaluate the effect of 2% and 4% titanium dioxide nanoparticles on the tensile, impact and flexural strengths of heat-polymerized PMMA. Ninety specimens were fabricated and tested using standardized mechanical testing methods. PMMA reinforced with 2% TiO₂ nanoparticles showed significantly higher tensile, impact and flexural strengths than the control and 4% TiO₂ groups (p < 0.001). Thus, data shows that 2% TiO₂ nanoparticle reinforcement effectively enhances the mechanical performance of heat-polymerized PMMA denture base resin.
Keywords
Polymethyl methacrylate, titanium dioxide (TiO₂) nanoparticles, denture base resin, flexural strength, impact strength, tensile strength, heat-polymerized acrylic resin, nanocomposites
Citation
Chobey et al. Bioinformation 22(9): 5776-5779 (2026)
Edited by
Ruby Singh
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
