Related Experiment Video
Updated: Jul 4, 2026
06:02
2-Methacryloyloxyethyl Phosphorylcholine Polymer Treatment of Complete Dentures to Inhibit Denture Plaque Deposition
Published on: December 26, 2016
Self-cleaning ability of a photocatalyst-containing denture base material
Yali Cheng1, Takako Sakai, Ryoji Moroi
1Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
Dental Materials Journal
|June 11, 2008
Summary
Adding a photocatalyst to denture base resin can help decompose organic substances. Higher concentrations of photocatalyst in the resin led to greater decomposition of methylene blue (MB).
Area of Science:
- Biomaterials Science
- Photocatalysis
- Dental Materials
Background:
- Denture base resins are susceptible to organic substance adhesion.
- Photocatalytic materials offer potential for self-cleaning surfaces.
Purpose of the Study:
- To investigate the photocatalytic ability of denture base resin incorporating a photocatalyst.
- To evaluate the effect of photocatalyst concentration on organic substance decomposition.
Main Methods:
- Photocatalyst was mixed with denture base resin at varying concentrations (0-15% w/w).
- Decomposition of methylene blue (MB) under UV irradiation was measured over 180 days.
- Bending tests and surface roughness measurements were also conducted.
Main Results:
- Increased photocatalyst concentration in the resin resulted in a significant decrease in residual MB.
- Resin specimens without photocatalyst showed no MB decomposition.
- Photocatalytic activity was observed in the denture base resin containing the photocatalyst.
Conclusions:
- Denture base resin modified with a photocatalyst exhibits promising self-cleaning properties.
- The concentration of the photocatalyst directly influences its efficacy in decomposing organic substances.
- This approach could enhance denture hygiene and reduce biofilm formation.
