Abstract
The purpose of this paper is to study the effect of methacrylated polyhedralsilsesquioxanes (POSS) on the fracture toughness of poly(methyl methacrylate) (PMMA) based denture-based resins. POSS is a nanostructured material, that is, known to reinforce polymeric systems. Previous work has shown that POSS can improve the mechanical properties of dimethacrylate dental resin systems. Our work shows that there is no significant improvement and a significant drop in mechanical properties is accompanied by evidence of crystallization in the PMMA.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 897-906 |
| Number of pages | 10 |
| Journal | Journal of Macromolecular Science - Pure and Applied Chemistry |
| Volume | 41 A |
| Issue number | 8 |
| DOIs | |
| State | Published - Jul 2004 |
| Externally published | Yes |
Bibliographical note
Funding Information:The Ohio State University, College of Dentistry for financial support, Dave Pham for conduction preliminary experiments and the Summer Research Program for his support; Dr. Anthony Gegauff for the use of the fracture toughness mold; Dr. Stephen Rosenstiel for partial support for Tamer Hamza and assistance in preparation of the materials and methods, and Dentsply for supplying the denture resin.
Keywords
- Denture resins
- Fracture toughness
- Poly(methyl methacrylate)
- Polyhedralsilsesquioxane
- SEM