Abstract
Purpose: The hardness, porosity, and adaptation of removable partial dentures fabricated with one heat-polymerized denture base resin and two resins designed for microwave polymerization were evaluated. Materials and Methods: Five prostheses were evaluated for each resin. Adaptation of the denture bases to the master cast was evaluated by spatial orientation and mean weight of residual impression material. The prostheses were then embedded in epoxy resin and sectioned for evaluation of resin hardness (Knoop hardness) and microporosity. Results: There were no significant differences in the adaptation of the acrylic resin bases for Acron MC and Ch Lucitone. There was no significant difference in the mean Knoop hardness values for any of the resin bases near and away from the metal. None of the denture bases showed porosity greater than 100 μ. Conclusions: Both resin bases formulated for microwave polymerization were effectively polymerized around metal frameworks without adverse effects on resin hardness or porosity. Justi Denture Base material had poorer base adaptation than the other two resins.
| Original language | English |
|---|---|
| Pages (from-to) | 259-265 |
| Number of pages | 7 |
| Journal | Journal of Prosthodontics |
| Volume | 5 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 1996 |
ASJC Scopus Subject Areas
- General Dentistry
Keywords
- Adaptation
- Denture base resins
- Knoop hardness
- Metal frameworks
- Microwave polymerization
- Porosity
- Removable partial dentures
Cite this
- APA
- Standard
- Harvard
- Vancouver
- Author
- BIBTEX
- RIS