Improved fit of maxillary complete dentures processed on high expansion stone casts
| Autor: | E.J. Sutow, Oskar Sykora |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Denture Bases
Materials science Polymers medicine.medical_treatment Acrylic Resins Dentistry Calcium Sulfate Statistics Nonparametric Prosthesis fitting Prosthesis Fitting medicine Statistical analysis Denture Design Acrylic resin Orthodontics business.industry Denture Complete Upper Water Models Dental Dental stone visual_art Technology Dental visual_art.visual_art_medium Denture base Water chemistry Oral Surgery Dentures business |
| Zdroj: | The Journal of Prosthetic Dentistry. 77:205-208 |
| ISSN: | 0022-3913 |
| DOI: | 10.1016/s0022-3913(97)70236-1 |
| Popis: | Purpose. Although relatively well-fitting dentures are produced at low cost and with easy-to-manipulate material, current denture base materials are not ideal. Because acrylic resin complete and removable partial dentures change dimensionally as a result of polymerization and thermal contractions, a high expansion stone was tested in this study to determine its ability to compensate for some of the dimensional change. Material and Methods. Maxillary complete dentures were processed on type III dental stone and high expansion stone casts. The accuracy of fit along the posterior palatal border was measured and compared after the prostheses were trimmed and polished and after their immersion in water at 23° C at 1-day and 1-week intervals. Results. Statistical analysis of the data revealed that at every measurement interval the maxillary complete dentures processed on high expansion stone had posterior palatal border openings that were significantly smaller when compared with type III dental stone ( p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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