Comparative Evaluation of Few Physical Properties of Epoxy Resin, Resin-Modified Gypsum and Conventional Type IV Gypsum Die Materials: An in vitro Study
| Autor: | Praveen Kumar Madineni, Manmohan Choudary Gujjarlapudi, Sanjay Dutt Manne, S Varalakshmi Reddy, Kranti Kiran Reddy Ealla, Venkata Narayana Nunna |
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| Rok vydání: | 2012 |
| Předmět: |
Dental Stress Analysis
Time Factors business.product_category Gypsum Microscope Chemical Phenomena Vacuum Surface Properties Computer science engineering.material Calcium Sulfate Comparative evaluation law.invention Stress (mechanics) Dental Materials law Materials Testing Alloys Humans Composite material General Dentistry Universal testing machine Epoxy Resins Water Humidity Epoxy Stainless Steel Models Dental Resins Synthetic Zinc Transverse plane visual_art Dental Casting Investment visual_art.visual_art_medium engineering Die (manufacturing) Stress Mechanical Powders business Copper |
| Zdroj: | The Journal of Contemporary Dental Practice. 13:48-54 |
| ISSN: | 1526-3711 |
| Popis: | Aim To compare and evaluate few physical properties of epoxy resin, resin-modified gypsum and conventional type-IV gypsum die material. Materials and methods In the present study, dimensional accuracy, surface detail reproduction and transverse strength of three die materials like epoxy resin (Diemet-E), resin-modified gypsum (Synarock) and conventional type-IV gypsum (Ultrarock) are analyzed. For dimensional accuracy, master die (Bailey's die) is used and calibrations were made with digital microscope. For surface detail reproduction and transverse strength, rectangular stainless steel master die (Duke's die) was used and calibrations were made with Toolmaker's microscope and Instron universal testing machine respectively. One-way analysis of variance (ANOVA) was performed on the means and standard deviation for groups of each test. Results The results of the study showed statistically significant difference among these materials in dimensional accuracy, surface detail reproduction and transverse strength. Conclusion Epoxy resin exhibited superiority in dimensional accuracy, surface detail reproduction and transverse strength and is nearest to the standards of accurate die material. How to cite this article Gujjarlapudi MC, Reddy SV, Madineni PK, Ealla KKR, Nunna VN, Manne SD. Comparative Evaluation of Few Physical Properties of Epoxy Resin, Resin- Modified Gypsum and Conventional Type IV Gypsum Die Materials: An in vitro Study. J Contemp Dent Pract 2012;13(1): 48-54. |
| Databáze: | OpenAIRE |
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