Fracture resistance of various temporary crown materials
| Autor: | Seyfettin Baydaş, Asude Yilmaz |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Dental Stress Analysis
Materials science medicine.medical_treatment Acrylic Resins Composite Resins Crown (dentistry) Phase Transition Statistics Nonparametric Tensometer Hardness Temporary crown Hounsfield scale Stereo microscope Materials Testing medicine Dental Restoration Failure Polycarbonate Composite material General Dentistry Analysis of Variance Dental laboratory Polycarboxylate Cement Crowns Dental Restoration Temporary visual_art Tukey's range test visual_art.visual_art_medium Chromium Alloys |
| Zdroj: | The journal of contemporary dental practice. 8(1) |
| ISSN: | 1526-3711 |
| Popis: | AimThe aim of this study was to evaluate the fracture resistance of various provisional crown materials using anin vitromodel test system.Methods and MaterialsIn the present study polycarbonate crowns, prefabricated by the manufacturer (3M Polycarbonate Crown), and the temporary crowns, fabricated in the dental laboratory environment, were fabricated using bis-acryl composite (Protemp II), autopolymerizing PMMA resin (BISICO Temp S), and heatpolymerized PMMA resin (Major C&B-V Dentine). All temporary crowns were stored in distilled water for 24 hours at room temperature prior to testing. The crowns were seated on metal dies, fabricated from Cr-Co alloy (AZ Dental, Konstanz, Germany), and then tested using the indenter of a Hounsfield testing machine (Hounsfield Tensometer, Hounsfield Test Equipment, Raydon, England). The tip of the indenter was located at a position one-third of the way down the inciso-palatine surface at 135°. The data were statistically analyzed for differences using one-way analysis of variance (ANOVA) and the Tukey HSD test (PResultsThe results of the present study indicated polycarbonate crowns were significantly different from the BISICO Temp S, Protemp II, and Major C&B-V Dentine (PConclusionThisin vitrostudy shows polycarbonate crowns may be preferable to the other types of temporary crowns used in this study.CitationYilmaz A, Baydaş S. Fracture Resistance of Various Temporary Crown Materials. J Contemp Dent Pract 2007 January;(8)1:044-051. |
| Databáze: | OpenAIRE |
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