EVALUATING THE FRACTURE STRENGTH OF THREE DIFFERENT PROVISIONAL CROWNS
Journal Title: Journal of International Dental and Medical Research - Year 2010, Vol 3, Issue 1
Abstract
With the advent of new provisional crown materials, it has become imperative to evaluate their strength in order to select the appropriate crown material. This study examined the fracture resistance of three different provisional materials. To simulate oral conditions, the specimens were fabricated in brass molds, ensuring their similarity to premolars. The 33 fabricated specimens were divided into three groups (n=11) and stored at 37°C in artificial saliva (1.6 g NaHCO3, 0.4 g NaH2PO4∙H2O, and 0.1 g CaCl2∙H2O per L H2O). After conditioning, the fracture resistance was assessed using a universal testing machine (Testometric). Analysis of variance and Student’s t-test were used for statistical analysis. The study concluded that the mechanical properties of provisional restorative materials are strongly influenced by their proportions of methyl methacrylate and bisphenol A glycidyl methacrylate.
Authors and Affiliations
Mustafa Zortuk, Eylem Ozdemir, Suleyman Aguloglu
Keywords
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