Abstract
Purpose: The aim of this study measured and compared the marginal and internal fit of metal cores with two basemetal alloy (Ni-Cr alloy(non-beryllium), Co-Cr alloy).Methods: Maxillary right first molar abutment fabricated by titanium was prepared for this study.Impressions(10ea) were made from titanium model, and study models were poured with improved dental stone.Wax cores of twenty were prepared for burn-out and casting. Ten wax cores cast Ni-Cr alloy(non-Be), and finallyten cast Co-Cr alloy. Marginal and internal fit of cores was evaluated using silicone replica technique and digitalmicroscope(x160). The data were statistically analyzed with the independent samples
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