Özet:

The temperature rise of autopolymerization or photpolymerization reaction by direct manufacturing of provisional crown material (PCM) can injure dental pulp. The purpose of this in vitro study is to compare the temperature rise in the pulp chamber during the manufacturing of provisional crowns with different direct manufacturing techniques. Three autopolimerizan (polymethylmetacrylat, bis acrylic composite, multifunctional metacrylat) and one photopolimerizan (urethane-dimetyl-metacrylat) were compared with respect to their exothermic reaction during polymerization with one and two steps direct manufacturing methods. The temperature rise in the pulp chamber of a prepared mandible third molar was recorded using a J-type thermocouple. Data were analyzed using ANOVA, Tukey's test and Paired t test (α=0. and 05). One-way ANOVA indicated a statistically significant difference for all four PCMs by one-step manufacturing (P<0.001). In addition, one-and-two stage construction technique groups were evaluated by independent t-test P

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