The vitality pulp tests are necessary for diagnosis of pulpal disease and differentiation between endodontic and nonendodontic disease. Thermal and electrical tests are conventional method for evaluation pulp vitality. The aim of the present study was to evaluate the accuracy of thermal and electrical tests to register pulp vitality in different group of teeth. 184 teeth (81 male, 103 female) with unknown pulpal status that need endodontic treatment were examined. After complete isolation, the thermal and electrical tests were performed. The cold, heat and electrical tests were done. The interval between tests was conducted after 2 minutes. Based on information obtained the sensitivity, specifi city, accuracy, positive and negative predictive value were calculated. In total, 78 teeth with necrotic pulp and 106 teeth with vital pulp were tested. The gold standard was established by direct pulp inspection of 184 teeth with endodontic treatment. Based on information obtained the accuracy of cold test in anterior teeth was 78/8%, in premolar teeth was 81.8% and in molar teeth was 80.5%. The accuracy of heat test in anterior teeth was 82.6%, in premolar teeth was 78.1% and in molar teeth was 72.7%. The accuracy of electric pulp test in anterior teeth was 71.1%, in premolar teeth was 74.5% and in molar teeth was71.4%. In anterior teeth the heat test has more accuracy than the other one. In premolar and molar teeth the cold test has more accuracy than other test.