Ability to decrease the temperature in the pulp chamber’s internal surface after the application of tetrafluorethane freezing gas on sound and restored extracted tooth
Keywords:diagnosis methods, dental pulp, cold, restoration
AbstractThe successfull endodontic treatment is connected to a correct diagnostic. Amongst the most commonly diagnosis methods used in endodontics, the pulpal vitality test constitutes a clinical aid to evoke a response from the pulp. There are interpretation difficulties about sensitive responses on restored teeth. The restorations may be thermic conductors or insulators, reducing the accuracy of pulpal vitality test. Thus, the aim of this study was to verify the capacity to decrease the temperature pulp chamber’s inside surface after the application of tetrafluorethane freezing gas on upper extracted human canine tooth in three clinical situations: with sound tooth, when the tooth was restored with amalgam and when the tooth was restored with composite resin. When the test involved the tooth restored with amalgam the temperature reduction was statistically higher than the sound tooth and the restored tooth with composite resin. About the time taken to reach the minimal temperature there were no statistically significant differences between the healty tooth and the tooth restored with amalgam. There were again no differences between the sound tooth and the tooth restored with composite resin. However, the tooth restored with composite resin and the tooth restored with amalgam are statistically different. Amalgam was the material which required less time to get to the minimal temperature. Time and intensity of sensitive responses may be changed when there is a restored material on dental surface. UNITERMS: diagnosis methods; dental pulp; cold; restoration.
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