Torres, Carlos Rocha Gomes [UNESP]Caneppele, Taciana Marco FerrazArcas, Felipe Carlos DiasBorges, Alessandra Buhler [UNESP]2014-05-272014-05-272008-07-01General Dentistry, v. 56, n. 5, p. 481-486, 2008.0363-6771http://hdl.handle.net/11449/70468This study sought to assess the pulp chamber temperature in different groups of human teeth that had been bleached using hydrogen peroxide gel activated with halogen lamps or hybrid LED/laser appliances. Four groups of ten teeth (maxillary central incisors, mandibular incisors, mandibular canines, and maxillary canines) were used. A digital thermometer with a K-type thermocouple was placed inside pulp chambers that had been filled with thermal paste. A 35% hydrogen peroxide-based red bleaching gel was applied to all teeth and photocured for a total of three minutes and 20 seconds (five activations of 40 seconds each), using light from an LED/laser device and a halogen lamp. The temperatures were gauged every 40 seconds and the data were analyzed by three-way ANOVA, followed by Tukey's test. Regardless of the light source, statistically significant differences were observed between the groups of teeth. The mean temperature values (±SD) were highest for maxillary central incisors and lowest for mandibular canines. The halogen lamp appliance produced more pulp chamber heating than the LED/laser appliance. The increase in irradiation time led to a significant increase in temperature.481-486enghalogenhydrogen peroxideoxidizing agentanalysis of variancebody temperaturecanine toothcomparative studydental carehumanin vitro studyincisorlaserlightnonparametric testradiation exposuresemiconductortooth pulpAnalysis of VarianceBody TemperatureCuspidDental PulpHalogensHumansHydrogen PeroxideIncisorLasersLightOxidantsSemiconductorsStatistics, NonparametricTooth BleachingArtigoAcesso restrito2-s2.0-5214909499031353678496099386960470053037905