2015
DOI: 10.1016/j.dental.2014.11.013
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Direct measurement of time-dependent anesthetized in vivo human pulp temperature

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Cited by 15 publications
(4 citation statements)
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“…The occlusal preparation was filled with provisional restorative material (Cavitec, CaiTHEC Ltda, São José dos Pinhais, PR, Brazil) to minimize heat loss from the tooth through the preparation walls and pulp access, while the probe remained in place. PT reached a stable baseline value (approximately 35°C) 20 after approximately 15 min of real-time analysis, during which data were continuously acquired every 0.2 s. The LCU tip was positioned against and as close as possible to the buccal tooth surface and the tooth was sequentially exposed to the radiant output from a Polywave ® LED LCU (Bluephase 20i, Ivoclar Vivadent, Schaan, Principality of Liechtenstein) using the following exposure modes (EMs): 10-s at low intensity (10-s/L); 10-s at high intensity (10-s/H); 5-s at Turbo intensity (5-s/T); and 60-s at high intensity (60-s/H). These exposure modes were selected because they are the most clinically relevant modes used for a wide variety of clinical applications.…”
Section: Methodsmentioning
confidence: 93%
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“…The occlusal preparation was filled with provisional restorative material (Cavitec, CaiTHEC Ltda, São José dos Pinhais, PR, Brazil) to minimize heat loss from the tooth through the preparation walls and pulp access, while the probe remained in place. PT reached a stable baseline value (approximately 35°C) 20 after approximately 15 min of real-time analysis, during which data were continuously acquired every 0.2 s. The LCU tip was positioned against and as close as possible to the buccal tooth surface and the tooth was sequentially exposed to the radiant output from a Polywave ® LED LCU (Bluephase 20i, Ivoclar Vivadent, Schaan, Principality of Liechtenstein) using the following exposure modes (EMs): 10-s at low intensity (10-s/L); 10-s at high intensity (10-s/H); 5-s at Turbo intensity (5-s/T); and 60-s at high intensity (60-s/H). These exposure modes were selected because they are the most clinically relevant modes used for a wide variety of clinical applications.…”
Section: Methodsmentioning
confidence: 93%
“…The flask itself rested in the water of a temperature–controlled bath (Model 1-2000, Thermo-Lift, Bruchler Instruments Inc., Fort Lee, NJ, USA). Water temperature was thermostatically controlled to provide an intrapulpal temperature of approximately 35.5°C (±0.5°C), which is similar to that of the in vivo condition 20 …”
Section: Methodsmentioning
confidence: 99%
“…Our current study used 37 °C as the baseline pulpal temperature, assuming that pulpal temperature is the same as physiological temperature. A more recent study has suggested that the pulpal temperature may be lower than that [21]. It is unclear if using a different baseline temperature would affect the temperature changes.…”
Section: Discussionmentioning
confidence: 99%
“…No entanto, esses estudos adotam uma variável de temperatura entre 33 o C e 35 o C (Runnacles P et al, 2014;Daronch M et al, 2007;Park SH., 2010), o que não condiz com a polpa in-vivo. Para os cimentos avaliados nesse estudo ocorreu uma variação de temperatura média de 12 o C, o que seria inaceitável para a saúde pulpar; entretanto, algumas variáveis como a diminuição da profundidade de penetração da luz pela presença de carga (Rueggberg et al, 1994;Knezevic et al, 2001); espessura de dentina remanescente, a qual por possuir baixa condutibilidade térmica funcionaria como isolante para a polpa (Brown WS et al, 1970), a presença do adesivo polimerizado, funcionando também como um isolante pelo selamento dos túbulos dentinários e formação da camada hibrida (Mickenautsch S et al, 2010), e ainda a pequena espessura do filme utilizado em procedimentos de cimentação, atenuariam o aumento da temperatura e o efeito nocivo ao tecido pulpar.…”
Section: Discussionunclassified