The effect of different pulp capping methods on the intrapulpal temperature when using light-cured procedures
Year: 2022
Type: article
Abstract: Background: To evaluate the intra-pulpal temperature during different direct pulp capping methods and light-cured procedures.Material and Methods: Class I preparations 5 mm long, 4 mm wide and 4 mm deep were performed in extracted third molars, leaving 0.5 mm of dentin at the pulpal floor with a 1 mm diameter of pulp exposure.Teeth were placed in a customized oral cavity chamber simulator in which the initial temperature was standardized at 36oC.The overall temperature variations (oC) in the pulp chamber during the light-activation processes were recorded live using an infrared camera (FLIR ONE PRO, FLIR Systems).The liners and bases evaluated were: Dycal (Dentisply), TheraCal LC (Bisco), Biodentin (Septodent), Vitrebond Plus (3M/ESPE), and Fuji IX GP (GC), followed by restoration with a bulk fill composite (EvoCeram Bulk Fill, Ivoclar Vivadent).All light-activation procedures were performed with the VALO Grand (Ultradent) light-curing unit.A power analysis was conducted to determine the sample size to provide a power of at least 0.8 with α=0.05.Statistical analyses were performed using ANOVA and Tukey's test for multiple comparisons.Results: The intrapulpal temperature increased above a 10 o C to 20 o C threshold difference for all liners and bases that were light cured.When added as second layers, neither of those could provide thermal insulation following additional light-activated procedures (p=0.25).The higher the number of procedures requiring light-activation, the longer the pulp temperature remained in those increased temperature thresholds.Conclusions: For direct pulp capping procedures, a reduced number light activation procedures should be indicated to reduce the time intra-pulpal temperature rises above a 10 o C threshold.
DOI: 10.4317/jced.59779
Authors: D. Oliveira, M. Rocha, P. Zoidis, P. Pereira, A. Ribeiro
Institutions: University of Florida Health, University of Florida
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4288951622