Objective The current study aimed to evaluate the temperature rise in the dental pulp during treatment of dentin with 445-nm diode laser. Materials and methods Ten single-rooted human premolar teeth were randomly enumerated into 1 to 10. Teeth were embedded in a resin block, and a thermocouple was inserted into the pulp chamber. Cervical third of the crown were irradiated with 1, 1.5, 2, 2.5, and 3 W at time of irradiation of 10, 15, 30, and 60 s (CW, Non-contact mode), while immersed in a 37°C thermal bath. Results The maximum mean temperature rise in the dental pulp was 10.6°C achieved after irradiation with 3 W for 60 s and the lowest temperature increase achieved was 0.3°C with 1 W for 10 s. Conclusion Using the 445-nm diode laser, 0.2-1 W, CW up to 60 s; 1.5 W, CW up to 15 s; 2 W, CW, 10 s; and 2.5 W,CW, 10 s are considered biologically safe parameters for the dental pulp during dentine hypersensitivity treatment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.