Efficacy of Diode Laser 940 nm in Dentine Hypersensitivity Reduction: A Clinical Trial

Abstract

Background: Dentin hypersensitivity is a discomfort arising from unprotected dentin as a response to heat, cold, touch, or pressure stimuli. Various treatment modalities, including laser light, have been used to manage such a problem. This study aims to evaluate the efficacy of diode laser 940 nm, with different powers in managing dentin hypersensitivity. Materials and Methods: A cross-sectional study was conducted from 1 January–5 April 2023 on a cohort of patients presented to the dental department clinics of our college with dentine hyper-sensitivity. A 10-second continuous mode diode laser light 940 nm at two different powers was used to evaluate its desensitizing effect for managing dentin hypersensitivity for six patients with a total number of teeth treated, 38 teeth. A jet of air/water was applied for a specific period and a certain distance from the tooth surface. Scores were documented for evaluating responses using the VAS scale. Results: A statistically significant decrease in dentine hypersensitivity was found immediately after one treatment session and after a 14-day follow-up period. Conclusions: It was established that using a diode laser (940 nm) successfully resolved instant and longstanding dentin hypersensitivity pain.