Treatment of dentin hypersensitivity with a low‐level laser‐emitting toothbrush: double‐blind randomised clinical trial of efficacy and safety

Lasers have been successfully attempted in the management of dentinal
hypersensitivity. Diode laser within the toothbrush emits red
light in the visible spectrum. The desensitizing effect is
produced by laser irradiation inducing odontoblastic cellular
metabolism hyperactivity which occludes the dentinal tubules
by formation of tertiary dentine. In addition to this, laser
radiation can cause reduction of cellular membrane action
potential and depolarization of nerve fibers thereby blocking
pain transmission.
Studies have found low-level laser emitting toothbrush to be a safe and effective treatment option for dentinal hypersensitivity