Association between polysomnographic parameters of sleep bruxism and attrition-type tooth wear.

Background: Clinically, sleep bruxism is considered to be associated with the presence of tooth wear, but strong evidence is still lacking.

Objective: To examine whether an association exists between polysomnographic parameters, recorded from patients with possible sleep bruxism and tooth wear.

Methods: Sixty-three possible sleep bruxers (19 males and 44 females, mean ± SD age = 38.