Age is associated with self-reported sleep bruxism, independently of .It was higher in the groups ranging from 30 to 39 and 40 to 49 years of age in comparison to the groups composed of individuals older than 60 years of age. In the crude analyses, the prevalence of self-reported SB was associated with tooth loss, male, smoking, snoring, sleep talking and a history of childhood teeth grinding.fungsi cement grinding age,fungsi cement grinding age,Childhood Tooth Grinding | - Lifetime Dental CareChildhood Tooth Grinding. Tooth grinding or bruxism has long thought to be an adult issue. However, approximately 30% of children develop bruxism during the early-school years. It usually decreased by the age 7 or 8 and may stop completely by age 12, or once all of the permanent teeth have erupted.