National Sleep Foundation

Chapter 7: Sleep-Related Movement Disorders

Prevalence of Sleep-Related Bruxism (SB)

Sleep-Related Bruxism (SB) is more prevalent in children, with 14% to 20% of children under age 11 experiencing the condition (according to parental reports). SB prevalence declines with age, from 13% of those aged 18 to 29, to 3% of adults aged 60 and older (mean rate of 8%).70 71

References 

70 Lavigne GJ, Manzini C, Huynh NT, “Sleep Bruxism,” in Kryger M, Roth T, Dement W (ed.), Principles and Practice of Sleep Medicine (5th Edition), St. Louis: Elsevier Saunders, 2011, pages 1128 - 1139.
71 Lavigne GJ, Kato T, Kolta A, Sessle BJ. Neurobiological mechanisms involved in sleep bruxism. Crit Rev Oral Biol Med. 2003;14:30-46