Prevalence and risk factors of sleep bruxism and wake-time tooth clenching in a 7- to 17-yr-old population

• Published in: European journal of oral sciences 2011-10, Vol.119 (5), p.386-394
• Main Authors: Carra, Maria Clotilde, Huynh, Nelly, Morton, Paul, Rompré, Pierre H., Papadakis, Athena, Remise, Claude, Lavigne, Gilles J.
• Format: Article
• Language: English
• Subjects: Adolescence; Adolescent; Adolescent Behavior - physiology; Age; Age Factors; Attention; Bruxism - epidemiology; Child; Children; Cross-Sectional Studies; Data processing; Dentistry; Fatigue; Female; Headache; Headache - epidemiology; Humans; Inventories; Jaw; Male; Malocclusion, Angle Class II - epidemiology; Masticatory Muscles - physiopathology; Mouth Breathing - epidemiology; Muscle Fatigue - physiology; Muscles; Orthodontics; Orthodontics, Corrective - statistics & numerical data; Prevalence; Quebec - epidemiology; Respiration; Risk Factors; Sleep; Sleep Apnea Syndromes - epidemiology; sleep bruxism; Sleep Bruxism - epidemiology; Sleep disorders; Sleep Stages - physiology; Sleep Wake Disorders - epidemiology; Snoring - epidemiology; Teeth; temporomandibular disorders; Temporomandibular joint; Temporomandibular Joint Disorders - epidemiology; tooth clenching; Tooth Wear - epidemiology
• ISSN: 0909-8836; 1600-0722
• DOI: 10.1111/j.1600-0722.2011.00846.x

Carra MC, Huynh N, Morton P, Rompré PH, Papadakis A, Remise C, Lavigne GJ. Prevalence and risk factors of sleep bruxism and wake‐time tooth clenching in a 7‐ to 17‐yr‐old population. 
 Eur J Oral Sci 2011; 119: 386–394. © 2011 Eur J Oral Sci Sleep‐related bruxism (SB) and wake‐time tooth clenching (TC) have been associated with temporomandibular disorders (TMDs), headache, and sleep and behavioral complaints. This study aimed to assess the prevalence and risk factors of these signs and symptoms in a 7‐ to 17‐yr‐old population (n = 604) seeking orthodontic treatment. Data were collected by questionnaire and by a clinical examination assessing craniofacial morphology and dental status. Sleep‐related bruxism was reported by 15% of the population and TC was reported by 12.4%. The SB group (n = 58) was mainly composed of children (67.3% were ≤12 yr of age) and the TC group (n = 42) was mainly composed of adolescents (78.6% were ≥13 yr of age). The craniofacial morphology of over 60% of SB subjects was dental class II and 28.1% were a brachyfacial type. Compared with controls (n = 220), SB subjects were more at risk of experiencing jaw muscle fatigue [adjusted OR (AOR) = 10.5], headache (AOR = 4.3), and loud breathing during sleep (AOR = 3.1). Compared with controls, TC subjects reported more temporomandibular joint clicking (AOR = 5), jaw muscle fatigue (AOR = 13.5), and several sleep and behavioral complaints. Sleep‐ and wake‐time parafunctions are frequently associated with signs and symptoms suggestive of TMDs, and with sleep and behavioral problems. Their clinical assessment during the planning of orthodontic treatment is recommended.