Prevalence of probable sleep bruxism and associated factors in Brazilian schoolchildren

Abstract

Aim To determine the prevalence of probable sleep bruxism (PSB) and associated factors among schoolchildren. Design This cross‐sectional study was carried out with a representative sample of 440 schoolchildren. The children were submitted to a clinical oral examination for the evaluation of tooth wear and/or muscle discomfort. Parents/caregivers filled out a questionnaire with information related to characteristic sounds of sleep bruxism, sociodemographic factors, and the presence of harmful oral habits of children. The stress of the mothers was measured through the Lipp's Stress Symptoms Inventory for Adults (LSSI) instrument. The child's stress was measured through the Child Stress Scale (CSS). Data analysis included descriptive analysis and hierarchical Poisson regression (95% CI, P < 0.05). Results The prevalence of PSB was 40.0% (n = 176). The final Poisson regression model showed that PSB was significantly more prevalent in children with a history of nail biting (PR: 1.50; 95% CI: 1.19‐1.90; P = 0.001) and biting objects (PR: 1.30; 95% CI: 1.03‐1.63; P = 0.025) and less prevalent among girls (PR: 0.78; 95% CI: 0.63‐0.98; P = 0.033). Conclusions The prevalence of PSB in schoolchildren was high. Schoolchildren with a history of nail biting and biting objects had a higher prevalence of PSB.

Prevalence of sleep bruxism in children in primary dentition

“…In Brazilian researches including older children in mixed dentition, Drumond et al 9 and Feitosa et al 10 found a higher prevalence, 40% and 53.2%, respectively. The difference between these studies may be explained by the application of different methodologies and/or the differences between the age groups of the patients.…”

“…Preschoolers can develop habits that upset the balance between function and growth. In recent years, bruxism in children has become a growing concern, since more often parents seek out a pediatric dentist with this complaint, in addition, this parafunctional habit has a direct impact on quality of life, as it compromises the sleep period, in addition to be considered a risk factor for temporomandibular disorder and damage to the stomatognathic system [8][9][10][11] .…”

Ebeveynleri̇n Çocuk Ve Genç Eri̇şki̇nlerde Bruksi̇zm İle İlgi̇li̇ Bi̇lgi̇ Ve Tutumlarinin Değerlendi̇ri̇lmesi̇

“…6 Çocuklarda bruksizm sıklığı farklı araĢtırmalarda %3,5 ile %40,6 arasında, 5 %21, 17 %23,1, 10 %22,6, 18 %32,4 19 ve %40 olarak bulunmuĢtur. 20 Yapılan çalıĢmalarda ebeveynlerin çoğunun bruksizmin tanımını bilmedikleri ve bruksizm ile ilgili daha fazla bilgi almak istedikleri görülmüĢtür. 19 Prado ve ark.…”

Can Orofacial Structures Affect Tooth Morphology?

“…A study with 440 school children found prevalence of probable sleep bruxism in 40.0% of them. It was more prevalent between children with history of nail biting or biting objects [47].…”