Graduate Program in Dentistry, Federal University of Pelotas, Gonçalves Chaves St, 457, 96015-560, Pelotas, RS, Brazil.
Graduate Program in Epidemiology, Federal University of Pelotas, Marechal Deodoro St, 1160, 96020-220, Pelotas, RS, Brazil.
J Dent. 2019 Apr;83:27-32. doi: 10.1016/j.jdent.2019.02.003. Epub 2019 Mar 6.
This study aimed to assess the prevalence of bruxism and its relationship with common mental disorders (CMD) during the life course of individuals.
A representative sample (n = 537) of all 5914 births occurring in Pelotas in 1982 were prospectively investigated regarding their oral health. The CMD screening was assessed through Self-Reported Questionnaire-20 (SRQ-20) at ages 22 and 30. Bruxism information was collected in the oral health survey at the age 31. Exploratory variables included demographic and socio-economic, mental health and unhealthy behaviours. Multivariate Poisson Regression analysis was used to estimate the association between bruxism and CMD.
Bruxism prevalence was 41.1% at 31 years old. Presence of bruxism was positively associated with females (p = 0.003), lower school level (p = 0.001), and smoking habits (p = 0.021). CMD episodes were associated with bruxism (p < 0.001). Individuals presenting CMD at age of 30 years presented a 57% higher prevalence (PR 1.57; 95%CI 1.14-2.15) of bruxism, while in those individuals who presented CMD in both follow-ups (at 22 and 30 years old) the bruxism prevalence was 70% higher (PR 1.70; 95%CI 1.28-2.25).
Subjects presenting signals and symptoms of common mental disorders during their life course presented higher prevalence of bruxism.
The presence of common mental disorders during life course impacts in the presence of bruxism in the adulthood. In addition, more episodes of common mental disorders were associated with higher prevalence of bruxism.
本研究旨在评估个体一生中磨牙症的患病率及其与常见精神障碍（CMD）的关系。
对 1982 年在佩洛塔斯出生的所有 5914 名婴儿的代表性样本（n=537）进行前瞻性调查，以了解其口腔健康状况。CMD 筛查采用自我报告问卷-20（SRQ-20）在 22 岁和 30 岁时进行评估。在 31 岁时的口腔健康调查中收集磨牙症信息。探索性变量包括人口统计学和社会经济因素、心理健康和不健康行为。采用多变量泊松回归分析评估磨牙症与 CMD 之间的关联。
31 岁时磨牙症的患病率为 41.1%。存在磨牙症与女性（p=0.003）、较低的受教育程度（p=0.001）和吸烟习惯（p=0.021）呈正相关。CMD 发作与磨牙症有关（p<0.001）。30 岁时患有 CMD 的个体出现磨牙症的患病率高出 57%（PR 1.57；95%CI 1.14-2.15），而在两个随访（22 岁和 30 岁）中均患有 CMD 的个体中，磨牙症的患病率高出 70%（PR 1.70；95%CI 1.28-2.25）。
一生中出现常见精神障碍信号和症状的个体磨牙症患病率较高。
一生中常见精神障碍的存在会影响成年后磨牙症的发生。此外，更多的常见精神障碍发作与磨牙症的高患病率相关。
