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Poor sleep quality and prevalence of probable sleep bruxism in primary and mixed dentitions: a cross-sectional study
Sleep and Breathing ( IF 2.162 ) Pub Date : 2018-12-19 , DOI: 10.1007/s11325-018-1771-y
Carla Massignan, Nashalie Andrade de Alencar, Josiane Pezzini Soares, Carla Miranda Santana, Junia Serra-Negra, Michele Bolan, Mariane Cardoso

Purpose

To investigate the prevalence of probable sleep bruxism (SB) in the primary and mixed dentitions using non-instrumental approach and evaluate whether sleep quality is associate with probable SB in different age ranges.

Methods

School-based cross-sectional study with children aged 2–5 (primary dentition, n = 372) and 8–10 years old (mixed dentition, n = 563) enrolled in public schools at Florianopolis and their parents. The sleep characteristics, socioeconomic status, and presence of probable SB were assessed using questionnaires. Seven trained examiners (Kappa > 0.7) assessed tooth wear. Children were selected following a stratified sample (2–5); and a system of the proportionality, first the schools of the sanitary districts and after the classrooms (8–10). Unadjusted and adjusted Poisson regression was performed with probable SB as a dependent variable. Independent variables were as follows: family income, parent schooling, drooling, tooth wear, and sleep quality. The independent variables presenting p value ≤ 0.20 were included in the adjusted model.

Results

The prevalence of probable SB was 22.3% in primary and 32.7% in mixed dentition. Probable SB was significantly associated with poor sleep quality (p < 0.001) in mixed dentition (PR 1.80; 95% CI 1.34–2.44) adjusting for age and drooling. In the primary dentition, the adjusted regression did not show association between analyzed characteristic and probable SB. Sex, socioeconomic, head of the household educational status, drooling, and tooth wear were not associated with probable SB in both dentitions.

Conclusion

Prevalence of probable SB is higher in mixed than in primary dentition and poor sleep quality is associated with probable SB in children aged 8–10 years.


中文翻译:

横断面研究:不良的睡眠质量和原牙和混合牙列可能的睡眠磨牙症患病率

目的

要调查使用非仪器方法在原牙和混合牙列中可能存在的睡眠磨牙症(SB)的患病率,并评估不同年龄段的睡眠质量是否与可能的SB有关。

方法

 在弗洛里亚诺波利斯及其父母的公立学校就读的以学校为基础的横断面研究,包括2-5岁的儿童(初级牙列,n  = 372)和8-10岁的孩子(混合牙列,n = 563)。使用调查表评估睡眠特征,社会经济状况和可能的SB。七名训练有素的检查员(Kappa> 0.7)评估了牙齿的磨损。根据分层样本(2-5)选择儿童。和比例制,首先是卫生区的学校,然后是教室(8-10)。使用可能的SB作为因变量执行未经调整和经过调整的Poisson回归。自变量如下:家庭收入,父母的受教育程度,流口水,牙齿磨损和睡眠质量。自变量呈现p值≤0.20包含在调整后的模型中。

结果

可能的SB患病率在原发性牙列为22.3%,在混合牙列中为32.7%。 调整年龄和流口水后,混合牙列中可能的SB与睡眠质量差(p <0.001)显着相关(PR 1.80; 95%CI 1.34–2.44)。在主牙系中,调整后的回归未显示分析的特征与可能的SB之间的关联。性别,社会经济,户主的教育状况,流口水和牙齿磨损与两种牙列中可能的SB无关。

结论

混合性可能SB的患病率高于原牙,并且8-10岁儿童中可能的SB与睡眠质量差有关。
更新日期:2018-12-19
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