School of Dentistry, University of Taubaté, Taubaté, SP, Brazil.
Sleep Breath. 2011 May;15(2):215-20. doi: 10.1007/s11325-010-0427-3. Epub 2010 Oct 9.
Sleep bruxism (SB) in children may be related to headaches and causes extensive damage of primary teeth. This paper evaluates the incidence of SB in children from Itanhandu, MG, Brazil.
The presence of teeth wear facets was verified through clinical examinations on a sample of children, whose parents answered a questionnaire about their children's behavior and habits. Analysis of variance and chi-square tests (p = 0.05) were applied to identify possible correlations between the presence of SB and the parents' responses to the questionnaire.
The sample comprised of 170 children, 51.76% (n = 88) of which were girls, while the average age was 4.37 (±1.69) years. A total of 15.29% (n = 26) had been diagnosed as bruxers, 46.47% displayed restless behavior, and only 10% used medication. The average duration of breastfeeding was 4.4 (±0.25) months. A positive correlation was found between restless behavior and the presence of SB (p < 0.001). No correlation was found between SB and medication (p = 0.573), or between the duration of breastfeeding and restless behavior (p = 0.102), SB (p = 0.565) and medication (p = 0.794).
Restless behavior was positively correlated with SB, although no correlation was found between SB and medication or duration of breastfeeding.
儿童睡眠磨牙症（SB）可能与头痛有关，并导致乳牙广泛受损。本文评估了巴西米纳斯吉拉斯州伊塔南迪乌的儿童 SB 的发生率。
通过对儿童样本进行临床检查，验证牙齿磨损面的存在，其父母回答了一份关于孩子行为和习惯的问卷。应用方差分析和卡方检验（p=0.05）来确定 SB 的存在与父母对问卷的回答之间可能存在的相关性。
该样本包括 170 名儿童，其中 51.76%（n=88）为女孩，平均年龄为 4.37（±1.69）岁。共有 15.29%（n=26）被诊断为磨牙症，46.47%表现出不安行为，只有 10%使用药物。母乳喂养的平均持续时间为 4.4（±0.25）个月。不安行为与 SB 的存在呈正相关（p<0.001）。SB 与药物（p=0.573）、母乳喂养持续时间与不安行为（p=0.102）、SB（p=0.565）和药物（p=0.794）之间均无相关性。
不安行为与 SB 呈正相关，但 SB 与药物或母乳喂养持续时间之间无相关性。
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