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目的了解长沙市3～12岁儿童夜磨牙症的发生情况及相关影响因素。方法2006年6月-2007年4月在长沙市5个行政辖区随机抽取2 706名3～12岁儿童,对受试儿童家长就患儿睡眠状况进行问卷调查。采用Excel表格和SPSS 11.5软件进行数据处理。结果长沙市3～12岁儿童夜磨牙症发病率为9.5%。其中男9.7%,女9.3%,不同性别比较差异无统计学意义(χ2=0.120,P>0.05);3.0～5.9岁组、6.0～8.9岁组和9～12岁组儿童夜磨牙症的发生率分别为11.8%、10.4%和5.5%,不同年龄组间比较差异有统计学意义(χ2=20.588,P<0.01);睡眠姿势仰卧位组、侧卧位组和俯卧位组儿童磨牙症的发生率分别为6.7%、9.7%和11.5%,不同睡眠姿势组间比较差异有统计学意义(χ2=8.924,P<0.05)。打鼾、父亲磨牙、母亲磨牙、夜间睡眠中醒来或哭闹、易冲动好动、父亲狂躁或抑郁、无午睡习惯是儿童夜磨牙症发生的危险因素(P<0.05)。结论长沙市儿童夜磨牙症发病率较高,应引起重视。关注和改善不良影响因素有利于预防和减少夜磨牙症的发生。
Objective To understand the incidence of bruxism in children aged 3 ~ 12 years and related factors in Changsha city. Methods From June 2006 to April 2007, 2,706 children aged 3 to 12 years were randomly selected from 5 administrative districts of Changsha City to conduct a questionnaire survey on children ’s sleep status. Using Excel spreadsheet and SPSS 11.5 software for data processing. Results The incidence of bruxism in children aged 3 ~ 12 years in Changsha was 9.5%. Among them, 9.7% were male and 9.3% were female, with no significant difference between genders (χ2 = 0.120, P> 0.05). Occurrence of bruxism in children aged 3.0-5.9 years, 6.0-9.9 years and 9-12 years (11.8%, 10.4% and 5.5% respectively). There were significant differences among different age groups (χ2 = 20.588, P <0.01). In the supine position group, lateral position group and prone position group, The incidence rates were 6.7%, 9.7% and 11.5%, respectively. There were significant differences among different postures (χ2 = 8.924, P <0.05). Snoring, father molars, mothers molars, waking up or crying during nighttime sleep, easy to move easily, father manic or depression, no nap habit were the risk factors of brucellosis in children (P <0.05). Conclusion The prevalence of bruxism in children in Changsha City should be paid more attention. Pay attention to and improve the adverse impact factors will help prevent and reduce the occurrence of bruxism.