广东省中小城镇牙本质敏感的流行病学调查

目的：了解广东省中小城镇牙本质敏感的流行状况及影响因素。方法：采用多阶段、分层随机抽样方法，对广东省中小城镇800名成人进行牙本质敏感问卷调查和口腔检查，研究牙本质敏感的患病率，并对其在不同年龄段的分布，诱发因素，好发牙位，与附着丧失的关系等因素进行分析。结果：广东省中小城镇通过问卷调查牙本质敏感的发生率为38．6％，临床检查为27．2％。40～49岁为牙本质敏感的高峰期，最常见牙位为第一前磨牙，最常见的诱因是冷刺激，80．3％的牙本质敏感者存在有牙龈附着丧失。结论：广东省中小城镇牙本质敏感症广泛存在，应加大对牙本质敏感预防及治疗措施的宣传教育。

Epidemiological survey of dentine hypersensitivity in small town of Guangdong province

Objective：To investigate the prevalence and influential factors of dentine hypersensitivity in the small town of Guangdong province. Method： A multi-stage stratified random sampling method was used to select samples. The dentine hypersensitivity of all 800 cases were investigated with questionnaire and oral clinical examination. The prevalence, risk factors,age predilection, the correlation of gingival recession with dentine hypersensitivity were analysed. Result：309 people narrated by themselves that they had sensitive symptoms （38.6 %）, 128 people were diagnosed as dentine hypersensitivity by clinical examinations （27.2 %）.The peak age incidence was 41～ 50 years, Cold was the most common stimulus and the first premolar was the most common affected tooth. 80.3 % of the teeth with dentine hypersensitivity had gingival attachment loss. Conclusion：The prevalence of dentine hypersensitivity occurs in small town of Guangdong Province is widespread. The correct protective measure to dentine hypersensitivity should he publicized.