[Epidemiological survey of dentine hypersensitivity of 630 adults in rural of Sichuan province].

OBJECTIVE: To investigate the prevalence and potential risk factors of dentine hypersensitivity of adults in rural of Sichuan province. METHODS: All representative samples, including 630 adults living in rural of Sichuan Province, were selected by multi-stage, stratified and random sampling. The dentine hypersensitivity of all 630 cases was surveyed with questionnaire and oral clinical examination. SPSS 18.0 software was used for statistical analysis. RESULTS: 27.9% of all subjects were suffered from dentine hypersensitivity, sour was the most common stimulus of dentine hypersensitivity. The first premolar was the most common tooth with dentine hypersensitive, which occupied 27.4% of the total affected teeth. Female, acid regurgitation symptom, low frequency of toothbrush replacement (over 3 months), high tooth-brushing force and frequency of fresh fruits consumption (over 2 times per week) probably were high risk factors of dentine hypersensitivity. CONCLUSION: The prevalence of dentine hypersensitivity occurs in rural of Sichuan province is high, thus for future the publicity and education on dentine hypersensitivity preventive should be strengthened.