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 occurrs in rural of Sichuan province is high, thus for future the publicity and education on dentine hypersensitivity preventive should be strengthened.
