Prevalence of Dentin Hypersensitivity in a Target Subjects in Hanoi, Vietnam

BACKGROUND: Dentin hypersensitivity (DH) is a short pain when dentin is exposed to external stimuli such as: Thermal, vapor, rubbing, osmotic, or chemical stimuli without pathological or any other dental defect and in normal teeth, that level of stimulation is not sufficient to cause pain. Besides tooth decay and periodontal disease, DH is the top concern of Odonto-Stomatology doctors. AIM: The aim of this study was to study the prevalence of DH in Hanoi, Vietnam, in two groups (workers at Hanvico Company and dental students at the University of Medicine and Pharmacy, VNU, Hanoi, Vietnam). MATERIALS AND METHODS: The study was conducted on 500 subjects which consisted of 288 workers at Hanvico Company and 212 Odonto-Stomatology students at the University of Medicine and Pharmacy, VNU. The study subjects were examined intraorally and diagnosed with DH to vapor and tactile stimuli using the Yeaple Probe electronic probe. RESULTS: It was found that the prevalence of DH is 20.4% in Hanoi, Vietnam, with no difference between men and women. The highest prevalence of DH is in group 40–49 years of age group. CONCLUSION: It was found that there is a moderate prevalence of DH in Hanoi, Vietnam. The cervical wear, tooth wear, gingival shrinkage, and a diet high in acid showed a high prevalence of DH.