| Objective:Corah's Dental Anxiety Scale and fear level questionnaire of situations resulting in dental anxiety were applied with combination of demographic data. This study aimed to assess the epidemic features of dental anxiety (DA) in adult patients and analyse the relevant factors contributing to adult DA, futher dowse epidemic characteristics and influence factors of DA in adult patients of Han nationality and Hui nationality, thus the results can be used to direct dentists'psychological intervention for DA patients before treatment in order to relieve patients'anxiety and best guarantee the prognosis.Methods:(1) 229 adult outpatients were selected for the questionnaire survey, Corah's Dental Anxiety Scale and fear level questionnaire of situations resulting in dental anxiety were applied. All participants completed the questionnaire according to the requirments and subjective perceptions.Epidemic characteristics and influence factors of DA were statistically analyzed.(2) 216 adult outpatients of Han nationality and 203 adult outpatients of Hui nationality were selected for the questionaire survey, Corah's Dental Anxiety Scale and fear level questionnaire of situations resulting in dental anxiety were applied. All participants completed the questionaire according to the requirments and subjective perceptions.Both groups were statistically analyzed in order to assess the differences in epidemic characteristics and influencing factors of DA.Results:(1)The prevalence rate of DA in adult patients is 26.6%.The mean DAS score is 10.45±3.33.Different prevalence rates of DA in groups of sex,direct trauma dental experience, indirect trauma dental experience, pain tolerance level and emotional tension level demonstrate notable statistical significance (P<0.05).Patients with indirect trauma dental experience, low pain tolerance level and who considers tooth extraction is most fearful therapy are prone to DA. At the same time, lying in the chair, painful feeling after anaesthesia and more treatment needed are risk factors of DA among the cases resulting in dental anxiety.(2) The prevalence rate of DA is 34.2% in adult patients of Han nationality and 45.0% in Hui nationality, and the difference of prevalence rate between two nationalities has no statistical significance (P>0.05).However, there are significant differences laid in impact factors related to DA. On one hand, the level of dental anxiety is positively correlated to education,indirect trauma dental experience, most fearful therapy, lying in the chair, painful feeling after anaesthesia and more treatment needed in adult patients of Han nationality, on the other hand, dental anxiety level of Hui nationality adult patients has positive correlation to'my turn', hearing the sound of dental drill and more treatment needed. Interestingly, both of them are negatively correlated to pain tolerance level. Conclusions:Adult DA is a multifactor associated disease.The results of this study show that patients with DA are more likely to be adult female who have painful direct or indirect trauma dental experience, lower pain tolerance level and higher emotional tension level.Indirect trauma dental experience, pain tolerance level, most fearful therapy, lying in the chair, painful feeling after anaesthesia and more treatment needed are risk factors of adult DA. The level of dental anxiety is positively correlated to education,indirect trauma dental experience, most fearful therapy, lying in the chair, painful feeling after anaesthesia and more treatment needed in adult patients of Han nationality, However, dental anxiety level of Hui nationality adult patients has positive correlation to'my turn',hearing the sound of dental drill and more treatment needed. And both of them are negatively correlated to pain tolerance level. |