Survey of prevalence of xerostomia in a population of Kerman, Iran, attending medical and dental clinics

The effects of xerostomia on oral health have been studied for decades; however, the prevalence of this disorder in the general population remains controversial. The purpose of this study was to determine the prevalence of xerostomia in the population of Kerman, Iran. A total of 1010 subjects participated in this cross-sectional study. Study volunteers completed a standardized questionnaire regarding demographic data, history of systemic disease, use of medication, cigarette smoking, and etcetera. The Fox questionnaire was also completed to diagnose xerostomia. The prevalence of xerostomia in this study was 55% (59.9% among men and 49.9% among women). The mean age of the study population was 34.7 ± 12.1. 21.5% of cases had a systemic disease and 19% reported taking medication. Moreover, 25.9% of the participants (30% men and 4.6% women) smoked cigarettes or other tobacco products. Systemic disease, medication, and the use of tobacco products and opiates were found to be significant risk factors for xerostomia. The prevalence of xerostomia in our study was higher than that reported in other populations. Smoking and medication were significant risk factors for xerostomia.