<![CDATA[Recurrent aphthous ulceration (RAU) is the most common oral mucosal disease which characterized by recurrent episodes of multiple or solitary painful ulcerations without association with systemic diseases. The objectives of our study were to investigate the relation of RAU to demographical, education level and smoking habit. The study was conducted on 120 patients, personal data (age, sex), site, level of education and smoking habit were taken. The results showed that females were affected more than males, the buccal mucosa and tongue (58 %, 24%) respectively were the most common site of occurrence. There was higher prevalence rate of RAU among patients with higher educational level (60%) and in non-smokers (93.3%)]]>
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