بررسی فراوانی آنومالیهای دندانی اکتسابی، تکاملی کلینیکی (سایش های دندانی، تغییر رنگ، فلورزیس، هایپو دونشیا، ماکرو دونشیا و شاخص سلامت دندانها در مراجعین دانشکده دندان پزشکی همدان

Introdution: Dental anomalies are an important category of dental morphologic variations. Their incidence is different between many populations. This study aimed to determine the frequency of dental anomalies and dental health index in patients referred to department of Oral Medicine of Hamadan dental faculty in 2014 Methods: In this descriptive cross sectinal  study 772 patients referred to department of oral medicine  were examined  for dental anomalies and biographic information, systemic diseases , receiving drugs and  DMFT index (Decay , Missing, Filling Teeth)  were recorded in their charts. Data were analyzed with SPSS 16 software using descreptive , chi square, t test and one-way ANOVA . P value lower than 5% was considered as significant. Results Out of 772 patients 218 (28.2%) were males and 554 (71.8%) were females and their mean age was 32.3. 70% of patients showed at least one dental anomaly. Attrition (40.2%), flourosis (20.3%), accessory cusps (15.7%), tooth discoloration (14.4%) and hypodontia (3.2%) had high frequency anomalies observed in patients. The mean of patients DMFT was 14.095.78. Conclusion: According to results of this study frequency of acquired dental anomalies was relatively common and   dental health index was low in studied population, therefore  dentists continious education  and oral health education for diagnose and prevention of possible problem for dentist and society  seems to be necessary.