Introduction: Physiological changes during pregnancy affect the teeth and tissues of the mouth and gums, which increases the severity of problems such as caries, inflammation, bleeding and swelling of the gum. Therefore, pregnant people need regular check-ups and provide adequate education. The aim of this study was evaluation of oral and dental health status in pregnant women referring to Fatemieh Hospital in Hamadan City during 2018. Methods: This study was performed on 96 pregnant women. The adjusted questionnaire was completed for each individual by interview method in order to complete the section on personal and pregnancy data and examination in order to complete the section on oral and dental health status. Statistical analysis was performed using SPSS version 16 software. Results: The mean age of the participants was 29.64. The Decay Missing Filling Teeth (DMFT) index in pregnant women was 10.48 ± 3.81. 75.74% of the participants were positive in terms of BOP. 12.50% had dry mouth. Using gingival index, 68.75% of the subjects had gingivitis and the mean gingival index was 0.98 ± 0.79%. In terms of oral hygiene, using the index plaque assessment, the majority of the participants was moderate (45.83%) and the mean plaque index was 1.27 ± 0.62%. Conclusion: Pregnant mothers have a moderate oral health. For this reason, it is necessary to inform physicians in order to refer them to dentists and educate pregnant women to observe oral hygiene and prevent the occurrence of oral diseases and gingivitis in pregnancy.