evaluating oral hygiene knowledge and attitude of pregnant women

background: the purpose of this study was to describe the knowledge and attitude of pregnant women in qazvin province, central iran, relating to oral hygiene. methods: the study group comprised of 760 pregnant women living in qazvin, center of iran in 2004. the questions were formulated to evaluate information without the need for dental examination. the age groups between 17-41 years old were randomly selected and a question was given to woman in three family planning center. statistical analysis was done by spss. results: 94.4% responded the questionnaire and participated in statistical procedure. 73.1% of the patients used to brush their teeth at least twice a day and also 70.3% used to brush their teeth after meal. conclusion: health authorities should strengthen the implementation of community- based oral disease prevention and health promotion programmes. more importance must be given to oral health care center in family planning centers.