关键词: 口腔健康, 留守儿童, 问卷调查

Abstract: Objective To investigate the oral healthcare habits,concepts and knowledge of twelve years old "left-behind" (LB) children in the countryside of Henan province to lay foundation for the prevention of oral diseases in these children. Methods A total of 740 LB and 783 non-LB twelve year old children from the countryside of Henan province were selected and surveyed using stratified random sampling method.The survey questionnaire was developed according to the questionnaire used for twelve year old children in the the Third National Oral Health Epidemiological Survey.The questionnaires were answered on the spot in school. Results The ratio of eating sweet food,candy or chocolate,sugar-contained water,soft drinks and sugar-contained fruit juice in LB children were 39.3%,32.7%,23.7%,27.8% and 27.5%,respectively.42.6% LB children brushed teeth less than once a day or never.Very few children knew floss,floss usage and fluoride-contained toothpaste.Only less than half LB children knew some oral health knowledge whereas most LB children agreed with the importance of oral health.26.4% visited dentist in the past one year because of toothache. Conclusions The twelve year old LB children in Henan province are active for oral health.However,they lack oral health knowledge and often have wrong oral habits and concepts.There is a inconsistency between idea and action of LB children.

Key words: oral health, left-behind children, questionnaire survey