Abstract: Objective To analyze the logistic regression analysis of the status and related risk factors of pediatric dental caries. Methods 322 children who did physical examination and saw the doctor in hospital were selected, then were retrospectively analyzed, Patient data were collected by questionnaire. The status of children with dental caries and related risk factors were analyzed. Results 322 cases were examined, including 132 cases of dental caries, the percentage of dental caries was 41.0% overall. Caries group children had no significant difference in age and sex（P> 0.05）.The proportion of maxillary teeth with caries (29.5%) was significantly lower than that of mandibular teeth (70.5%)（P<0.05）. Sleep sweets, bedtime brushing habits and frequency of tooth brushing and other factors were significantly different, P<0.05. Logistic regression analysis showed that hobby sweets, lack of knowledge of oral health, too short brushing time , were the risk factors of dental caries in children（P<0.05）. Conclusion Children have a higher level of dental caries, poor oral hygiene, so it is recommended to regularly organize children’s oral examination and the popularity of oral health education.

Key words: children with caries, risk factors, oral hygiene, Logistic regression analysis