Abstract: PURPOSE: This study was conducted to evaluate the knowledge of primary school teachers regarding tooth trauma in Putuo district, Shanghai. METHODS: A questionnaire involving the knowledge of tooth trauma was designed. A total of 1 020 teachers from primary schools were invited to participate in the survey. SPSS 20.0 software package was used for statistical analysis of the data. RESULTS: A total of 973 valid questionnaires were collected. 74.8% of the respondents knew the information of the nearest medical institution dealing with dental trauma; 53.8% would first inform the parents when dental trauma occurred; 59.1% chose to leave the fractured teeth to the parents for treatment; 79.5 % knew that fourth graders had permanent anterior teeth. As to the preservation medium of broken teeth, 12.7% of the participating teachers chose the wrong answer.62.7% of the teachers answered correctly about the cleaning method of contaminated broken teeth. When asked about the best time to reimplant teeth, 19.6% of the teachers chose fewer than half an hour. Teachers' gender, age and whether they were trained before affected their scores of the scene simulation questions(P<0.05), and education background was not the most important factor (P>0.05). CONCLUSIONS: Primary school teachers in Putuo district partly mastered the emergency treatment knowledge of children's tooth trauma. Medical institutions and educational institutions need to strengthen training related to children's tooth trauma.

Key words: Tooth trauma, Pediatric dentistry, Primary school teacher