Young Cecilia, Wong Kin Yau, Cheung Lim K
Private Practice, Hong Kong.
PLoS One. 2013 Sep 11;8(9):e74833. doi: 10.1371/journal.pone.0074833. eCollection 2013.
To investigate the effectiveness of educational posters in improving the knowledge level of primary and secondary school teachers regarding emergency management of dental trauma.
A cluster randomised controlled trial was conducted. 32 schools with a total of 515 teachers were randomised into intervention (poster) and control groups at the school level. Teachers' baseline levels of knowledge about dental trauma were obtained by using a questionnaire. Posters containing information on dental trauma management were displayed in the school medical room, the common room used by staff, and on a notice board for 2 weeks in each school of the intervention group; in the control group, no posters were displayed. Teachers in both groups completed the questionnaire after 2 weeks.
The teachers in the intervention schools (where posters were displayed for 2 weeks) showed statistically significant improvement in scores in cases where they had not previously learned about dental emergencies from sources other than first aid training, with an average score increase of 2.6656 (score range of questionnaire, -13 to 9; p-value <0.0001).
Educational posters on the management of dental trauma can significantly improve the level of knowledge of primary and secondary school teachers in Hong Kong. KClinicalTrials.com HKCTR-1307 ClinicalTrials.gov: NCT01707355.
探讨教育海报在提高中小学教师牙外伤应急处理知识水平方面的有效性。
进行一项整群随机对照试验。将32所学校共515名教师在学校层面随机分为干预组（海报组）和对照组。通过问卷调查获取教师关于牙外伤的基线知识水平。在干预组的每所学校，包含牙外伤处理信息的海报在学校医务室、教职工共用的休息室以及布告栏展示2周；对照组不展示海报。两组教师在2周后完成问卷。
在干预学校（海报展示2周）的教师中，对于那些之前并非从急救培训以外的途径了解过牙外伤急救知识的情况，其得分有统计学意义的提高，平均得分增加了2.6656（问卷得分范围为-13至9；p值<0.0001）。
关于牙外伤处理的教育海报能显著提高香港中小学教师的知识水平。KClinicalTrials.com HKCTR-1307 ClinicalTrials.gov：NCT01707355。
