Effectiveness of educational poster on knowledge of emergency management of dental trauma--part 2: cluster randomised controlled trial for secondary school students

PLoS One. 2014 Aug 5;9(8):e101972. doi: 10.1371/journal.pone.0101972. eCollection 2014.

Abstract

Objective: To investigate the effectiveness of educational poster on improving secondary school students' knowledge of emergency management of dental trauma.

Methods: A cluster randomised controlled trial was conducted. 16 schools with total 671 secondary students who can read Chinese or English were randomised into intervention (poster, 8 schools, 364 students) and control groups (8 schools, 305 students) at the school level. Baseline knowledge of dental trauma was obtained by a questionnaire. Poster containing information of dental trauma management was displayed in a classroom for 2 weeks in each school in the intervention group whereas in the control group there was no display of such posters. Students of both groups completed the same questionnaire after 2 weeks.

Results: Two-week display of posters improved the knowledge score by 1.25 (p-value = 0.0407) on average.

Conclusion: Educational poster on dental trauma management significantly improved the level of knowledge of secondary school students in Hong Kong.

Trial registration: HKClinicalTrial.com HKCTR-1343 ClinicalTrials.gov NCT01809457.

Publication types

  • Multicenter Study
  • Randomized Controlled Trial

MeSH terms

  • Adolescent
  • Adult
  • Child
  • Dental Care / methods*
  • Emergencies*
  • Female
  • Health Education / methods*
  • Humans
  • Information Dissemination / methods
  • Knowledge*
  • Male
  • Posters as Topic*
  • Program Evaluation
  • Schools
  • Students
  • Tooth Injuries / therapy*
  • Young Adult

Associated data

  • ClinicalTrials.gov/NCT01809457

Grants and funding

The study is self-funded by the principal investigator.