Effect of training dentists in Evidence-Based Dentistry: an RCT

Methods: A four-arm cluster randomised trial in Dental Practices across Scotland. The fee group were offered fees for PFS placed; the education group invited to a EBD workshop; the both group offered fees plus workshop; the control group offered neither. The workshop, designed by clinicians and trainers experienced in such training, focussed on evidence seeking and literature appraisal rather than PFS technique. The main outcome measure was proportion of 12-14 year olds receiving PFS on second permanent molars. The outcome reported here was investigated by questionnaire, using reports of: research-related activities, evidence-seeking by journal or internet, and CPD records, summed to an impact score; and influence of the study on participation in and awareness of EBD and research.

Results: Of 149 recruited GDPs, 73% attended workshops, 63% claimed for PFS, and 85% completed questionnaires. No differences between dentists in education and non-education arms were found in: impact scores (t=0.758, df=123, p=0.450); reported influence of study involvement on course attendance, use of evidence etc. (X2=1.402, df=1, p=0.238), or increased interest/participation in research (X2=1.219, df=1, p=0.395). A significant difference was found in dentists' reported awareness of evidence-based practice, best practice and ability to find and evaluate evidence/information (X2=7.925, df=1, p=0.005).

Conclusions: EBD Education may reinforce dentists' ability to find, appraise and utilise research evidence relevant to clinical practice, but not necessarily on their level of such activity or their active participation in research. Funders: Chief Scientist's Office, Scottish Executive; Scottish Higher Education Funding Council.