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Abstract Aim To investigate the effect of a continuing education course on technical quality and treatment outcome for root filled permanent teeth in Møre and Romsdal County, Norway. Methodology Fifty‐two dentists employed in the Public Dental Service in Møre and Romsdal county, Norway, completed a two‐day continuing education course in root canal treatment. Periapical radiographs of root filled teeth treated before and after the course, with at least one‐year follow‐up were identified and scored for technical quality and periapical status. Technical root filling quality was assessed by density and length and the treatment outcome by PAI scores. Treatment information was achieved from the county's electronic dental record system. Information regarding the dental practitioners' background and treatment procedure routines was collected by a questionnaire. Descriptive statistics analyses and mixed‐effect logistic regression analyses were performed to evaluate the effect of the course. Results Radiographs were available for 224 teeth root filled before and for 221 teeth after the course. The proportion of teeth with adequate root filling quality was significantly lower after the course ( p = .006), associated mainly with short root fillings ( p 18 years. Conclusions A two‐day continuing education course in root canal treatment attended by Public Dental Service dentists in Norway did not improve the technical quality of root fillings or periapical status associated with root filled teeth.
Jordal et al. (Thu,) studied this question.