title: Root canal treatment in Denmark is most often carried out in carious vital molar teeth and retreatments are rare.
abstract: OBJECTIVE
  To study the reasons given by a representative sample of Danish general dental practitioners (GDPs) for undertaking root canal treatment and, to investigate their confidence in performing root canal treatment on molar teeth.
  
  
  METHODS
  A questionnaire was sent to 600 Danish GDPs randomly selected from the roster of the Danish Dental Association. They were asked to recall various factors about their experience of the last root filling they completed, including the reason for treatment and the pulp diagnosis. Self-assessments on 100-mm visual analogue scales (VAS) were reported concerning the confidence in performing root canal treatment of a molar. End-point definitions were 'very easy' (0) and 'very difficult' (100), respectively. Time reports of molar treatments were given in categorized groups.
  
  
  RESULTS
  The most frequent reason for performing root canal treatment was caries within the tooth involved (55%). The majority of treatments involved teeth with vital pulps (54%). Retreatments were carried out in 2% of the cases. The confidence in performing root canal treatment varied but was relatively high, expressed as VAS-values below 50. The creation of an aseptic working field was regarded as the most difficult procedure followed by root canal preparation. Fifty-six percent of the responders stated a time frame of 46-75 min to complete root filling in a molar tooth.
  
  
  CONCLUSIONS
  Root canal treatment in Denmark was reported to be undertaken most often because of caries. Treatment was typically performed in molar teeth with vital pulp. Even though apical periodontitis was frequently noted in root filled teeth, retreatments were rare. From a subjective perspective root canal treatment was not considered to be very difficult and was carried out relatively rapidly.
authors.affiliation: Department of Cariology and Endodontology, University of Copenhagen, Copenhagen, Denmark. lb@odont.ku.dk
authors.forename: L
authors.initials: L
authors.lastname: Bjørndal
authors.forename: M H
authors.initials: MH
authors.lastname: Laustsen
authors.forename: C
authors.initials: C
authors.lastname: Reit
mesh_terms: D000704:Analysis of Variance; D002983:Clinical Competence; D003718:Denmark; D003731:Dental Caries / Q000150:complications* / Q000628:therapy; D004708:Endodontics; D005260:Female; D005792:General Practice, Dental / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008963:Molar; D009010:Monte Carlo Method; D019239:Practice Patterns, Dentists' / Q000706:statistics & numerical data*; D011671:Pulpitis / Q000209:etiology / Q000628:therapy; D019233:Retreatment / Q000706:statistics & numerical data; D012390:Root Canal Therapy / Q000706:statistics & numerical data*; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D000078329:Workforce