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International Journal of Dentistry
Volume 2014 (2014), Article ID 684979, 11 pages
http://dx.doi.org/10.1155/2014/684979
Clinical Study

Outcome of Endodontic Treatments Made by Postgraduate Students in the Dental Clinic of Bretonneau Hospital

1Department of Conservative Dentistry and Endodontics, Dental Faculty, Descartes University Paris, 1 rue Maurice Arnoux, 92120 Montrouge, France
2Bretonneau Hospital, 23 rue Joseph de Maistre, 75018 Paris, France
3Department of Public Health, Dental Faculty, Descartes University Paris, 1 rue Maurice Arnoux, 92120 Montrouge, France
4Department of Conservative Dentistry and Endodontics, Charles Foix Hospital, 12 avenue de la République, 94200 Ivry-sur-Seine, France

Received 25 November 2013; Revised 20 January 2014; Accepted 21 January 2014; Published 20 March 2014

Academic Editor: Louis M. Lin

Copyright © 2014 Virginie Touboul et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. The objective of this retrospective study is double: (1) to assess the 1–4 years of outcome of endodontic treatment performed by postgraduate students in endodontics in the Dental Clinic of Bretonneau Hospital and (2) to examine outcome predictors. Method. 363 teeth in 296 patients were treated between 2007 and 2011. 183 patients (224 teeth) were lost during the followup. 113 patients were included in the study (recall: 38%), corresponding to 139 teeth of which 8 were extracted. 131 remaining teeth (36%) were examined clinically and radiographically. Apical periodontitis (AP) was absent (PAI = 1) or present (PAI ≥ 2). Outcome was classified as “healed,” “healing,” or “diseased”. Results. The success rate was 92%. No failure was observed among the 23 initial endodontic treatments. Among the 108 retreated teeth, 80% were “healed” and 11% were “healing.” An association was found between success rate and preoperative signs or symptoms (absent 95% versus present 83%), preoperative root filling density (inadequate 93% versus adequate 57%), but not between preoperative AP status and success. Conclusion. Outcomes in this retrospective study were similar to those previously reported. However, a larger sample size is needed to assess outcome predictors more precisely.