University of Oulu

Rapo H, Oikarinen-Juusola K, Laitala M-L, Pesonen P, Anttonen V. Outcomes of Endodontic Treatments Performed by Dental Students - A Follow-Up Study. J Dent Oral Biol. 2017; 2(6): 1046.

Outcomes of endodontic treatments performed by dental students : a follow-up study

Saved in:
Author: Rapo, Heli1; Oikarinen-Juusola, Kristiina1; Laitala, Marja-Liisa1;
Organizations: 1Department of Pedodontics, Cardiology and Endodontics, Research Unit of Oral Health Sciences, University of Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.9 MB)
Persistent link:
Language: English
Published: Remedy Publications, 2017
Publish Date: 2018-01-30


Aim: We aimed to evaluate the quality of the root canal treatments performed by undergraduate dental students.

Material and Methods: Data comprised 105 teeth of which digital radiographs were analyzed. Radiographic periapical findings at baseline were compared with those after the follow-up period. Properties of the root fillings i.e. length and density, as well as types of teeth were considered in analyses. Patients with missing information i.e. no diagnosis or poor quality radiographs, were excluded.

Results: Second premolar was the most common tooth for endodontic treatment. Teeth with preoperative periapical lesions had healing rate of 84.0%, when the respective figure for teeth without preoperative periapical lesions was 96.7%. The best healing rate was detected in mandibular premolars and poorest in mandibular incisors and canines. Maxillary molars had biggest proportion of negative changes. Outcome was significantly better for root fillings of optimal length compared to those which were not (p=0.019). Teeth with filling material outside the apex were noticed to have the lowest healing rate (69.2%). No effect on periapical healing due to the use of posts was observed. Isolating the root canal filling was associated with better outcome compared to the situation without any isolation.

Conclusion: In our study, the outcome of endodontic treatments by dental students was better than reported in earlier studies. Good outcome was associated with good quality of root fillings. There still are unnecessary short-comings in recording diagnosis and the course of treatment.

see all

Series: Journal of dentistry and oral biology
ISSN: 2475-5680
ISSN-E: 2475-5680
ISSN-L: 2475-5680
Volume: 2
Issue: 6
Article number: 1046
Type of Publication: A1 Journal article – refereed
Field of Science: 313 Dentistry
Copyright information: Copyright © 2017 Marja-Liisa Laitala. 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.