Endodontic Procedural Errors: Frequency, Type of Error, and the Most Frequently Treated Tooth

Abstract

Introduction. The aim of this study is to determine the most common endodontically treated tooth and the most common error produced during treatment and to note the association of particular errors with particular teeth. Material and Methods. Periapical radiographs were taken of all the included teeth and were stored and assessed using DIGORA Optime. Teeth in each group were evaluated for presence or absence of procedural errors (i.e., overfill, underfill, ledge formation, perforations, apical transportation, and/or instrument separation) and the most frequent tooth to undergo endodontic treatment was also noted. Results. A total of 1748 root canal treated teeth were assessed, out of which 574 (32.8%) contained a procedural error. Out of these 397 (22.7%) were overfilled, 155 (8.9%) were underfilled, 16 (0.9%) had instrument separation, and 7 (0.4%) had apical transportation. The most frequently treated tooth was right permanent mandibular first molar (11.3%). The least commonly treated teeth were the permanent mandibular third molars (0.1%). Conclusion. Practitioners should show greater care to maintain accuracy of the working length throughout the procedure, as errors in length accounted for the vast majority of errors and special care should be taken when working on molars.

Complicated Root Canal Morphology of Mandibular Lateral Incisors Is Associated with the Presence of Distolingual Root in Mandibular First Molars: A Cone-beam Computed Tomographic Study in a Taiwanese Population

“…The permanent mandibular first molar (PMFM) is the first permanent molar to erupt into the oral cavity and is the tooth that most often requires root canal treatment (2). A growing body of evidence suggests that potential pulpal and periapical complications stem from variations in the anatomic and morphologic characteristics of roots and the canal morphology of PMFMs, such as taurodontism (3), C-shaped canals (4), middle mesial canals, fused roots, and distolingual roots (DLRs) (5)(6)(7).…”

Determination of success rate of root canal therapy performed by dentistry students in the Department of Endodontics at Birjand University of Medical Sciences, Birjand, Iran, during 2014-2017

“…According to a study conducted by Yousef et al entitled "Endodontic Errors: Frequency, Type of Error and Most Treated Teeth", it was reported that out of 1748 students under study, 574 (32.8%) cases committed at least one error. However, 13 students had no errors in a cross-sectional study, and the treatment success rate was estimated at 21% (15).…”

Retrieval of the Separated Canal Instruments Within the Root Canal During Root Canal Treatment Procedures: Case Series

“…Bu da apikal tıkaç oluş-turmada güçlüğe neden olurken, ayrıca apikal sızdırmaz-lığı da olumsuz olarak etkileyebilmektedir (27).…”