The success rate of primary root canal treatment performed by undergraduate students using NiTi rotary instruments: a retrospective study
Article Sidebar
Main Article Content
Abstract
Objective: The aim of this study was to evaluate the success rate and various factors influencing the treatment outcome of primary root canal treatment performed by undergraduate students using NiTi rotary instruments.
Material and Methods: A total of 258 out of 379 dental chart records and corresponding radiographic photographs from endodontic treatments conducted from 2014-2019 at the College of Dental Medicine, Rangsit University, were included. Data on patient characteristics comprising age, sex, type of tooth, type of restoration, presence of pre-operative lesions, quality of the coronal restoration, and recall period were collected. Digital periapical radiographs taken before treatment initiation and during recall visits were assessed using the periapical index (PAI). The treatment success was evaluated based on healing criteria, as both the clinical and radiographic presentations were normal.
Results The recall period ranged from 6-689 months, with a mean of 15.99 (SD 49.68). The overall recall rate was 68.0%, with a dropout rate of 32.0% (ranging from 6-24 months). The overall success rate was 85.7%, and the healing rate was 10.5%. Significant correlations were found between treatment outcomes and pre-operative lesion presence as well as the quality of the root canal filling (p < 0.001). Additionally, significant correlations were identified between the success and pre-operative lesion presence as well as the quality of the root canal filling.
Conclusion: The overall success rate for primary root canal treatment performed by undergraduate students using NiTi rotary instruments was 85.7%. The variable factors that significantly correlate with the success are pre-operative lesion and the quality of the root canal filling.
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
References
Orstavik D, Kerekes K, Eriksen HM. The periapical index: a scoring system for radiographic assessment of apical periodontitis. Endod Dent Traumatol. 1986 Feb;2(1):20-34. doi: 10.1111/j.1600-9657.1986.tb00119.x.
Glickman GN. AAE Consensus Conference on Diagnostic Terminology: background and perspectives. J Endod. 2009 Dec;35(12): 1619-1620. doi: 10.1016/j.joen.2009.09.029.
Friedman S, Abitbol S, Lawrence HP. Treatment outcome in endodontics: the Toronto Study. Phase 1: initial treatment. J Endod. 2003 Dec;29(12):787-793. doi: 10.1097/00004770-200312000-00001.
Umanah A, Osagbemiro B, Arigbede A. Pattern of demand for endodontic treatment by adult patients in port-harcourt, South-South Nigeria. J West Afr Coll Surg. 2012 Jul;2(3):12-23.
Serene TP, Adams D, Saxena AK. Nickel-titanium instruments : applications in endodontics. 1995.
Sjogren U, Hagglund B, Sundqvist G, Wing K. Factors affecting the long-term results of endodontic treatment. J Endod. 1990 Oct;16(10):498-504. doi: 10.1016/S0099-2399(07)80180-4.
Sivavetpikul P, Wisithphrom K, Puapichartdumrong P. The outcome of endodontic treatment performed by dental students: A retrospective study. CU Dent J. 2019;42(1):39-52.
Chaisophin K. Success And Failure of Nonsurgical Root Canal Treatment Performed by Dental Students of Naresuan University, 2021. Graduate School of Naresuan University.
da Rocha JG, Lena IM, Trindade JL, Liedke GS, Morgental RD, Bier CAS. Outcome of endodontic treatments performed by Brazilian undergraduate students: 3- to 8-year follow up. Restor Dent Endod. 2022 Aug 18;47(3):e34. doi: 10.5395/rde.2022.47.e34.
Mamede-Neto I, Borges AH, Guedes OA, de Oliveira D, Pedro FL, Estrela C. Root canal transportation and centering ability of Nickel-Titanium rotary instruments in mandibular premolars assessed using cone-beam computed tomography. Open Dent J. 2017 Feb 14;11:71-78. doi: 10.2174/1874210601711010071.
Guelzow A, Stamm O, Martus P, Kielbassa AM. Comparative study of six rotary nickel-titanium systems and hand instrumentation for root canal preparation. Int Endod J. 2005 Oct;38(10):743-752. doi: 10.1111/j.1365-2591.2005.01010.x.
Burns LE, Kim J, Wu Y, Alzwaideh R, McGowan R, Sigurdsson A. Outcomes of primary root canal therapy: An updated systematic review of longitudinal clinical studies published between 2003 and 2020. Int Endod J. 2022 Jul;55(7):714-731. doi: 10.1111/iej.13736.
Shakiba B, Hamedy R, Pak JG, Barbizam JV, Ogawa R, White SN. Influence of increased patient age on longitudinal outcomes of root canal treatment: a systematic review. Gerodontology. 2017 Mar;34(1):101-109. doi: 10.1111/ger.12231.
Polyzos NK, Sarris KG, Pita AI, Mikrogeorgis GV, Lyroudia KM. Quality of Root Canal Fillings Performed by Undergraduate Students and the Related Factors on the Treatment Outcome: A 2- to 5-Year Follow-Up. Eur Endod J. 2018 Nov 21;3(3):179-185. doi: 10.14744/eej.2018.69077.
Heling I, Bialla-Shenkman S, Turetzky A, Horwitz J, Sela J. The outcome of teeth with periapical periodontitis treated with nonsurgical endodontic treatment: a computerized morphometric study. Quintessence Int. 2001 May;32(5):397-400.
Liang YH, Li G, Wesselink PR, Wu MK. Endodontic outcome predictors identified with periapical radiographs and cone-beam computed tomography scans. J Endod. 2011 Mar;37(3):326-331. doi: 10.1016/j.joen.2010.11.032.
Ng YL, Mann V, Rahbaran S, Lewsey J, Gulabivala K. Outcome of primary root canal treatment: systematic review of the literature -- Part 2. Influence of clinical factors. Int Endod J. 2008 Jan;41(1):6-31. doi: 10.1111/j.1365-2591.2007.01323.x.
Fernández R, Cardona JA, Cadavid D, Álvarez LG, Restrepo FA. Survival of Endodontically Treated Roots/Teeth Based on Periapical Health and Retention: A 10-year Retrospective Cohort Study. J Endod. 2017 Dec;43(12):2001-2008. doi: 10.1016/j.joen.2017.08.003.
Kielbassa AM, Frank W, Madaus T. Radiologic assessment of quality of root canal fillings and periapical status in an Austrian subpopulation - An observational study. PLoS One. 2017 May 2;12(5):e0176724. doi: 10.1371/journal.pone.0176724.
Gulabivala K, Ng YL. Factors that affect the outcomes of root canal treatment and retreatment-A reframing of the principles. Int Endod J. 2023 Mar;56 Suppl 2:82-115. doi: 10.1111/iej.13897.
Ross C, Scheetz J, Crim G, Caicedo R, Morelli J, Clark S. Variables affecting endodontic recall. Int Endod J. 2009 Mar;42(3):214-219. doi: 10.1111/j.1365-2591.2008.01504.x.
European Society of Endodontology. Undergraduate curriculum guidelines for endodontology. Int Endod J. 2001 Dec;34(8):574-80. doi: 10.1046/j.0143-2885.2001.00508.x.