Predictive factors in the retrieval of endodontic instruments: the relationship between the fragment length and location
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Objectives This study aimed to relate the file fragment length and location in the root canal to the retrieval chances, the clinical time required and the occurrence of secondary fractures. Materials and Methods Sixty clinical cases of fractured instruments were included in this study. They were classified according to the instrument length and the location of the root canal. In each group, the success rate in the instrument retrieval, the clinical time required and the occurrence of secondary fractures were evaluated. The collected data were analyzed using the Kruskal-Wallis test on the basis of a 0.05 significance level. Results The fragment length showed no significant influence on the assessed variables (p > 0.05). The root third where the instrument was located resulted in an increased clinical time, with statistically significant differences (p < 0.05). However, the procedure success rate and the occurrence of secondary fractures showed no association with these variables. Conclusions In accordance with the findings of this study, the fractured fragment length did not influence any of the variables assessed, but it is suggested to focus on the fragment location inside the root canal to decide the retrieval of a fractured instrument.
Abstract
Objectives This study aimed to relate the file fragment length and location in the root canal to the retrieval chances, the clinical time required and the occurrence of secondary fractures. Materials and Methods Sixty clinical cases of fractured instruments were included in this study. They were classified according to the instrument length and the location of the root canal. In each group, the success rate in the instrument retrieval, the clinical time required and the occurrence of secondary fractures were evaluated. The collected data were analyzed using the Kruskal-Wallis test on the basis of a 0.05 significance level. Results The fragment length showed no significant influence on the assessed variables (p > 0.05). The root third where the instrument was located resulted in an increased clinical time, with statistically significant differences (p < 0.05). However, the procedure success rate and the occurrence of secondary fractures showed no association with these variables. Conclusions In accordance with the findings of this study, the fractured fragment length did not influence any of the variables assessed, but it is suggested to focus on the fragment location inside the root canal to decide the retrieval of a fractured instrument.
참고문헌 (24)
- Nevares G, "Success rates for removing or bypassing fractured instruments : a prospective clinical study", J Endod, 38, pp.442~444 (2012)
- Madarati AA, "Management of intracanal separated instruments", J Endod, 39, pp.569~581 (2013)
- Parashos P, "Rotary NiTi instrument fracture and its consequences", J Endod, 32, pp.1031~1043 (2006)
- Terauchi Y, "Present status and future directions : Removal of fractured instruments", Int Endod J, 55(Supplement 3), pp.685~709 (2022)
- Mishra L, "The top 10 most-cited articles on the management of fractured instruments : a bibliometric analysis", Restor Dent Endod, 44, pp.e2~ (2018)
- Eskibağlar M, "Investigation of fracture prevalence of instruments used in root canal treatments at a faculty of dentistry : a prospective study", Restor Dent Endod, 48, pp.e38~ (2023)
- Setzer FC, "Influence of combined cyclic fatigue and torsional stress on the fracture point of nickel-titanium rotary instruments", J Endod, 39, pp.133~137 (2013)
- Alcalde MP, "Cyclic and torsional fatigue resistance of reciprocating single files manufactured by different nickel-titanium alloys", J Endod, 43, pp.1186~1191 (2017)
- Ferreira F, "Movement kinematics and cyclic fatigue of NiTi rotary instruments : a systematic review", Int Endod J, 50, pp.143~152 (2017)
- Mena-Álvarez J, "analysis of the importance of the motion used in the resistance of different mechanical instrumentation systems in endodontics : a comparative study", Materials(Basel), 15, pp.4443~ (2022)
- Thu M, "Cyclic fatigue resistance of rotary and reciprocating nickel-titanium instruments subjected to static and dynamic tests", J Endod, 46, pp.1752~1757 (2020)
- Alghamdi S, "Effect of curvature location on fatigue resistance of five nickel-titanium files determined at body temperature", J Endod, 46, pp.1682~1688 (2020)
- Silva EJNL, "Cyclic fatigue using severely curved canals and torsional resistance of thermally treated reciprocating instruments", Clin Oral Investig, 22, pp.2633~2638 (2018)
- Pedullà E, "Torsional, static, and dynamic cyclic fatigue resistance of reciprocating and continuous rotating nickel-titanium instruments", J Endod, 48, pp.1421~1427 (2022)
- Ninan E, "Torsion and bending properties of shape memory and superelastic nickel-titanium rotary instruments", J Endod, 39, pp.101~104 (2013)
- Xu X, "Comparative study of torsional and bending properties for six models of nickel-titanium root canal instruments with different cross-sections", J Endod, 32, pp.372~375 (2006)
- Silva E, "Cyclic fatigue and torsional resistance of four martensite-based nickel titanium reciprocating instruments", Eur Endod J, 5, pp.231~235 (2020)
- Fu M, "Effects of ultrasonic removal of fractured files from the middle third of root canals on the resistance to vertical root fracture", J Endod, 45, pp.1365~1370 (2019)
- Terauchi Y, "Factors affecting the removal time of separated instruments", J Endod, 47, pp.1245~1252 (2021)
- Pruthi PJ, "Comparative evaluation of the effectiveness of ultrasonic tips versus the Terauchi file retrieval kit for the removal of separated endodontic instruments", Restor Dent Endod, 45, pp.e14~ (2020)
- Yang Q, "Evaluation of two trephine techniques for removal of fractured rotary nickel-titanium instruments from root canals", J Endod, 43, pp.116~120 (2017)
- Terauchi Y, "Comparison of the time required to create secondary fracture of separated file fragments by using ultrasonic vibration under various canal conditions", J Endod, 39, pp.1300~1305 (2013)
- Arslan H, "Duration of ultrasonic activation causing secondary fractures during the removal of the separated instruments with different tapers", Clin Oral Investig, 24, pp.351~355 (2020)
- Mangeaud A, "R-Medic. A simple and intuitive statistical analysis software", Rev Methodo, 3, pp.18~22 (2018)