Efficacy of reciprocating instruments and final irrigant activation protocols on retreatment of mesiobuccal roots of maxillary molars: a micro-CT analysis
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Objectives: This study evaluated the efficacy of 3 reciprocating systems and the effects of 2 instruments for irrigant activation on filling material removal. Materials and methods: Forty mesiobuccal roots of maxillary molars were prepared up to size 25.06 and obturated. Micro-computed tomography (micro-CT) examination #1 was performed. Teeth were then divided into 4 groups (n = 10), according to the retreatment protocol: (1) manual, (2) Reciproc Blue, (3) WaveOne Gold, and (4) X1 Blue. Micro-CT examinations #2 and #3 were performed after filling removal and repreparation, respectively. Next, all teeth were divided into 2 new groups (n = 20) according to the irrigant activation protocol: XP Clean (XP Clean size 25.02) and Flatsonic (Flatsonic ultrasonic tip). Micro-CT examination #4 was performed after irrigant activation. Statistical analysis was performed with a significance level set at 5%. Results: WaveOne Gold removed a significantly greater amount of filling material than the manual group (p < 0.05). The time to reach the WL was similar for all reciprocating systems (p > 0.05). X1 Blue was faster than the manual group (p < 0.05). Only manual group improved the filling material removal after the repreparation stage (p < 0.05). Both activation protocols significantly improved the filling material removal (p < 0.05), without differences between them (p > 0.05). Conclusions: None of the tested instruments completely removed the filling material. X1 Blue size 25.06 reached the working length in the shortest time. XP Clean and Flatsonic improved the filling material removal.
Abstract
Objectives: This study evaluated the efficacy of 3 reciprocating systems and the effects of 2 instruments for irrigant activation on filling material removal. Materials and methods: Forty mesiobuccal roots of maxillary molars were prepared up to size 25.06 and obturated. Micro-computed tomography (micro-CT) examination #1 was performed. Teeth were then divided into 4 groups (n = 10), according to the retreatment protocol: (1) manual, (2) Reciproc Blue, (3) WaveOne Gold, and (4) X1 Blue. Micro-CT examinations #2 and #3 were performed after filling removal and repreparation, respectively. Next, all teeth were divided into 2 new groups (n = 20) according to the irrigant activation protocol: XP Clean (XP Clean size 25.02) and Flatsonic (Flatsonic ultrasonic tip). Micro-CT examination #4 was performed after irrigant activation. Statistical analysis was performed with a significance level set at 5%. Results: WaveOne Gold removed a significantly greater amount of filling material than the manual group (p < 0.05). The time to reach the WL was similar for all reciprocating systems (p > 0.05). X1 Blue was faster than the manual group (p < 0.05). Only manual group improved the filling material removal after the repreparation stage (p < 0.05). Both activation protocols significantly improved the filling material removal (p < 0.05), without differences between them (p > 0.05). Conclusions: None of the tested instruments completely removed the filling material. X1 Blue size 25.06 reached the working length in the shortest time. XP Clean and Flatsonic improved the filling material removal.
참고문헌 (34)
- Nudera WJ, "Selective root retreatment: a novel approach", J Endod, 41, pp.1382~1388 (2015)
- Soares C, "Comparison of endodontic retreatment in teeth obturated with resilon or gutta-percha: a review of literature", Iran Endod J, 10, pp.221~225 (2015)
- Virdee SS, "A practitioner’s guide to gutta-percha removal during endodontic retreatment", Br Dent J, 222, pp.251~257 (2017)
- Kim HC, "Cyclic fatigue and torsional resistance of two new nickel-titanium instruments used in reciprocation motion: Reciproc versus WaveOne", J Endod, 38, pp.541~544 (2012)
- Ferreira F, "Movement kinematics and cyclic fatigue of NiTi rotary instruments: a systematic review", Int Endod J, 50, pp.143~152 (2017)
- Klymus ME, "Effect of temperature on the cyclic fatigue resistance of thermally treated reciprocating instruments", Clin Oral Investig, 23, pp.3047~3052 (2019)
- Zupanc J, "New thermomechanically treated NiTi alloys - a review", Int Endod J, 51, pp.1088~1103 (2018)
- Gündoğar M, "Cyclic fatigue resistance of OneShape, HyFlex EDM, WaveOne Gold, and Reciproc Blue nickel-titanium instruments", J Endod, 43, pp.1192~1196 (2017)
- Silva E, "Cyclic fatigue and torsional resistance of four martensite-based nickel titanium reciprocating instruments", Eur Endod J, 5, pp.231~235 (2020)
- Nair PN, "Microbial status of apical root canal system of human mandibular first molars with primary apical periodontitis after “one-visit” endodontic treatment", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 99, pp.231~252 (2005)
- Belladonna FG, "Micro-computed tomography shaping ability assessment of the new blue thermal treated Reciproc instrument", J Endod, 44, pp.1146~1150 (2018)
- De-Deus G, "Micro-CT evaluation of non-instrumented canal areas with different enlargements performed by NiTi systems", Braz Dent J, 26, pp.624~629 (2015)
- Cavenago BC, "Efficacy of xylene and passive ultrasonic irrigation on remaining root filling material during retreatment of anatomically complex teeth", Int Endod J, 47, pp.1078~1083 (2014)
- Bernardes RA, "Comparison of three retreatment techniques with ultrasonic activation in flattened canals using micro-computed tomography and scanning electron microscopy", Int Endod J, 49, pp.890~897 (2016)
- Rivera-Peña ME, "Ultrasonic tips as an auxiliary method for the instrumentation of oval-shaped root canals", Braz Oral Res, 33, pp.e011~ (2019)
- Santos-Júnior AO, "New ultrasonic tip decreases uninstrumented surface and debris in flattened canals: a micro-computed tomographic study", J Endod, 46, pp.1712~1718 (2020)
- Colombo AP, "Efectiveness of the waveone and ProTaper D systems for removing gutta-percha with or without a solvent", Acta Odontol Latinoam, 29, pp.262~267 (2016)
- Schneider SW, "A comparison of canal preparations in straight and curved root canals", Oral Surg Oral Med Oral Pathol, 32, pp.271~275 (1971)
- Estrela C, "Method for determination of root curvature radius using cone-beam computed tomography images", Braz Dent J, 19, pp.114~118 (2008)
- Boutsioukis C, "The effect of needle-insertion depth on the irrigant flow in the root canal: evaluation using an unsteady computational fluid dynamics model", J Endod, 36, pp.1664~1668 (2010)
- Prado M, "Interactions between irrigants commonly used in endodontic practice: a chemical analysis", J Endod, 39, pp.505~510 (2013)
- Neelakantan P, "The impact of root dentine conditioning on sealing ability and push-out bond strength of an epoxy resin root canal sealer", Int Endod J, 44, pp.491~498 (2011)
- Torabinejad M, "Outcomes of nonsurgical retreatment and endodontic surgery: a systematic review", J Endod, 35, pp.930~937 (2009)
- Jung M, "The imaging of root canal obturation using micro-CT", Int Endod J, 38, pp.617~626 (2005)
- Bago I, "Evaluation of filling material remnants after basic preparation, apical enlargement and final irrigation in retreatment of severely curved root canals in extracted teeth", Int Endod J, 53, pp.962~973 (2020)
- Thomas JP, "Micro-computed tomographic evaluation of the shaping ability of Wave One Gold, TRUShape, EdgeCoil and XP-3D Shaper endodontic files in single, oval-shaped canals:an in vitro study", J Endod, 46, pp.244~251.e1 (2020)
- Pérez Morales ML, "Micro-computed tomographic assessment and comparative study of the shaping ability of 6 nickeltitanium files: an in vitro study", J Endod, 47, pp.812~819 (2021)
- Bramante CM, "Heat release, time required, and cleaning ability of MTwo R and ProTaper universal retreatment systems in the removal of filling material", J Endod, 36, pp.1870~1873 (2010)
- Zanettini PR, "In vitro comparison of different reciprocating systems used during endodontic retreatment", Aust Endod J, 34, pp.80~85 (2008)
- Rios MA, "Efficacy of 2 reciprocating systems compared with a rotary retreatment system for gutta-percha removal", J Endod, 40, pp.543~546 (2014)
- Kim HC, "Mechanical response of nickel-titanium instruments with different cross-sectional designs during shaping of simulated curved canals", Int Endod J, 42, pp.593~602 (2009)
- Alves FR, "Removal of root canal fillings in curved canals using either reciprocating single- or rotary multi-instrument systems and a supplementary step with the XP-Endo Finisher", J Endod, 42, pp.1114~1119 (2016)
- Martins MP, "Effectiveness of the ProTaper Next and Reciproc systems in removing root canal filling material with sonic or ultrasonic irrigation: a micro–computed tomographic study", J Endod, 43, pp.467~471 (2017)
- Fruchi LC, "Efficacy of reciprocating instruments for removing filling material in curved canals obturated with a single-cone technique: a micro-computed tomographic analysis", J Endod, 40, pp.1000~1004 (2014)
