Efectiveness of the waveone and ProTaper D systems for removing gutta-percha with or without a solvent.

Endodontic retreatment requires complete removal of the filling material and access to the apical foramen. The purpose of this study was to evaluate the effectiveness of the Wave One reciprocating system and compare it to the ProTaper D rotarysystem, with or without the use of a solvent, in removing filling material from root canals. The time required for each filling removal technique employed was also determined and compared. Forty extracted human mandibular premolars with a single, straight, flattened canal were prepared and filled. They were divided into four groups (n = 10): Group 1: ProTaper D Ni Ti rotary instruments; Group 2: ProTaper D Ni Tirotary instruments, with a solvent; Group 3: Wave One primary instrument; and Group 4: Wave One primary instrument, with a solvent. The teeth were then split along their long axis and photographed using an operating microscope with 5Xmagnification. The amount of remaining filling material was assessed with Image Tool software. The results were compared using the Kruskal Wallis test (p <0.05). There was no significant difference between groups regarding the amount of residual filling material (p > 0.05). Operative time was significantly longer in Group 3 than in groups 1, 2 and 4 (p <0.05). The Wave One system and the ProTaper D system were equally effective, with or without a solvent. The time required to remove the filling material from the canals was significantly longer in Group 3 than in the other groups.

[1]  E. Silva,et al.  Effectiveness of rotatory and reciprocating movements in root canal filling material removal. , 2014, Brazilian oral research.

[2]  A. S. Kato,et al.  Efficacy of 2 reciprocating systems compared with a rotary retreatment system for gutta-percha removal. , 2014, Journal of endodontics.

[3]  R. Cunha,et al.  Efficacy of reciprocating and rotary techniques for removing filling material during root canal retreatment. , 2013, International endodontic journal.

[4]  B. Marques da Silva,et al.  Effectiveness of ProTaper, D-RaCe, and Mtwo retreatment files with and without supplementary instruments in the removal of root canal filling material. , 2012, International endodontic journal.

[5]  I. N. Rôças,et al.  Quantitative molecular and culture analyses of bacterial elimination in oval-shaped root canals by a single-file instrumentation technique. , 2012, International endodontic journal.

[6]  H. Ersev,et al.  The efficacy of ProTaper Universal rotary retreatment instrumentation to remove single gutta-percha cones cemented with several endodontic sealers. , 2012, International endodontic journal.

[7]  G. Plotino,et al.  Cyclic fatigue of Reciproc and WaveOne reciprocating instruments. , 2012, International endodontic journal.

[8]  E. Schäfer,et al.  Apically extruded debris with reciprocating single-file and full-sequence rotary instrumentation systems. , 2012, Journal of endodontics.

[9]  Giulio Gavini,et al.  Resistance to flexural fatigue of Reciproc R25 files under continuous rotation and reciprocating movement. , 2012, Journal of endodontics.

[10]  A. Kfir,et al.  The effectiveness of a self-adjusting file to remove residual gutta-percha after retreatment with rotary files. , 2012, International endodontic journal.

[11]  WooCheol Lee,et al.  Cyclic fatigue and torsional resistance of two new nickel-titanium instruments used in reciprocation motion: Reciproc versus WaveOne. , 2012, Journal of endodontics.

[12]  J. Siqueira,et al.  Dentinal tubule infection as the cause of recurrent disease and late endodontic treatment failure: a case report. , 2012, Journal of endodontics.

[13]  I. Tsesis,et al.  The efficacy of five techniques for removing root filling material: microscopic versus radiographic evaluation. , 2012, International endodontic journal.

[14]  J. Siqueira,et al.  Recurrent apical periodontitis and late endodontic treatment failure related to coronal leakage: a case report. , 2011, Journal of endodontics.

[15]  Julian Webber,et al.  The WaveOne single-file reciprocating system , 2011 .

[16]  I. G. de Moraes,et al.  Heat release, time required, and cleaning ability of MTwo R and ProTaper universal retreatment systems in the removal of filling material. , 2010, Journal of endodontics.

[17]  R. Cunha,et al.  In vitro evaluation of the effectiveness of ProTaper universal rotary retreatment system for gutta-percha removal with or without a solvent. , 2009, Journal of endodontics.

[18]  M. Torabinejad,et al.  Outcomes of nonsurgical retreatment and endodontic surgery: a systematic review. , 2009, Journal of endodontics.

[19]  F. Barletta,et al.  Computed tomography assessment of three techniques for removal of filling material. , 2008, Australian endodontic journal : the journal of the Australian Society of Endodontology Inc.

[20]  G Yared,et al.  Canal preparation using only one Ni-Ti rotary instrument: preliminary observations. , 2008, International endodontic journal.

[21]  F. Barletta,et al.  Effectiveness of different techniques for removing gutta-percha during retreatment. , 2005, International endodontic journal.

[22]  M. Hülsmann,et al.  Efficacy, cleaning ability and safety of different rotary NiTi instruments in root canal retreatment. , 2004, International endodontic journal.

[23]  J. Rhodes,et al.  The efficacy of gutta-percha removal using ProFiles. , 2001, International endodontic journal.

[24]  L. Wilcox.  Endodontic retreatment with halothane versus chloroform solvent. , 1995, Journal of endodontics.

[25]  G. B. Pelleu,et al.  Halothane and eucalyptol as alternatives to chloroform for softening gutta-percha. , 1991, Journal of endodontics.

[26]  B. Korzen,et al.  Evaluation of the apical seal produced by a hybrid root canal filling method, combining lateral condensation and thermatic compaction. , 1984, Journal of endodontics.