Persistence of Residues after Endodontic Retreatment related to the Obturation Technique and to the Solvent
Matheus Coelho Bandéca, Milton C Kuga, Keren CF Jordão-Basso, Mateus R Tonetto, Arturo J Aranda-Garcia, Fernando A Vázquez-Garcia, Suellen NL Lima, Jardel C do Carmo Monteiro
Citation Information :
Bandéca MC, Kuga MC, Jordão-Basso KC, Tonetto MR, Aranda-Garcia AJ, Vázquez-Garcia FA, Lima SN, Monteiro JC. Persistence of Residues after Endodontic Retreatment related to the Obturation Technique and to the Solvent. World J Dent 2017; 8 (1):41-44.
To quantify the persistence of residues after endodontic retreatment related to the root canal obturation technique (lateral compaction or single cone) previously performed and the solvent used (xylol or Endosolv-R) in the cervical and root apical segment using digital radiograph.
Materials and methods
Forty root canals were prepared using the F2 instrument and filled with gutta-percha and AH Plus, 20 canals using #25 point by lateral compaction and the other 20 using F2 point by single cone. The root canals were transversely sectioned, and two segments (cervical and apical) were obtained. Radiographs were taken from the segment in buccolingual and mesiodistal direction, as well as the area that was originally filled with the root canal obturation was measured using ImageJ. After the specimens were set on special devices, the obturations were removed using the rotary system and divided into four groups (n = 10): G1 — lateral compaction and xylol; G2 — lateral compaction and Endosolv-R; G3 — single cone and xylol; and G4 — single cone and Endosolv-R. A new radiograph was taken and the area occupied by residues was measured. The persistence of residues was obtained from the obturation remaining in the root canal in percentage. The data were analyzed using Kruskal—Wallis test (p = 0.05).
Results
There was no difference among the examined groups, regardless of the radicular segment or the radiograph direction (p > 0.05).
Conclusion
The endodontic retreatment using xylol or Endosolv-R in the obturations previously performed by lateral compaction or single cone technique presented similar persistence of residues in the root canal, regardless of the radicular segment.
How to cite this article
Aranda-Garcia AJ, Kuga MC, Vázquez-Garcia FA, Tonetto MR, Bandeca MC, Lima SNL, Freitas J, Borges AH, Jordão-Basso KCF, do Carmo Monteiro JC. Persistence of Residues after Endodontic Retreatment related to the Obturation Technique and to the Solvent. World J Dent 2017;8(1):41-44.
Effectiveness of ProTaper retreatment system associated with organic solvents in the removal of root canal filling material. World J Dent 2013 Jul;4(3):203-207.
Effectiveness of rotary or manual techniques for removing a 6-year-old filling material. Braz Dent J 2010;21(2):148-152.
Impact of remaining zinc oxide-eugenolbased sealer on the bond strength of a resinous sealer to dentine after root canal retreatment. Int Endod J 2014 May;47(5):463-469.
Discuss the factors that affect the outcome of endodontic treatment. Aust Endod J 2009 Aug;35(2):98-107.
Clinical microscopic analysis of ProTaper retreatment system efficacy considering root canal thirds using three endodontic sealers. Microsc Res Tech 2012 Sep;75(9):1233-1236.
Effectiveness of rotatory and reciprocating movements in root canal filling material removal. Braz Oral Res 2015 Dec;29:1-6.
Efficacy of different solvents in removing gutta-percha from curved root canals: a micro-computed tomography study. Aust Endod J 2014 Aug;40(2):76-80.
Efficacy of reciprocating and rotary techniques for removing filling material during root canal retreatment. Int Endod J 2013 Oct;46(10):947-953.
Comparative analysis of efficacy and cleaning ability of hand and rotary devices for gutta-percha removal in root canal retreatment: an in vitro study. J Contemp Dent Pract 2013 Jul;14(4):635-643.
Persistence of epoxy-based sealer residues in dentin treated with different chemical removal protocols. Scanning 2013 Jan-Feb;35(1):17-21.
The effect of endodontic solutions on resorcinol-formalin paste in teeth. J Endod 2005 Jan;31(1):25-29.
The efficacy of different sealer removal protocols on bonding of self-etching adhesives to AH plus-contaminated dentin. J Endod 2009 Apr;35(4):563-567.
Evaluation of softening ability of Xylene and Endosolv-R on three different epoxy resin based sealers within 1 to 2 minutes – an in vitro study. Restor Dent Endod 2014 Feb;39(1):17-23.
Efficacy of ProTaper universal rotary retreatment system for gutta-percha removal from oval root canals: a micro-computed tomography study. J Endod 2012 Nov;38(11):1516-1520.
Endodontic retreatment of thermafil or lateral condensation obturations in post space prepared teeth. J Endod 1994 Jan;20(1):9-12.
Retreatability of a bioceramic root canal sealing material. J Endod 2011 Nov;37(11):1547-1549.
Percentage of gutta-percha in mesial canals of mandibular molars obturated by lateral compaction or single cone techniques. Microsc Res Tech 2012 Sep;75(9):1229-1232.
Removal of filling materials from oval-shaped canals using laser irradiation: a micro-computed tomographic study. J Endod 2015 Feb;41(2):219-224.
In vitro evaluation of the effectiveness of ProTaper universal rotary retreatment system for gutta-percha removal with or without a solvent. J Endod 2009 Nov;35(11):1580-1583.
Computer-assisted photomicrographic evaluation of root canal morphology after removal of the filling material during retreatment. Rom J Morphol Embryol 2011;52 (suppl 1):443-448.
