Please use this identifier to cite or link to this item: http://hdl.handle.net/10923/867
Type: article
Title: Efficacy of ProTaper retreatment system in root canals filled with gutta-percha and two endodontic sealers
Author(s): Só, Marcus Vinicius Reis
Saran, Caroline
Magro, Miriam Lago
Vier-Pelisser, Fabiana Vieira
Munhoz, Marcelo
Publisher: Elsevier
Issue Date: 2008
Volume: 34
Issue: 10
First page: 1223
Last page: 1225
Keywords: ENDODONTICS
ENDODONTIC RETREATMENT
ROOT CANAL FILLING
ODONTOLOGIA
ENDODONTIA
TRATAMENTO DE CANAL RADICULAR
Abstract: This study evaluated the efficacy of ProTaper Universal rotary retreatment system and hand files for filling material removal during retreatment and the influence of sealer type on the presence of filling debris in the reinstrumented canals. The canals of 60 palatal roots of first molars were obturated with gutta-percha and either a zinc oxide–eugenol–based or a resin-based sealer and reinstrumented: G1, EndoFill/hand files; G2, AH Plus/hand files; G3, EndoFill/ProTaper; G4, AH Plus/ProTaper. Roots were cleaved and examined with an optical microscope, and the amount of filling debris on canal walls was analyzed on digitized images. There was no significant difference (P > .05) among the root canal thirds within each group. G3 presented significantly more filling debris than G1 in the cervical third (P = .04). In the middle third, G2/G3/G4 showed more debris than G1 (P = .03). The techniques were similar (P = .64) in the apical third. All groups presented filling debris in the 3 canal thirds after reinstrumentation.
URI: http://hdl.handle.net/10923/867
DOI: 10.1016/j.joen.2008.07.020
PMID: 18793925
ISSN: 0099-2399
Appears in Collections:Artigo de Periódico

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