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Evaluation of solvents, NiTi instruments, methods and protocols employed in the of root canal retreatments


In the case of endodontic failure, one of the resources for the resolution is the Endodontic retreatment. During root canal desobturation, can be used solvents to dissolv the material and facilitate its removal. Numerous methods of desobturation have being proposed, using nickel-Titanium instruments. The Nickel-titanium alloys has been suffering thermal treatment seeking greater flexibility in the League. Another important factor in retreatment is cleaning of waste material and debris in istmus and anfractuosity areas. However the agitation of the irrigate solution or solvent can favor the removal of material. The objective of the project will be analysed by microtomography uand confocal microscopy, the ability of desobturation of nickel titanium instruments with different treatments of the League and different movements. Another objective will be to analyze the antimicrobial effect of the solvent of gutta-percha in biofilms in situ. Will be analyzed the effect of ultrasonic agitation of the solvent or sodium hypochlorite to clean the root canal.So 4 subprojects will be developed. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RODRIGUES, CLARISSA TELES; HUNGARO DUARTE, MARCO ANTONIO; DE ALMEIDA, MARCELA MILANEZI; DE ANDRADE, FLAVIANA BOMBARDA; BERNARDINELI, NORBERTI. Efficacy of CM-Wire, M-Wire; and Nickel-Titanium Instruments for Removing Filling Material from Curved Root Canals: A Micro-Computed Tomography Study. JOURNAL OF ENDODONTICS, v. 42, n. 11, p. 1651-1655, . (15/03829-1)
FURQUIM CANALI, LYZ CRISTINA; DUQUE, JUSSARO ALVES; VIVAN, RODRIGO RICCI; BRAMANTE, CLOVIS MONTEIRO; REIS SO, MARCUS VINICIUS; HUNGARO DUARTE, MARCO ANTONIO. Comparison of efficiency of the retreatment procedure between Wave One Gold and Wave One systems by Micro-CT and confocal microscopy: an in vitro study. CLINICAL ORAL INVESTIGATIONS, v. 23, n. 1, p. 337-343, . (15/03829-1)
BORGES, MARIANA M. B.; DUQUE, JUSSARO A.; ZANCAN, RAFAELA F.; VIVAN, RODRIGO R.; BERNARDES, RICARDO A.; DUARTE, MARCO A. H.. Efficacy of reciprocating systems for removing root filling material plus complementary cleaning methods in flattened canals: Microtomography and scanning electron microscopy study. MICROSCOPY RESEARCH AND TECHNIQUE, v. 82, n. 7, p. 1057-1064, . (15/03829-1)

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