Banca de DEFESA: TALITA TARTARI

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE: TALITA TARTARI
DATA: 12/09/2013
HORA: 10:00
LOCAL: Auditório da Faculdade de Odontologia
TÍTULO: Efeito de diferentes soluções e regimes de irrigação na microdureza e rugosidade da dentina radicular
PALAVRAS-CHAVES: regimes de irrigação, dentina radicular
PÁGINAS: 30
GRANDE ÁREA: Ciências da Saúde
ÁREA: Odontologia
SUBÁREA: Clínica Odontológica
RESUMO: Irrigation solutions used in endodontic treatments reduces dentin microhardness, what facilitate the action of endodontic instruments but also may increase the chances of occur canal deviation. Association of solutions is necessary to completely removal of smear layer and disruption of bacterial biofilm. This study investigated the effect of sodium hypochlorite (NaOCl), ethylenediaminetetracetic (EDTA), etidronic (HEBP), and citric acid (CA) associated in different irrigation regimens on root dentin microhardness. Fourty-five root halves of single-rooted teeth were sectioned into thirds. The fragments were embedded in acrylic resin, polished, randomly assigned into 3 groups and treated as follows: G1 - saline solution; G2 - 5% NaOCl + 18% HEBP, mixed in equal parts; and G3 - 2.5% NaOCl. After measurements, the G3 samples were distributed into subgroups G4, G5 and G6, which were submitted to 17% EDTA, 10% CA and 9% HEBP, respectively. Following the new measuments, these groups received a final flush with 2.5% NaOCl, producing G7, G8 and G9. Microhardness was measured with a Knoop indenter under a 25-g load for 15-second, before and after treatments. The data were statistically analyzed using paired Student’s t-test (?<0.05) to compare values before and after treatments, and analysis of variance (ANOVA) (?<0.05) to detect any differences among root thirds. Except G1, all tested irrigation regimens significantly decreased the microhardness. There were no differences between root thirds before treatments and all root thirds exhibited equal responses to same treatment. Except saline, all tested irrigation regimens reduced the root dentin microhardness.
MEMBROS DA BANCA:
Externo ao Programa - 2323791 - ELIZA BURLAMAQUI KLAUTAU
Interno - 2170818 - OSCAR FACIOLA PESSOA
Presidente - 1640163 - PATRICIA DE ALMEIDA RODRIGUES DA SILVA E SOUZA