Influence of the EDTA, Nd:YAG laser and association of both on the filling of artificial lateral root canals Influência do EDTA, do laser de Nd: YAG e da associação de ambos na obturação de canais laterais artificiais

This study aimed at evaluating the influence of EDTA, Nd:YAG laser and the combination of both for filling of artificial lateral root canals. Forty-five human mandibular premolars were employed, on which three artificial lateral root canals were prepared by means of a reamer with a similar diameter...

Full description

Bibliographic Details
Main Authors: Fernanda Gomes de Moraes, Clovis Monteiro Bramante, Ivaldo Gomes de Moraes, Everdan Carneiro, Renato Menezes
Format: Article
Language:English
Published: University of São Paulo 2004-03-01
Series:Journal of Applied Oral Science
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572004000100005
Description
Summary:This study aimed at evaluating the influence of EDTA, Nd:YAG laser and the combination of both for filling of artificial lateral root canals. Forty-five human mandibular premolars were employed, on which three artificial lateral root canals were prepared by means of a reamer with a similar diameter to a K file #15. The teeth were instrumented through the stepback technique employing Gates Glidden burs at the middle and cervical thirds and manual files at the apical portion, and irrigation with 1% sodium hypochloride. The teeth were divided in three groups: Group 1 -EDTA for 5 minutes; Group 2 -application of Nd:YAG laser at 15 Hz, 100 mJ and 1.5 Watts; and Group 3 - association of both. Roots were filled through the Tagger's hybrid technique, radiographed and the radiographs were digitized. Scores were assigned to the filling of the lateral root canals. Statistical analysis revealed no significant differences between the entire groups and also on the analysis of each third.<br>Este estudo teve como objetivo avaliar a ação do EDTA, do laser de Nd:YAG e a associação de ambos na obturação dos canais laterais artificiais. Foram utilizados 45 dentes pré-molares inferiores humanos, nos quais foram confeccionados três canais laterais com o auxílio de um alargador com diâmetro compatível de uma lima do tipo K número 15. Os dentes foram instrumentados pela técnica regressiva utilizando brocas de Gates Glidden nos terços cervical e médio e limas manuais no terço apical e irrigação com hipoclorito de sódio a 1 %. Os dentes foram divididos em três grupos: Grupo I EDTA por 5 minutos, Grupo II aplicação de laser de Nd:YAG com 15 Hz, 100mJ e 1,5 Watts e Grupo III a associação de ambos. As raízes foram obturadas pela técnica Híbrida de Tagger, radiografadas e as radiografias escaneadas. Para o preenchimento dos canais laterais foram dados escores. A análise estatística mostrou não haver diferença significante entre os grupos analisados globalmente e nem quando analisados por terços.
ISSN:1678-7757
1678-7765