Avaliação da eficácia de remoção do material obturador do canal radicular: guta-percha versus real seal, usando duas diferentes técnicas de retratamento endodôntico
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Data
2007-06-29
Autores
Iorio, Lecy Schwantes [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
O objetivo deste trabalho foi comparar a qualidade da desobturação de canais radiculares obturados com guta-percha associada ao cimento AH PlusTM e Real SealTM (cones) associado ao cimento EpiphanyTM (Real SealTM), segundo duas diferentes técnicas de retratamento: com limas manuais Hedströem e com limas rotatórias ProTaper Retratamento, ambas associadas ao solvente eucaliptol. Para tanto, foram utilizados 60 dentes unirradiculares divididos em 4 grupos de 15 cada. Os canais dos grupos 1 e 2 foram obturados com guta-percha/AH PlusTM (Dentsply) e dos grupos 3 e 4 com Sistema Real SealTM, todos segundo a técnica híbrida modificada. Foram realizadas tomadas radiográficas nos sentidos mésio-distal e vestíbulo-lingual de maneira padronizada. Após 45 dias, os canais foram desobturados utilizando-se duas diferentes técnicas, ambas associadas ao uso do solvente eucaliptol: técnica mecânica com limas endodônticas Hedströem para os grupos 1 e 3 e utilizando-se as limas ProTaper Retratamento para os grupos 2 e 4. O tempo máximo estipulado para a desobturação foi de 13 min. Após desobturados, os espécimes foram novamente radiografados empregandose os moldes de padronização utilizados anteriormente. As radiografias foram escaneadas e avaliadas pelo Software Image Tool for Windows versão 1.28 (UTHSCA) quanto à porcentagem de material obturador remanescente. Os dados foram analisados por meio do teste de análise de variância de amostras independentes e teste de Tukey. Pôde-se concluir que a área de material obturador remanescente foi significativamente menor no grupo 4 (Real SealTM/Limas ProTaper® Retratamento), quando comparado aos outros 3 grupos; não houve diferença estatisticamente significante entre os grupos 1 e 2 quanto à área de material obturador remanescente, mostrando que a remoção de gutapercha foi realizada de maneira semelhante com limas...
This study compared the remaining filling material and working time removing gutta-percha/AH PlusTM and Real Seal/Epiphany from root filled extracted teeth. The root fillings were removed using eucalyptol and two different methods: ProTaper Retreatment and Hedströem files. Sixty extrated singlerooted were enlaged to size 35 and obturated using thermomechanical compactation technique. The canals of two groups were obturated using Real Seal and Epiphany sealer. The others were filled with gutta-percha and AH PlusTMsealer. One Epiphany group and one gutta-percha group was reinstrumented with Hedströem and in the other two groups, filling material was removed using Pro Taper Retreatment files. Radiographs were taken before and after the retreatment and the amount of remaining guttapercha/ Real Seal and sealer were quantified usingthe the software Image Tool. No significant differences were found for retreatment between guttapercha filled groups. Retreatment of specimens filled with Real Seal using ProTaper Retreatment files showed significantly less remaining filling material than the others three groups. In the groups filled with Real Seal/Epiphany, the filling was removed faster than groups filled with gutta-percha/AH PlusTM (p<0.05). The Real Seal/Epiphany removal using Hedströem files was faster than the other groups. KEYWORDS: endodontic retreatment, filling material, gutta-percha, rotary files, Hedströem files... (Complete abstract click electronic access below)
This study compared the remaining filling material and working time removing gutta-percha/AH PlusTM and Real Seal/Epiphany from root filled extracted teeth. The root fillings were removed using eucalyptol and two different methods: ProTaper Retreatment and Hedströem files. Sixty extrated singlerooted were enlaged to size 35 and obturated using thermomechanical compactation technique. The canals of two groups were obturated using Real Seal and Epiphany sealer. The others were filled with gutta-percha and AH PlusTMsealer. One Epiphany group and one gutta-percha group was reinstrumented with Hedströem and in the other two groups, filling material was removed using Pro Taper Retreatment files. Radiographs were taken before and after the retreatment and the amount of remaining guttapercha/ Real Seal and sealer were quantified usingthe the software Image Tool. No significant differences were found for retreatment between guttapercha filled groups. Retreatment of specimens filled with Real Seal using ProTaper Retreatment files showed significantly less remaining filling material than the others three groups. In the groups filled with Real Seal/Epiphany, the filling was removed faster than groups filled with gutta-percha/AH PlusTM (p<0.05). The Real Seal/Epiphany removal using Hedströem files was faster than the other groups. KEYWORDS: endodontic retreatment, filling material, gutta-percha, rotary files, Hedströem files... (Complete abstract click electronic access below)
Descrição
Palavras-chave
Endodontia, Obturações (Odontologia), Canal radicular - Tratamento, Retratamento endodôntico, Real seal, Guta-percha, Limas rotatórias, Hedstroem - Limas
Como citar
IORIO, Lecy Schwantes. Avaliação da eficácia de remoção do material obturador do canal radicular: guta-percha versus real seal, usando duas diferentes técnicas de retratamento endodôntico. 2007. 105 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Odontologia de São José dos Campos, 2007.