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oliveira_ecg_dr_arafo.pdf: 6468829 bytes, checksum: 06aa87e31ff3b019783f2fa8c8c48c43 (MD5) / A proposta deste trabalho foi comparar, in vitro, a eficiência entre diferentes técnicas de remoção de material obturador quanto à limpeza das paredes dos canais radiculares obturados com cimentos endodônticos de diferentes composições químicas, e o tempo de trabalho. Foram utilizados 160 dentes unirradiculado humanos que foram instrumentados e obturados com cimentos Sealer 26 e guta percha (Grupo I), Endofill e guta percha (Grupo II), Sealapex e guta percha (Grupo III) e um cimento experimental à base de polímero da mamona e guta percha (Grupo IV). As raízes foram divididas em grupos de acordo com o cimento obturador utilizado e estes novamente divididos em subgrupos de 10 dentes cada de acordo com a técnica de retratamento endodontico: Sistema K3 , Sistema K3 e eucalipitol, Instrumentação manual, Instrumentação manual e eucalipitol. Os dentes foram radiografados em dois diferentes ângulos. Em seguida foram fraturados longitudinalmente e as imagens de material obturador residual eram calculadas por um programa ImageTool for Windows versão 3.0 e os resultados submetidos à análise estatística pelo teste ANOVA e Tukey. Os resultados mostraram que o tempo para o retratamento do cimento Sealer 26 foi significantemente maior para o Sistema K3 e para a técnica manual. Analisando a limpeza das paredes dos canais radiculares, podemos agrupar em ordem decrescente para o retratamento: Grupo I, Grupo IV, Grupo II, Grupo III e a técnica de retratamento endodôntico para a instrumentação manual demonstrou resultado melhor independente do uso do solvente. / The purpose of this study was to compare, in vitro, the efficiency among different techniques of endodontic retreatment analyzing the cleaning of the root canal walls filled whith endodontics sealers of different chemical compositions and in retreatment time. It was used 160 single root teed humans that were instrumented and filled with sealers Sealer 26 and gutta-percha (Group I), Endofill and gutta-percha (Group II), Sealapex and gutta-percha (Group III) and an experimental sealer based on castor oil polymer and gutta-percha (Group IV). The roots were divided in groups according to the filling sealers that were used. The roots were divided in groups according to the filling sealers that were used and these ones were divided again in subgroups of 10 teeth each one according to the techniques of endodontic retreatmente: Systems K3, Systems K3 and eucalyptol, hand instrumentation, hand instrumentation and eucalyptol. The teeth were radiographed in two different angles. They were fractured longitudinally and the images of the residual obturation material was calculated by the software ImageTool for Windows version 3.0 and the results were subjected to statistical analysis by the tests ANOVA and Tukey. The results showed that the retreatment time for Sealer 26 is significantly longer for the Systems K3 and for the hand instrumentation. Considering the cleaning of the cleaning of the canal walls, that were grouped in decreasing order as follows: Group I, Group IV, Group II, Group III and the techniques of endodontic retreatment for group hand instrumentation showed better results, independently of solvent used.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.unesp.br:11449/101656 |
| Date | 30 May 2005 |
| Creators | Oliveira, Eliane Cristina Gulin de [UNESP] |
| Contributors | Universidade Estadual Paulista (UNESP), Filho, Idomeo Bonetti [UNESP] |
| Publisher | Universidade Estadual Paulista (UNESP) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | 256 f. : il.color. |
| Source | Aleph, reponame:Repositório Institucional da UNESP, instname:Universidade Estadual Paulista, instacron:UNESP |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | -1, -1 |
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