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Publication
Remoção de “Smear Layer” em endodontia - estudo in vitro com microscopia de varrimento de baixo vácuo
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| PPG_38822 | 1000.23 KB | Adobe PDF |
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Abstract(s)
Objetivos: Este trabalho “in vitro” teve por objetivo comparar a capacidade de limpeza da Irrigação Ultrassónica Passiva versus a ativação mecânica com XP-Endo Finisher® na remoção de “smear layer” das paredes radiculares A hipótese nula considerada foi a de que as duas técnicas seriam equivalentes nos níveis pré-estabelecidos.
Materiais e Métodos: Doze canais mesio-vestibulares foram instrumentados com o sistema ProTaper Next® até à lima X2 (25.06).. As raízes foram seccionadas longitudinalmente e um sulco padrão foi confeccionado na porção vestibular estendendo-se desde os 2 até aos 6 mm relativamente ao foramen apical. Ao longo do sulco foram realizadas demarcações horizontais, em relação ao longo eixo do canal radicular, a cada milímetro, num total de 5. A mesma raiz foi usada para preparar um grupo controlo negativo, um grupo controlo positivo e 2 grupos experimentais: Irrigação Ultrassónica Passiva e XP-Endo Finisher®. Por recurso à Microscopia Eletrónica de Varrimento de Baixo Vácuo, foram obtidas imagens padronizadas das 5 demarcações horizontais e avaliadas por 3 examinadores calibrados. O teste Kappa foi aplicado para determinar a concordância entre os examinadores e o teste Kruskal-Wallis e Dunn foram utilizados para comparar os escores. O nível de significância adotado foi de 5%.
Resultados: Os grupos experimentais - Irrigação Ultrassónica Passiva e XP-Endo Finisher® - apresentaram resultados estatisticamente semelhantes de capacidade de limpeza radicular
Conclusão: Os grupos experimentais - Irrigação Ultrassónica Passiva e XP-Endo Finisher® - apresentaram resultados estatisticamente semelhantes de capacidade de limpeza radicular.
Introduction: The aim of this study was to compare the eficacy of passive ultrasonic irrigation versus mechanical agitation of the irrigant promoted by the XP-Endo finisher® systems in removing “smear layer” from root canal walls, using Low Vacuum Scanning Electron Microscopy. Materials and Methods: Twelve mesiobucal curved root canals of mandibular molars were prepared with the ProTaper Next® system up to file X2 (25.06). The roots were longitudinally sectioned, and a standard groove was made in the buccal portion extending from 2 to 6 mm relative to the apical foramen. Along the groove, horizontal demarcations were made in relation to the long axis of the root canal, every millimeter, for a total of 5. The same root was used to prepare the negative control group, the positive control group and 2 experimental groups: Passive Ultrasonic Irrigation and XP-Endo Finisher®. Using Low Vacuum Scanning Electron Microscopy, standardized images of the 5 horizontal demarcations were obtained and evaluated by 3 previous calibrated examiners. The Kappa test was applied to determine the agreement between the examiners and the Kruskal-Wallis and Dunn tests were used to compare the scores. The adopted significance level was 5%. Results: The experimental groups - Passive Ultrasonic Irrigation and XP-Endo Finisher® - presented statistically similar results of root canal cleaning capacity Conclusions: The experimental groups - Passive Ultrasonic Irrigation and XP-Endo Finisher® - presented statistically similar results of root canal cleaning capacity.
Introduction: The aim of this study was to compare the eficacy of passive ultrasonic irrigation versus mechanical agitation of the irrigant promoted by the XP-Endo finisher® systems in removing “smear layer” from root canal walls, using Low Vacuum Scanning Electron Microscopy. Materials and Methods: Twelve mesiobucal curved root canals of mandibular molars were prepared with the ProTaper Next® system up to file X2 (25.06). The roots were longitudinally sectioned, and a standard groove was made in the buccal portion extending from 2 to 6 mm relative to the apical foramen. Along the groove, horizontal demarcations were made in relation to the long axis of the root canal, every millimeter, for a total of 5. The same root was used to prepare the negative control group, the positive control group and 2 experimental groups: Passive Ultrasonic Irrigation and XP-Endo Finisher®. Using Low Vacuum Scanning Electron Microscopy, standardized images of the 5 horizontal demarcations were obtained and evaluated by 3 previous calibrated examiners. The Kappa test was applied to determine the agreement between the examiners and the Kruskal-Wallis and Dunn tests were used to compare the scores. The adopted significance level was 5%. Results: The experimental groups - Passive Ultrasonic Irrigation and XP-Endo Finisher® - presented statistically similar results of root canal cleaning capacity Conclusions: The experimental groups - Passive Ultrasonic Irrigation and XP-Endo Finisher® - presented statistically similar results of root canal cleaning capacity.
Description
Keywords
Irrigação endodôntica Detritos Remoção Ultrasson XP-endo finisher® Microscopia electrónica de varredura ambiental Endodontics Smear layer Removal Passive ultrasonic irrigation XP-endo finisher® Low vacuum scanning electron microscopy