Avaliação dos protocolos de Easy Clean na remoção de detritos dos canais radiculares.

• Autor(a) principal: Custódio, Vitória Zinza [UNESP]
• Data de Publicação: 2020
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/213886
• topic: Dental pulp cavity; Hipoclorito de sódio; Cavidade pulpar

The aim of this study was to evaluate the effectiveness of different Easy Clean(EC) protocols by means of scanning electron microscopy. For that, 20 human lower premolars with curved canals were longitudinally sectioned and six hemispherical cavities was made along the vestibular section of each root canal. The cavities were filled with debris, except for the positive control group. 10 groups were created according to the final irrigation protocol: Group 1- positive control (no debris and no final irrigation); Group 2- negative control (with debris and without final irrigation); Group 3- conventional irrigation with 2.5% sodium hypochlorite (NaOCl); Group 4- conventional irrigation with 17% ethylenediaminetetraacetic acid (EDTA) followed by NaOCl; Group 5- EC with 3 cycles of 20 seconds (NaOCl-NaOCl-NaOCl); Group 6- EC with 3 cycles of 20 seconds (NaOCl-EDTA-NaOCl); Group 7- EC with a 60 seconds cycle (NaOCl); Group 8- EC with a 180 seconds cycle (NaOCl); Group 9- EC with 2 cycles of 60 seconds (EDTA-NaOCl); Group 10- EC with 2 cycles of 60 seconds (NaOCl-EDTA).The analysis of the specimens was performed by Scanning Electron Microscope (SEM) and was done by scoring: 1 - no debris in the dentinal tubules, 2- debris covering an area smaller than 50% of the dentinal tubules; 3- debris covering an area greater than 50% of the dentinal tubules; 4 – dentinal tubules covered entirely by debris. For statistical analysis, the kappa test was used for inter-examiner concordance, while the Kruskall-Wallis, Dunn and Friedman tests was used to compare the groups. The positive results that the groups of irrigation with Easy Clean using only NaOCl (groups 5, 7 and 8) gave positive results, being superior to the groups of conventional irrigation (groups 3 and 4) and negative control (group 2). The installation groups with Easy Clean associated with the use of EDTA (groups 6, 9 and 10) are unchanged to the positive control group in the removal of debris from the root canal and in the exposure of the dentinal tubules. Based on this study, it can conclude that groups 6, 9 and 10 were the most effective in removing debris and exposing the dentinal tubules of the root canal.