Aim. This study aimed to compare the efficacy of Tetraclean and 17% EDTA as final irrigants in the removal of the smear layer in the coronal, middle and apical thirds of the instrumented root canal. Methods. Forty extracted human permanent teeth (n =10) were randomly assigned to the following groups: (1) control group, the root canals were not submitted to any smear layer removal procedure, (2) EDTA group, (3) Liquid Tetraclean group (only liquid component of Tetraclean), (4) Tetraclean group, (powder + liquid). The specimens were submitted to scanning electron microscopy analysis. Magnifications of 500X and 1000X were used to evaluate cleaning at the apical, middle, and cervical thirds according to a three-point scoring system. Data were statistically analyzed using the Kruskal-Wallis analysis of variance test (5% significance level). Results. When the entire canal was considered, groups were ranked in the following order: 1>2≥3=4 (p<0.05). For different sections of the canal space, distance from the apex (2, 6 and 10 mm) influenced smear layer removal within each group (p<0.05). Conclusions. The use of a chelating agent leads to a higher removal of smear layer from the root canal walls. Differences between EDTA and Tetraclean were only evident at 6 mm from the apex, whereas at 2 mm both protocols had similar performances in smear layer removal from the root canal system of single-rooted permanent teeth.
Chiappetta, E., Paragliola, R., Franco, V., Fabiani, C., Franciosi, G., Grandini, S. (2011). Comparison of smear layer removal ability using different protocols for the final rinse optimization. In Colngresso Nazionale dei Docenti di Discipline Odontostomatologiche.
Comparison of smear layer removal ability using different protocols for the final rinse optimization
R. Paragliola;GRANDINI, SIMONE
2011-01-01
Abstract
Aim. This study aimed to compare the efficacy of Tetraclean and 17% EDTA as final irrigants in the removal of the smear layer in the coronal, middle and apical thirds of the instrumented root canal. Methods. Forty extracted human permanent teeth (n =10) were randomly assigned to the following groups: (1) control group, the root canals were not submitted to any smear layer removal procedure, (2) EDTA group, (3) Liquid Tetraclean group (only liquid component of Tetraclean), (4) Tetraclean group, (powder + liquid). The specimens were submitted to scanning electron microscopy analysis. Magnifications of 500X and 1000X were used to evaluate cleaning at the apical, middle, and cervical thirds according to a three-point scoring system. Data were statistically analyzed using the Kruskal-Wallis analysis of variance test (5% significance level). Results. When the entire canal was considered, groups were ranked in the following order: 1>2≥3=4 (p<0.05). For different sections of the canal space, distance from the apex (2, 6 and 10 mm) influenced smear layer removal within each group (p<0.05). Conclusions. The use of a chelating agent leads to a higher removal of smear layer from the root canal walls. Differences between EDTA and Tetraclean were only evident at 6 mm from the apex, whereas at 2 mm both protocols had similar performances in smear layer removal from the root canal system of single-rooted permanent teeth.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/11365/36048
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