Evaluación topográfica de limas reciprocantes, posterior a la instrumentación de conductos curvos. Estudio ex vivo
Objective. To evaluate the wear (roughness) and topographic changes of the Wave One Gold primary and Reciproc Blue R25 files after instrumentation at 3, 6 and 9 uses in curved canals. Methods. Ex vivo study, consisting of 10 new Reciproc Blue R25 and 5 Wave One Gold primary reciprocating files and 4...
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| Published in: | Odontología sanmarquina Vol. 26; no. 1; p. e24450 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | Spanish |
| Published: |
03-01-2023
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| Online Access: | Get full text |
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| Summary: | Objective. To evaluate the wear (roughness) and topographic changes of the Wave One Gold primary and Reciproc Blue R25 files after instrumentation at 3, 6 and 9 uses in curved canals. Methods. Ex vivo study, consisting of 10 new Reciproc Blue R25 and 5 Wave One Gold primary reciprocating files and 46 mandibular first molars with severe curvature. Molars were divided into 2 groups (23 molars in each group): group 1 Reciproc Blue R25/.08 and group 2 Wave One Gold Primary (25/.07). Reciprocating files from the two groups were analyzed with the contact profilometer at 0, 3, 6 and 9 uses. The measurement was made in the apical, middle, and coronal thirds, and in each analysis, 2 files were observed with the Scanning Electron Microscope. Subsequently, the analysis in the SPSS version 26 IBM ® program was performed using t-Student and Anova tests for normality (p<0.05). Results. There is no significant difference between Wave One Gold primary and Reciproc Blue R25 (p>0.05) in any third of the file; however, there is a significant difference in the wear of the file after the ninth use at the three third levels: apical (p<0.001), middle (p=0.05), cervical (p=0.01). Conclusions. Wave One Gold primary and Reciproc Blue R25 files present superficial changes from the instrumentation of four root canals, the greatest deformation of the files occured at the apical level. The greater the use of the files, the greater the wear of the surface.
Objetivo. Evaluar el desgaste (rugosidad) y los cambios topográficos de las limas Wave One Gold Primary y Reciproc Blue R25 posterior a la instrumentación a los 3, 6 y 9 usos en conductos curvos. Métodos. Estudio ex vivo, constituido por 10 limas reciprocantes nuevas Reciproc Blue R25 y 5 Wave One Gold Primary y 46 primeros molares mandibulares con curvatura severa. Los molares fueron divididos en dos grupos (23 molares en cada uno): grupo 1 Reciproc Blue R25/.08 y grupo 2 Wave One Gold Primary (25/.07). Limas reciprocantes de los dos grupos fueron analizadas con el perfilómetro de contacto a los 0, 3, 6 y 9 usos; la medición se realizó en los tercios apical, medio, coronal y en cada análisis dos limas se observaron con el microscopio electrónico de barrido. Posteriormente, el análisis en el programa SPSS versión 26 IBM ®; fue realizado usando pruebas de normalidad, t- Student y ANOVA (p<0,05). Resultados. No existe diferencia significativa entre Wave One Gold Primary y Reciproc Blue R25 (p>0,05) en ningún tercio de la lima; sin embargo, existe diferencia significativa en el desgaste de la lima al noveno uso a nivel de los tres tercios: apical (p<0,001), medio (p=0,05), cervical (p=0,01). Conclusión. Limas Wave One Gold Primary y Reciproc Blue R25 presentan cambios superficiales a partir de la instrumentación de cuatro canales radiculares, la mayor deformación de las limas se presentó a nivel apical. Cuanto mayor es el uso de las limas, mayor desgaste de la superficie se presenta. |
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| ISSN: | 1560-9111 1609-8617 |
| DOI: | 10.15381/os.v26i1.24450 |