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Ríos-Osorio N, Caviedes-Bucheli J, Murcia-Celedón J, Gutiérrez C, Sierra-Collazo D, Alvarado-Caicedo B, Serchiaro-Monsalve M, Echavarria-Sarabia P, Leon-Lazzo A, Rivera-Rojas H, Castrillón-Ramos K, Supelano-Gallego A, Bermúdez-Zuluaga L, Jimenez-Peña O. Comparison of dynamic cyclic fatigue resistance of Reciproc® Blue and WaveOne® Gold after sterilization and/or immersion in sodium hypochlorite. J Clin Exp Dent 2024; 16:e1-e10. [PMID: 38314336 PMCID: PMC10837797 DOI: 10.4317/jced.60870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 11/14/2023] [Indexed: 02/06/2024] Open
Abstract
Background This study aims to compare the cyclic fatigue resistance (CFR) of the Reciproc Blue and WaveOne Gold instruments under a dynamic cyclical fatigue test. Material and Methods 210 Reciproc Blue "R25" and WaveOne Gold "primary" files were assigned into 7 groups (n =15) for each brand. Groups G: Files were not exposed to NaOCl or sterilization. Groups A and D: files were immersed for 3 minutes in NaOCl 1 and 3 times, respectively. Groups B and E: Files were autoclaved 1 and 3 times, respectively. Groups C and F: files were exposed to both, NaOCl immersion and autoclaving 1 and 3 times, respectively. Subsequently, files underwent a dynamic CFR test. The chemical composition of the files' surface from Group G was analysed by energy-dispersive X-ray spectroscopy (EDS). Cyclic fatigue resistance time was statistically analysed using 1-way and 2-way analyses of variance (ANOVA) and T-test. A p-value ≤0,05 was set to be statistically significant. Results There was a significantly higher CFR of RB files than WOG in groups A, B, C, D and G (p<0.05). WOG files were superior to RB in group E (p>0.05). There were no statistically significant differences between files in group F (p>0.05). RB files from groups B, C, D, E and F had significantly lower resistance than new ones (Group G) (p<0.05). WaveOne Gold files exposed to 5 % NaOCl immersion in combination with sterilization cycles (Groups C and F) had significantly lower CFR than new ones (p<0.05). Reciproc Blue and WaveOne Gold NiTi alloys differed in atomic wt % of carbon, oxygen, nickel and titanium. Conclusions The Reciproc Blue files outperformed the WaveOne Gold files in terms of CFR. The Reciproc Blue files were more vulnerable to the cycles of NaOCl immersion or autoclave sterilisation. The combined autoclaving and NaOCl cycles had the most significant impact on the mechanical properties of both files. Key words:Cyclic fatigue, Reciproc blue, Wave one gold, Dynamic test, Simulated channels, Sodium hypochlorite, Sterilization.
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Affiliation(s)
- Néstor Ríos-Osorio
- DDS, MSc. Research Department COC- CICO, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Javier Caviedes-Bucheli
- DDS, MSc. Centro de Investigaciones Odontológicas Pontificia Universidad Javeriana Bogotá, Colombia
| | - Juan Murcia-Celedón
- DDS. Research Department COC- CICO, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Cristina Gutiérrez
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Diana Sierra-Collazo
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Brandon Alvarado-Caicedo
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Mariangel Serchiaro-Monsalve
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Paola Echavarria-Sarabia
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Andrea Leon-Lazzo
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Helen Rivera-Rojas
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Kathy Castrillón-Ramos
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Alfredo Supelano-Gallego
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Luisa Bermúdez-Zuluaga
- DDS. Postgraduate Endodontics Department, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Oscar Jimenez-Peña
- DDS, MSc, PHD. Research Department COC- CICO, Institución Universitaria Colegios de Colombia UNICOC, Bogotá, Colombia
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Dos Reis FAS, Abu Hasna A, Ragozzini G, de Moura FB, Campos TMB, de Martin AS, Carvalho CAT, Bueno CES. Assessing the cyclic fatigue resistance and sterilization effects on replica-like endodontic instruments compared to Reciproc Blue. Sci Rep 2023; 13:22956. [PMID: 38151487 PMCID: PMC10752872 DOI: 10.1038/s41598-023-50096-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/15/2023] [Indexed: 12/29/2023] Open
Abstract
This study aimed to evaluate the effect of the number of uses and autoclave sterilization on the cyclic fatigue resistance of four replica-like instruments RC Blue; Only One File Blue; Recip One Blue; and Micro Blue compared to the original system Reciproc Blue (VDW, Munich, Germany). The instruments were analyzed by scanning electron microscope (SEM) before being used in root canal instrumentation (baseline). Fifty molars were instrumented by ten instruments (n=10). After sterilization in an autoclave, the instruments were analyzed by SEM. This procedure was repeated twice more using different molars, totaling 3 rounds of instrumentation, sterilization and SEM analysis. Then, ten different instruments from each brand were tested for cyclic fatigue resistance. Number of uses data were analyzed using Chi-squared analysis, and cyclic fatigue data were analyzed by one-way Anova followed by Tukey's test as the data had normal distribution. The fracture times for all systems had no significant difference, but Micro Blue had significantly lower values than the other systems (p < 0.05). The SEM analysis showed distortions in the instruments after the 3rd use. Therefore, all tested instruments except of Micro Blue have similar resistance to cyclic fatigue, and all are reliable for use in up to 2-cases.
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Affiliation(s)
| | - Amjad Abu Hasna
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University (UNESP), Av. Eng. Francisco José Longo Avenue 777, São José dos Campos, SP, CEP 12245-000, Brazil.
- School of Dentistry, Universidad Espíritu Santo, Samborondón, Ecuador.
| | - Gustavo Ragozzini
- Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Endodontia, Campinas, SP, Brazil
| | - Felipe Bernardo de Moura
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University (UNESP), Av. Eng. Francisco José Longo Avenue 777, São José dos Campos, SP, CEP 12245-000, Brazil
| | | | | | - Cláudio Antonio Talge Carvalho
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University (UNESP), Av. Eng. Francisco José Longo Avenue 777, São José dos Campos, SP, CEP 12245-000, Brazil
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dos Reis FAS, Abu Hasna A, Ragozzini G, de Moura FB, Campos TMB, de Martin AS, Carvalho CAT, Bueno CES. Assessing the cyclic fatigue resistance and sterilization effects on replica-like endodontic instruments compared to Reciproc Blue. Sci Rep 2023; 13:22956. [DOI: https:/doi.org/10.1038/s41598-023-50096-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/15/2023] [Indexed: 01/17/2024] Open
Abstract
AbstractThis study aimed to evaluate the effect of the number of uses and autoclave sterilization on the cyclic fatigue resistance of four replica-like instruments RC Blue; Only One File Blue; Recip One Blue; and Micro Blue compared to the original system Reciproc Blue (VDW, Munich, Germany). The instruments were analyzed by scanning electron microscope (SEM) before being used in root canal instrumentation (baseline). Fifty molars were instrumented by ten instruments (n=10). After sterilization in an autoclave, the instruments were analyzed by SEM. This procedure was repeated twice more using different molars, totaling 3 rounds of instrumentation, sterilization and SEM analysis. Then, ten different instruments from each brand were tested for cyclic fatigue resistance. Number of uses data were analyzed using Chi-squared analysis, and cyclic fatigue data were analyzed by one-way Anova followed by Tukey’s test as the data had normal distribution. The fracture times for all systems had no significant difference, but Micro Blue had significantly lower values than the other systems (p < 0.05). The SEM analysis showed distortions in the instruments after the 3rd use. Therefore, all tested instruments except of Micro Blue have similar resistance to cyclic fatigue, and all are reliable for use in up to 2-cases.
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