Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UNIGRANRIO |
Texto Completo: | http://localhost:8080/tede/handle/tede/118 |
Resumo: | The aim of this study was to evaluate the influence of sterilization on the mechanical properties of Reciproc® R25 instrument (VDW, Munich, Germany). Bending tests were performed in 45° cantilever, rotating bending, stereomicroscopy and scanning electron microscopy. The stereomicroscopy assessed the tip angle, helix angle, taper and tip diameter of the instruments. The scanning electron microscopy evaluated the surface fracture after rotating bending test to check for possible differences between the groups. The bending test at 45° determined bending force to the original and autoclaved instruments, and rotating bending test time fatigue life. 4 groups were analyzed. Group 1 was composed of the instruments as received, the other groups were composed of sterile instruments 2, 4 and 6 times, each with 10 instruments, totaling a n of 40 instruments Reciproc® R25. The statistical test performed to compare the flexibility and time to fracture was the ANOVA with significance level of 5%. As for the characterization, instruments met the recommendation of ANSI / ADA 101. The scanning electron microscopy showed no difference in the finish and the fracture surface of the instruments as received and autoclaved. The data obtained in the flexural tests on 45 and rotating bending showed no statistically significant difference between the tested groups (p> 0.05). The autoclaving of Reciproc® R25 instruments did not interfere in their mechanical properties. |
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Vieira, Victor Talarico LealMoreira, Edson Jorge LimaSilva, Emmanuel João Nogueira Leal daNeves, Mônica Aparecida SchultzMendonça, Thais AccorsiPrata, Daniel de Brito2017-02-07T22:02:26Z2016-02-16Prata, Daniel de Brito. Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25. 2016. 36 f. Dissertação( Programa de Pós-Graduação em Odontologia) - Universidade do Grande Rio, Duque de Caxias .http://localhost:8080/tede/handle/tede/118The aim of this study was to evaluate the influence of sterilization on the mechanical properties of Reciproc® R25 instrument (VDW, Munich, Germany). Bending tests were performed in 45° cantilever, rotating bending, stereomicroscopy and scanning electron microscopy. The stereomicroscopy assessed the tip angle, helix angle, taper and tip diameter of the instruments. The scanning electron microscopy evaluated the surface fracture after rotating bending test to check for possible differences between the groups. The bending test at 45° determined bending force to the original and autoclaved instruments, and rotating bending test time fatigue life. 4 groups were analyzed. Group 1 was composed of the instruments as received, the other groups were composed of sterile instruments 2, 4 and 6 times, each with 10 instruments, totaling a n of 40 instruments Reciproc® R25. The statistical test performed to compare the flexibility and time to fracture was the ANOVA with significance level of 5%. As for the characterization, instruments met the recommendation of ANSI / ADA 101. The scanning electron microscopy showed no difference in the finish and the fracture surface of the instruments as received and autoclaved. The data obtained in the flexural tests on 45 and rotating bending showed no statistically significant difference between the tested groups (p> 0.05). The autoclaving of Reciproc® R25 instruments did not interfere in their mechanical properties.O objetivo deste estudo foi avaliar a influência da esterilização nas propriedades mecânicas do instrumento Reciproc® R25 (VDW, Munique, Alemanha). Foram realizados ensaios de flexão em cantilever 45°, flexão rotativa, estereomicroscopia e microscopia eletrônica de varredura. A estereomicroscopia avaliou o ângulo da ponta, ângulo da hélice, conicidade e diâmetro da ponta dos instrumentos. A microscopia eletrônica de varredura avaliou a superfície de fratura após o ensaio de flexão rotativa dos instrumentos para verificar possíveis diferenças entre os grupos estudados. O teste de flexão em 45º determinou a força para flexão nos instrumentos originais e autoclavados, e o ensaio de flexão rotativa o tempo de vida em fadiga. Foram analisados 4 grupos. O grupo 1 foi composto pelos instrumentos como recebido, os demais grupos foram compostos por instrumentos esterilizados 2, 4 e 6 vezes, cada um com 10 instrumentos, totalizando um n de 40 instrumentos Reciproc® R25. O teste estatístico realizado para comparação da flexibilidade e do tempo para a fratura foi o ANOVA com nível de significância em 5%. Quanto à caracterização, os instrumentos atenderam a recomendação da norma ANSI/ADA nº101. A microscopia eletrônica de varredura não demonstrou diferenças no acabamento e na superfície de fratura dos instrumentos como recebidos e autoclavados. Os dados obtidos nos ensaios de flexão em 45º e flexão rotativa não apresentaram diferença estatisticamente significante entre os grupos testados (p>0,05). A autoclavagem dos instrumentos Reciproc® R25 não interferiu em suas propriedades mecânicas.Submitted by Patricia Vieira Silva (patricia.silva@unigranrio.com.br) on 2017-02-07T22:02:26Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao-Daniel modelo artigo 17-05-2016.pdf: 2700262 bytes, checksum: daa90bae5f4c84d4849d3570c8698e61 (MD5)Made available in DSpace on 2017-02-07T22:02:26Z (GMT). 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dc.title.por.fl_str_mv |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 |
title |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 |
spellingShingle |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 Prata, Daniel de Brito Odontologia Odontologia |
title_short |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 |
title_full |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 |
title_fullStr |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 |
title_full_unstemmed |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 |
title_sort |
Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25 |
author |
Prata, Daniel de Brito |
author_facet |
Prata, Daniel de Brito |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Vieira, Victor Talarico Leal |
dc.contributor.advisor-co1.fl_str_mv |
Moreira, Edson Jorge Lima |
dc.contributor.referee1.fl_str_mv |
Silva, Emmanuel João Nogueira Leal da |
dc.contributor.referee2.fl_str_mv |
Neves, Mônica Aparecida Schultz |
dc.contributor.referee3.fl_str_mv |
Mendonça, Thais Accorsi |
dc.contributor.author.fl_str_mv |
Prata, Daniel de Brito |
contributor_str_mv |
Vieira, Victor Talarico Leal Moreira, Edson Jorge Lima Silva, Emmanuel João Nogueira Leal da Neves, Mônica Aparecida Schultz Mendonça, Thais Accorsi |
dc.subject.por.fl_str_mv |
Odontologia |
topic |
Odontologia Odontologia |
dc.subject.cnpq.fl_str_mv |
Odontologia |
description |
The aim of this study was to evaluate the influence of sterilization on the mechanical properties of Reciproc® R25 instrument (VDW, Munich, Germany). Bending tests were performed in 45° cantilever, rotating bending, stereomicroscopy and scanning electron microscopy. The stereomicroscopy assessed the tip angle, helix angle, taper and tip diameter of the instruments. The scanning electron microscopy evaluated the surface fracture after rotating bending test to check for possible differences between the groups. The bending test at 45° determined bending force to the original and autoclaved instruments, and rotating bending test time fatigue life. 4 groups were analyzed. Group 1 was composed of the instruments as received, the other groups were composed of sterile instruments 2, 4 and 6 times, each with 10 instruments, totaling a n of 40 instruments Reciproc® R25. The statistical test performed to compare the flexibility and time to fracture was the ANOVA with significance level of 5%. As for the characterization, instruments met the recommendation of ANSI / ADA 101. The scanning electron microscopy showed no difference in the finish and the fracture surface of the instruments as received and autoclaved. The data obtained in the flexural tests on 45 and rotating bending showed no statistically significant difference between the tested groups (p> 0.05). The autoclaving of Reciproc® R25 instruments did not interfere in their mechanical properties. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-02-16 |
dc.date.accessioned.fl_str_mv |
2017-02-07T22:02:26Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Prata, Daniel de Brito. Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25. 2016. 36 f. Dissertação( Programa de Pós-Graduação em Odontologia) - Universidade do Grande Rio, Duque de Caxias . |
dc.identifier.uri.fl_str_mv |
http://localhost:8080/tede/handle/tede/118 |
identifier_str_mv |
Prata, Daniel de Brito. Influência de esterilização nas propriedades mecânicas do instrumento Reciproc R25. 2016. 36 f. Dissertação( Programa de Pós-Graduação em Odontologia) - Universidade do Grande Rio, Duque de Caxias . |
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dc.language.iso.fl_str_mv |
por |
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openAccess |
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Universidade do Grande Rio |
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Programa de Pós-Graduação em Odontologia |
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UNIGRANRIO |
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Brasil |
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Universidade do Grande Rio |
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