Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Archives of Biology and Technology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100606 |
Resumo: | Abstract The aim of this study was to assess the performance and surface alteration of two single-file systems according to the number of uses. Ten WaveOne Primary files (25/.08) and ten One Shape NG files (25/.06) were used for instrumentation of mesial root canals of mandibular molars. Each instrument was cleaned and sterilized after the preparation of two root canals and then reused. The time spent for instrumentation of each root canal was recorded and analyzed by using t-test. Microphotographs of the surface of the instruments were taken with a scanning electron microscope at different magnifications (i.e. 18x, 160x, 500x and 1000x) and at a distance of 4 mm from the instrument’s tip before being analyzed by four observers. Presence of disruption of cutting edge, crack, craters and unwinding was assessed and submitted to Fisher’s exact test. Both systems showed manufacturing defects and cracks. The presence of disruption of cutting edges was major in WaveOne files from the sixth use, whereas One Shape NG files showed more unwinding. Only preparation time using WaveOne files was influenced by the number of uses. One can conclude that WaveOne files had more disruption of cutting edges and took longer time for root canal preparation from the sixth use onwards, whereas the One Shape NG files showed more unwinding at the tenth use. |
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Brazilian Archives of Biology and Technology |
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Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Usessingle-filereuseroot canal instrumentationAbstract The aim of this study was to assess the performance and surface alteration of two single-file systems according to the number of uses. Ten WaveOne Primary files (25/.08) and ten One Shape NG files (25/.06) were used for instrumentation of mesial root canals of mandibular molars. Each instrument was cleaned and sterilized after the preparation of two root canals and then reused. The time spent for instrumentation of each root canal was recorded and analyzed by using t-test. Microphotographs of the surface of the instruments were taken with a scanning electron microscope at different magnifications (i.e. 18x, 160x, 500x and 1000x) and at a distance of 4 mm from the instrument’s tip before being analyzed by four observers. Presence of disruption of cutting edge, crack, craters and unwinding was assessed and submitted to Fisher’s exact test. Both systems showed manufacturing defects and cracks. The presence of disruption of cutting edges was major in WaveOne files from the sixth use, whereas One Shape NG files showed more unwinding. Only preparation time using WaveOne files was influenced by the number of uses. One can conclude that WaveOne files had more disruption of cutting edges and took longer time for root canal preparation from the sixth use onwards, whereas the One Shape NG files showed more unwinding at the tenth use.Instituto de Tecnologia do Paraná - Tecpar2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100606Brazilian Archives of Biology and Technology v.63 2020reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/1678-4324-2020180500info:eu-repo/semantics/openAccessPorto-Pires,Márcia Virginia M.Nabeshima,Cleber KeitiCaballero-Flores,HectorMachado,Manoel Eduardo de Limaeng2020-08-27T00:00:00Zoai:scielo:S1516-89132020000100606Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2020-08-27T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false |
dc.title.none.fl_str_mv |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses |
title |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses |
spellingShingle |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses Porto-Pires,Márcia Virginia M. single-file reuse root canal instrumentation |
title_short |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses |
title_full |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses |
title_fullStr |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses |
title_full_unstemmed |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses |
title_sort |
Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses |
author |
Porto-Pires,Márcia Virginia M. |
author_facet |
Porto-Pires,Márcia Virginia M. Nabeshima,Cleber Keiti Caballero-Flores,Hector Machado,Manoel Eduardo de Lima |
author_role |
author |
author2 |
Nabeshima,Cleber Keiti Caballero-Flores,Hector Machado,Manoel Eduardo de Lima |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Porto-Pires,Márcia Virginia M. Nabeshima,Cleber Keiti Caballero-Flores,Hector Machado,Manoel Eduardo de Lima |
dc.subject.por.fl_str_mv |
single-file reuse root canal instrumentation |
topic |
single-file reuse root canal instrumentation |
description |
Abstract The aim of this study was to assess the performance and surface alteration of two single-file systems according to the number of uses. Ten WaveOne Primary files (25/.08) and ten One Shape NG files (25/.06) were used for instrumentation of mesial root canals of mandibular molars. Each instrument was cleaned and sterilized after the preparation of two root canals and then reused. The time spent for instrumentation of each root canal was recorded and analyzed by using t-test. Microphotographs of the surface of the instruments were taken with a scanning electron microscope at different magnifications (i.e. 18x, 160x, 500x and 1000x) and at a distance of 4 mm from the instrument’s tip before being analyzed by four observers. Presence of disruption of cutting edge, crack, craters and unwinding was assessed and submitted to Fisher’s exact test. Both systems showed manufacturing defects and cracks. The presence of disruption of cutting edges was major in WaveOne files from the sixth use, whereas One Shape NG files showed more unwinding. Only preparation time using WaveOne files was influenced by the number of uses. One can conclude that WaveOne files had more disruption of cutting edges and took longer time for root canal preparation from the sixth use onwards, whereas the One Shape NG files showed more unwinding at the tenth use. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100606 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100606 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-4324-2020180500 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto de Tecnologia do Paraná - Tecpar |
publisher.none.fl_str_mv |
Instituto de Tecnologia do Paraná - Tecpar |
dc.source.none.fl_str_mv |
Brazilian Archives of Biology and Technology v.63 2020 reponame:Brazilian Archives of Biology and Technology instname:Instituto de Tecnologia do Paraná (Tecpar) instacron:TECPAR |
instname_str |
Instituto de Tecnologia do Paraná (Tecpar) |
instacron_str |
TECPAR |
institution |
TECPAR |
reponame_str |
Brazilian Archives of Biology and Technology |
collection |
Brazilian Archives of Biology and Technology |
repository.name.fl_str_mv |
Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar) |
repository.mail.fl_str_mv |
babt@tecpar.br||babt@tecpar.br |
_version_ |
1750318280083505152 |