Influence of surface grooves orientation on the cyclic fatigue resistance of NiTi wire.
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| Title: | Influence of surface grooves orientation on the cyclic fatigue resistance of NiTi wire. |
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| Authors: | Pereira LOPES, Helio1, Nelson ELIAS, Carlos1, Martins FERREIRA, Ligia1, Chaves de SOUZA, Leticia2, Pereira LOPES, Weber Schmidt3, Nogueira Leal SILVA, Emmanuel João4, Leal VIEIRA, Victor Talarico4 victortalarico@yahoo.com.br |
| Source: | Dental Press Endodontics. Jan-Apr2021, Vol. 11 Issue 1, p40-45. 6p. |
| Subjects: | CYCLIC fatigue, NICKEL-titanium alloys, FATIGUE life, NULL hypothesis, FATIGUE testing machines |
| Abstract: | Objective: this study tested the null hypothesis that the surface grooves orientation does not influence the NiTi wire cyclic fatigue. Material and methods: Segments of NiTi wire (Moreli, Sorocaba, Brazil) measuring 30mm and with a 0.40mm of diameter were used. Grooves were created in the longitudinal direction, at 45 degrees and 90 degrees. The wire was analyzed with SEM and the roughness was quantified by interferometry. The number of cycles until fracture (NCF) was determined by the cyclic fatigue test. Results: the roughness between 45 and 90 degrees groups presented differences (p<0.05). The group without grooves presented the highest NCF (p<0.05). The group with 45 degrees grooves presented better NCF in comparison to the group with 90 degrees (p<0.05). Conclusions: the direction of the grooves influences the fatigue life. The NCF increases with the reduction of the angle of the grooves in relation to the long axis, regardless of the depth of the grooves. [ABSTRACT FROM AUTHOR] |
| Copyright of Dental Press Endodontics is the property of Dental Press International and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | MedicLatina |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: lth DbLabel: MedicLatina An: 153141267 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Influence of surface grooves orientation on the cyclic fatigue resistance of NiTi wire. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pereira+LOPES%2C+Helio%22">Pereira LOPES, Helio</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nelson+ELIAS%2C+Carlos%22">Nelson ELIAS, Carlos</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Martins+FERREIRA%2C+Ligia%22">Martins FERREIRA, Ligia</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chaves+de+SOUZA%2C+Leticia%22">Chaves de SOUZA, Leticia</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Pereira+LOPES%2C+Weber+Schmidt%22">Pereira LOPES, Weber Schmidt</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Nogueira+Leal+SILVA%2C+Emmanuel+João%22">Nogueira Leal SILVA, Emmanuel João</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Leal+VIEIRA%2C+Victor+Talarico%22">Leal VIEIRA, Victor Talarico</searchLink><relatesTo>4</relatesTo><i> victortalarico@yahoo.com.br</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Dental+Press+Endodontics%22">Dental Press Endodontics</searchLink>. Jan-Apr2021, Vol. 11 Issue 1, p40-45. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22CYCLIC+fatigue%22">CYCLIC fatigue</searchLink><br /><searchLink fieldCode="DE" term="%22NICKEL-titanium+alloys%22">NICKEL-titanium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22FATIGUE+life%22">FATIGUE life</searchLink><br /><searchLink fieldCode="DE" term="%22NULL+hypothesis%22">NULL hypothesis</searchLink><br /><searchLink fieldCode="DE" term="%22FATIGUE+testing+machines%22">FATIGUE testing machines</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Objective: this study tested the null hypothesis that the surface grooves orientation does not influence the NiTi wire cyclic fatigue. Material and methods: Segments of NiTi wire (Moreli, Sorocaba, Brazil) measuring 30mm and with a 0.40mm of diameter were used. Grooves were created in the longitudinal direction, at 45 degrees and 90 degrees. The wire was analyzed with SEM and the roughness was quantified by interferometry. The number of cycles until fracture (NCF) was determined by the cyclic fatigue test. Results: the roughness between 45 and 90 degrees groups presented differences (p<0.05). The group without grooves presented the highest NCF (p<0.05). The group with 45 degrees grooves presented better NCF in comparison to the group with 90 degrees (p<0.05). Conclusions: the direction of the grooves influences the fatigue life. The NCF increases with the reduction of the angle of the grooves in relation to the long axis, regardless of the depth of the grooves. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Dental Press Endodontics is the property of Dental Press International and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.14436/2358-2545.11.1.040-045.oar Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 40 Subjects: – SubjectFull: CYCLIC fatigue Type: general – SubjectFull: NICKEL-titanium alloys Type: general – SubjectFull: FATIGUE life Type: general – SubjectFull: NULL hypothesis Type: general – SubjectFull: FATIGUE testing machines Type: general Titles: – TitleFull: Influence of surface grooves orientation on the cyclic fatigue resistance of NiTi wire. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pereira LOPES, Helio – PersonEntity: Name: NameFull: Nelson ELIAS, Carlos – PersonEntity: Name: NameFull: Martins FERREIRA, Ligia – PersonEntity: Name: NameFull: Chaves de SOUZA, Leticia – PersonEntity: Name: NameFull: Pereira LOPES, Weber Schmidt – PersonEntity: Name: NameFull: Nogueira Leal SILVA, Emmanuel João – PersonEntity: Name: NameFull: Leal VIEIRA, Victor Talarico IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan-Apr2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 21783713 Numbering: – Type: volume Value: 11 – Type: issue Value: 1 Titles: – TitleFull: Dental Press Endodontics Type: main |
| ResultId | 1 |
