Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating Brackets
Aim. The purpose of this study was to evaluate the load and unload deflection and permanent deformation of round 0.016′′ and rectangular 0.016′′×0.022′′ regular and coated Ni-Ti wires. Materials and Methods. Ni-Ti archwires produced by two manufacturers were evaluated. Both regular and coated round...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2017/8085067 |
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| author | Hazel Garro-Piña María Cristina Jiménez-Cervantes Ricardo Ondarza-Rovira Roberto Justus Salvador García-López |
| author_facet | Hazel Garro-Piña María Cristina Jiménez-Cervantes Ricardo Ondarza-Rovira Roberto Justus Salvador García-López |
| author_sort | Hazel Garro-Piña |
| collection | DOAJ |
| description | Aim. The purpose of this study was to evaluate the load and unload deflection and permanent deformation of round 0.016′′ and rectangular 0.016′′×0.022′′ regular and coated Ni-Ti wires. Materials and Methods. Ni-Ti archwires produced by two manufacturers were evaluated. Both regular and coated round and rectangular Ni-Ti wire segments (n=15) from each group were submitted to a three-point bending test. Both types of wires were evaluated for permanent deformation at the end of a recovery cycle. Results. The coated round 0.016′′ Ni-Ti wires produced a significantly lower force in loading (p<0.01) and unloading (p<0.01) than regular wires of the same manufacturer and size. There was no significant difference in permanent deformation between coated and regular round Ni-Ti wires from the same company. For rectangular 0.016×0.022′′ Ni-Ti wires, there was a significant difference in the loading evaluation, but the unloading test presented no significant differences. The permanent deformation of the rectangular wires revealed no significant difference between them. Conclusion. The addition of an esthetic coating to these new Ni-Ti wires produced changes in their mechanical properties, manifested as a reduction in the applied force, which should be considered in clinical management. |
| format | Article |
| id | doaj-art-c56e105511884b3fab8e93dcfba32734 |
| institution | Kabale University |
| issn | 1687-8728 1687-8736 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-c56e105511884b3fab8e93dcfba327342025-02-03T01:02:11ZengWileyInternational Journal of Dentistry1687-87281687-87362017-01-01201710.1155/2017/80850678085067Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating BracketsHazel Garro-Piña0María Cristina Jiménez-Cervantes1Ricardo Ondarza-Rovira2Roberto Justus3Salvador García-López4Private Practice, San José, Costa RicaDepartment of Orthodontics, Universidad Intercontinental, Mexico City, MexicoInstituto Nacional de Investigaciones Nucleares and Universidad Intercontinental, Mexico City, MexicoUniversidad Intercontinental, Mexico City, MexicoUniversidad Intercontinental e Universidad Autónoma Metropolitana, Mexico City, MexicoAim. The purpose of this study was to evaluate the load and unload deflection and permanent deformation of round 0.016′′ and rectangular 0.016′′×0.022′′ regular and coated Ni-Ti wires. Materials and Methods. Ni-Ti archwires produced by two manufacturers were evaluated. Both regular and coated round and rectangular Ni-Ti wire segments (n=15) from each group were submitted to a three-point bending test. Both types of wires were evaluated for permanent deformation at the end of a recovery cycle. Results. The coated round 0.016′′ Ni-Ti wires produced a significantly lower force in loading (p<0.01) and unloading (p<0.01) than regular wires of the same manufacturer and size. There was no significant difference in permanent deformation between coated and regular round Ni-Ti wires from the same company. For rectangular 0.016×0.022′′ Ni-Ti wires, there was a significant difference in the loading evaluation, but the unloading test presented no significant differences. The permanent deformation of the rectangular wires revealed no significant difference between them. Conclusion. The addition of an esthetic coating to these new Ni-Ti wires produced changes in their mechanical properties, manifested as a reduction in the applied force, which should be considered in clinical management.http://dx.doi.org/10.1155/2017/8085067 |
| spellingShingle | Hazel Garro-Piña María Cristina Jiménez-Cervantes Ricardo Ondarza-Rovira Roberto Justus Salvador García-López Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating Brackets International Journal of Dentistry |
| title | Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating Brackets |
| title_full | Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating Brackets |
| title_fullStr | Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating Brackets |
| title_full_unstemmed | Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating Brackets |
| title_short | Evaluation of the Loading, Unloading, and Permanent Deformation of Newly Available Epoxy Resin Coated Ni-Ti Wires Using Self-Ligating Brackets |
| title_sort | evaluation of the loading unloading and permanent deformation of newly available epoxy resin coated ni ti wires using self ligating brackets |
| url | http://dx.doi.org/10.1155/2017/8085067 |
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