The influence of distal-end heat treatment on deflection of nickel-titanium archwire
Objective: The aim of this in vitro study was to evaluate the deflection-force behavior of nickel-titanium (NiTi) orthodontic wires adjacent to the portion submitted to heat treatment. Material and Methods: A total of 106 segments of NiTi wires (0.019 x 0.025-in) and heat-activated NiTi wires (0.0...
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| Format: | Article |
| Language: | English |
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Dental Press Editora
2016-02-01
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| Series: | Dental Press Journal of Orthodontics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512016000100083&lng=en&tlng=en |
| _version_ | 1818474001848074240 |
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| author | Marcelo Faria da Silva Célia Regina Maia Pinzan-Vercelino Júlio de Araújo Gurgel |
| author_facet | Marcelo Faria da Silva Célia Regina Maia Pinzan-Vercelino Júlio de Araújo Gurgel |
| author_sort | Marcelo Faria da Silva |
| collection | DOAJ |
| description | Objective: The aim of this in vitro study was to evaluate the deflection-force behavior of nickel-titanium (NiTi) orthodontic wires adjacent to the portion submitted to heat treatment. Material and Methods: A total of 106 segments of NiTi wires (0.019 x 0.025-in) and heat-activated NiTi wires (0.016 x 0.022-in) from four commercial brands were tested. The segments were obtained from 80 archwires. For the experimental group, the distal portion of each segmented archwire was subjected to heat treatment (n = 40), while the other distal portion of the same archwire was used as a heating-free control group (n = 40). Deflection tests were performed in a temperature-controlled universal testing machine. Unpaired Student's t-tests were applied to determine if there were differences between the experimental and control groups for each commercial brand and size of wire. Statistical significance was set at p < 0.05. Results: There were no statistically significant differences between the tested groups with the same size and brand of wire. Conclusions: Heat treatment applied to the distal ends of rectangular NiTi archwires does not permanently change the elastic properties of the adjacent portions. |
| first_indexed | 2024-04-14T04:30:41Z |
| format | Article |
| id | doaj.art-7a427b49b5694c159d8751dd2ead46ee |
| institution | Directory Open Access Journal |
| issn | 2177-6709 |
| language | English |
| last_indexed | 2024-04-14T04:30:41Z |
| publishDate | 2016-02-01 |
| publisher | Dental Press Editora |
| record_format | Article |
| series | Dental Press Journal of Orthodontics |
| spelling | doaj.art-7a427b49b5694c159d8751dd2ead46ee2022-12-22T02:12:03ZengDental Press EditoraDental Press Journal of Orthodontics2177-67092016-02-01211838810.1590/2177-6709.21.1.083-088.oarS2176-94512016000100083The influence of distal-end heat treatment on deflection of nickel-titanium archwireMarcelo Faria da SilvaCélia Regina Maia Pinzan-VercelinoJúlio de Araújo GurgelObjective: The aim of this in vitro study was to evaluate the deflection-force behavior of nickel-titanium (NiTi) orthodontic wires adjacent to the portion submitted to heat treatment. Material and Methods: A total of 106 segments of NiTi wires (0.019 x 0.025-in) and heat-activated NiTi wires (0.016 x 0.022-in) from four commercial brands were tested. The segments were obtained from 80 archwires. For the experimental group, the distal portion of each segmented archwire was subjected to heat treatment (n = 40), while the other distal portion of the same archwire was used as a heating-free control group (n = 40). Deflection tests were performed in a temperature-controlled universal testing machine. Unpaired Student's t-tests were applied to determine if there were differences between the experimental and control groups for each commercial brand and size of wire. Statistical significance was set at p < 0.05. Results: There were no statistically significant differences between the tested groups with the same size and brand of wire. Conclusions: Heat treatment applied to the distal ends of rectangular NiTi archwires does not permanently change the elastic properties of the adjacent portions.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512016000100083&lng=en&tlng=enFios ortodônticosTratamento térmicoPropriedades mecânicas |
| spellingShingle | Marcelo Faria da Silva Célia Regina Maia Pinzan-Vercelino Júlio de Araújo Gurgel The influence of distal-end heat treatment on deflection of nickel-titanium archwire Dental Press Journal of Orthodontics Fios ortodônticos Tratamento térmico Propriedades mecânicas |
| title | The influence of distal-end heat treatment on deflection of nickel-titanium archwire |
| title_full | The influence of distal-end heat treatment on deflection of nickel-titanium archwire |
| title_fullStr | The influence of distal-end heat treatment on deflection of nickel-titanium archwire |
| title_full_unstemmed | The influence of distal-end heat treatment on deflection of nickel-titanium archwire |
| title_short | The influence of distal-end heat treatment on deflection of nickel-titanium archwire |
| title_sort | influence of distal end heat treatment on deflection of nickel titanium archwire |
| topic | Fios ortodônticos Tratamento térmico Propriedades mecânicas |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512016000100083&lng=en&tlng=en |
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