Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilization
OBJECTIVE: This study aimed to assess the feasibility of reusing nickel–titanium (NiTi) alloy wires after 6 weeks of intraoral use by evaluating the changes in the load-deflection properties and surface characterization of these alloy wires after cold sterilization by immersion in 2% of acidic gluta...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2020-01-01
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| Series: | Journal of Orthodontic Science |
| Subjects: | |
| Online Access: | http://www.jorthodsci.org/article.asp?issn=2278-0203;year=2020;volume=9;issue=1;spage=10;epage=10;aulast=Yadav |
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| author | Ankit Yadav Poonam K Jayaprakash Rajeshwar Singh Meeta Dawer Palash Modi Bhumika Sehdev Kiran K Ganji |
| author_facet | Ankit Yadav Poonam K Jayaprakash Rajeshwar Singh Meeta Dawer Palash Modi Bhumika Sehdev Kiran K Ganji |
| author_sort | Ankit Yadav |
| collection | DOAJ |
| description | OBJECTIVE: This study aimed to assess the feasibility of reusing nickel–titanium (NiTi) alloy wires after 6 weeks of intraoral use by evaluating the changes in the load-deflection properties and surface characterization of these alloy wires after cold sterilization by immersion in 2% of acidic glutaraldehyde for 10 h.
MATERIAL AND METHODS: Twenty wires each in three groups of G1-as-received wires (ARW), G2-unsterilized used wires, and G3-sterilized used wires (SUW) were tested by the three-point bending test and scanning electron microscopy (SEM). The data were subjected to statistics, one-way analysis of variance, and Bonferroni posthoc test for comparison.
RESULTS: Recycling of NiTi wires produced statistically insignificant changes in both the loading and unloading properties of the wires. The forces needed to twist the used wires, that is, G2-(UUW) and G3-(SUW) were lower than G1-(ARW), suggesting lowering of the stiffness of the wires. Superelasticity is well-maintained by G2-(UUW) and G3-(SUW) although there is an insignificant lowering of the forces exerted by them during loading and unloading. SEM demonstrated no increase in the pitting of surfaces in both G2-(UUW) and G3-(SUW); multiple areas were seen to be more smoothened over G2-(UUW) and G3-(SUW) NiTi wires surfaces.
CONCLUSION: The findings of this study support the reuse of NiTi wires after 6 weeks of use in oral conditions followed by cold sterilization by immersion in 2% acidic glutaraldehyde for 10 h. |
| first_indexed | 2024-12-21T01:55:14Z |
| format | Article |
| id | doaj.art-c8eae86e15054b43a5dec89f2db5c114 |
| institution | Directory Open Access Journal |
| issn | 2278-0203 |
| language | English |
| last_indexed | 2024-12-21T01:55:14Z |
| publishDate | 2020-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Orthodontic Science |
| spelling | doaj.art-c8eae86e15054b43a5dec89f2db5c1142022-12-21T19:19:47ZengWolters Kluwer Medknow PublicationsJournal of Orthodontic Science2278-02032020-01-0191101010.4103/jos.JOS_45_19Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilizationAnkit YadavPoonam K JayaprakashRajeshwar SinghMeeta DawerPalash ModiBhumika SehdevKiran K GanjiOBJECTIVE: This study aimed to assess the feasibility of reusing nickel–titanium (NiTi) alloy wires after 6 weeks of intraoral use by evaluating the changes in the load-deflection properties and surface characterization of these alloy wires after cold sterilization by immersion in 2% of acidic glutaraldehyde for 10 h. MATERIAL AND METHODS: Twenty wires each in three groups of G1-as-received wires (ARW), G2-unsterilized used wires, and G3-sterilized used wires (SUW) were tested by the three-point bending test and scanning electron microscopy (SEM). The data were subjected to statistics, one-way analysis of variance, and Bonferroni posthoc test for comparison. RESULTS: Recycling of NiTi wires produced statistically insignificant changes in both the loading and unloading properties of the wires. The forces needed to twist the used wires, that is, G2-(UUW) and G3-(SUW) were lower than G1-(ARW), suggesting lowering of the stiffness of the wires. Superelasticity is well-maintained by G2-(UUW) and G3-(SUW) although there is an insignificant lowering of the forces exerted by them during loading and unloading. SEM demonstrated no increase in the pitting of surfaces in both G2-(UUW) and G3-(SUW); multiple areas were seen to be more smoothened over G2-(UUW) and G3-(SUW) NiTi wires surfaces. CONCLUSION: The findings of this study support the reuse of NiTi wires after 6 weeks of use in oral conditions followed by cold sterilization by immersion in 2% acidic glutaraldehyde for 10 h.http://www.jorthodsci.org/article.asp?issn=2278-0203;year=2020;volume=9;issue=1;spage=10;epage=10;aulast=Yadavbending testcold sterilizationnickel-titanium alloy wiresrecyclingsuperelasticitybending testcold sterilizationnickel-titanium alloy wiresrecyclingsuperelasticity |
| spellingShingle | Ankit Yadav Poonam K Jayaprakash Rajeshwar Singh Meeta Dawer Palash Modi Bhumika Sehdev Kiran K Ganji Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilization Journal of Orthodontic Science bending test cold sterilization nickel-titanium alloy wires recycling superelasticitybending test cold sterilization nickel-titanium alloy wires recycling superelasticity |
| title | Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilization |
| title_full | Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilization |
| title_fullStr | Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilization |
| title_full_unstemmed | Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilization |
| title_short | Impact of recycling on the mechanical properties of nickel-titanium alloy wires and the efficacy of their reuse after cold sterilization |
| title_sort | impact of recycling on the mechanical properties of nickel titanium alloy wires and the efficacy of their reuse after cold sterilization |
| topic | bending test cold sterilization nickel-titanium alloy wires recycling superelasticitybending test cold sterilization nickel-titanium alloy wires recycling superelasticity |
| url | http://www.jorthodsci.org/article.asp?issn=2278-0203;year=2020;volume=9;issue=1;spage=10;epage=10;aulast=Yadav |
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