2010
DOI: 10.4012/dmj.2009-069
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Corrosion behavior of ion implanted nickel-titanium orthodontic wire in fluoride mouth rinse solutions

Abstract: This study investigated the corrosion properties of ion implanted nickel-titanium wire (Neo Sentalloy Ionguard) in artificial saliva and fluoride mouth rinse solutions (Butler F Mouthrinse, Ora-Bliss). Non ion implanted nickel-titanium wire (Neo Sentalloy) was used as control. The anodic corrosion behavior was examined by potentiodynamic polarization measurement. The surfaces of the specimens were examined with SEM. The elemental depth profiles were characterized by XPS. Neo Sentalloy Ionguard in artificial sa… Show more

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Cited by 31 publications
(31 citation statements)
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“…28 In this study, we did not use adhesive resin to coverage base of brackets so the involved bracket surface was larger than clinical conditions. 29,30 Average nickel intake a day from foods are 5-100 mg and 300-500 mg, respectively. Nickel ion intake in beverages is commonly under 20 mg per liter.…”
Section: Discussionmentioning
confidence: 99%
“…28 In this study, we did not use adhesive resin to coverage base of brackets so the involved bracket surface was larger than clinical conditions. 29,30 Average nickel intake a day from foods are 5-100 mg and 300-500 mg, respectively. Nickel ion intake in beverages is commonly under 20 mg per liter.…”
Section: Discussionmentioning
confidence: 99%
“…Various modifications of the surface of NiTi archwires are being introduced in attempt to keep wires' excellent working properties while improving their aesthetic appearance and reducing susceptibility to corrosion 1,2) . Nitrogen ion implantation leads to surface composition changes from NiTi to TiN (titanium nitride), replacing known allergen nickel with inert nitrogen.…”
Section: Introductionmentioning
confidence: 99%
“…Os enxaguatórios bucais, cremes dentais, géis profiláticos contêm flúor em sua composição e os íons flúor presentes nestes produtos alteram a resistência à corrosão do titânio e suas ligas. Como os íons flúor são muito agressivos ao filme protetor TiO 2 , formado no titânio e em ligas de titânio, estes produtos devem ser evitados porque criam um meio ácido que levam a degradação da camada de óxido do titânio (CANAY et al, 1998;CHATURVEDI, 2009;IIJIMA et al, 2010;MABILLEAU et al, 2006;MATONO et al 2006;NAKAGAWA et al 1999;RECLARU e MEYER, 1997;STÁJER, et al, 2008;ZHANG, ZHENG, LIU, 2009).…”
Section: Discussionunclassified
“…A corrosão do titânio em meios fluoretados acorre pela conversão dos íons flúor (F -) em ácido fluorídrico (HF) e depende do pH da solução, quanto menor o pH, mais íons flúor são convertidos em ácido fluorídrico e conseqüentemente ocorre redução da resistência à corrosão (HUANG, 2002(HUANG, , 2003IIJIMA et al, 2010;MATONO et al, 2009;NOGUCHI et al, 2008;STÁJER, 2008;TAKEMOTO et al 2009). Quando o ácido fluorídrico agride o titânio, o filme de óxido passivo TiO 2 é destruído, passando a formar Na 2 TiF 6 que é menos estável e não protege o titânio e suas ligas da corrosão (HUANG, 2002(HUANG, , 2003STÁJER, 2008).…”
Section: Discussionunclassified
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