The Difference of Corossion Resistance between NiTi Archwires and NiTi with Additional Cooper Archwires in Artificial Saliva
Eddy Heriyanto Habar,*, Fransiske Tatengkeng, Ike Damayanti Habar ,Prema Hapsari Hidayati
Orthodontics Department, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
Prosthodontics Department, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
Internal Medicine Department, Indonesian Moslem University, Indonesia
Abstract
Abstract Objective: The aim of this experiment showed the difference of corrosion resistance between Nickel-Titanium (NiTi) archwire and NiTi archwire with additional cooper (NiTi-Cu) in artificial saliva. Materials and methods: In these laboratory experiments, immersed the NiTi archwires and NiTi-Cu archwires on artificial saliva at pH= 7 and incubated on 37oC, with the ratio of the archwire and the saliva was 0.02 gr: 1 ml during 1 day, 33 days and 66 days. Results: Corrosion resistances reviewed by average saliva artificial contained ion Ni after immersed 1 day of NiTi archwires and NiTi-Cu were 0.033 ± 0.000, and after immersed 33 days were 0.053 ± 0.022 and 0.101 ± 0.050, and after 66 days immersed were 0.101 ± 0.050 and 8.052 ± 3.4667. Conclusions: NiTi archwire more resistant to corrosion than NiTi-Cu, ion Ni released shown higher concentration in NiTi-Cu than NiTi.
Keywords: Archwire; Nickel Titanium; Nickel Titanium with additional cooper; Corrosion resistance.
Topic: Information, technology, and women