Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
Vol 6 No 10 (2022): Volume 6, Issue 10, October 2022 | Pages: 19-28
International Research Journal of Innovations in Engineering and Technology
OPEN ACCESS | Research Article | Published Date: 14-10-2022
Currently, more and more people in Indonesia and even the world are experiencing malocclusion, both women and men. According to WHO in 2003, the results of a survey through the Dental Aesthetic Index (DAI) showed the incidence of malocclusion was 66.67% [1]. Orthodontic wire (arch wire) is an active component of fixed orthodontic appliances that are used to move teeth. Stainless steel orthodontic wire is the wire that is most often used today in orthodontic treatment. Stainless steel orthodontic wire is more widely used because of its super elastic properties[2]. One type of stainless steel used for orthodontic wire is type 316L. In the oral cavity 316L stainless steel wire is always in direct contact with saliva and can cause corrosion, therefore the test was carried out using the weight loss method and the linear polarization method.
The difference in surface roughness in 316L stainless steel affects the corrosion rate of the specimen. Surface roughness with a roughness value of 0.172µm produces a corrosion rate of 0.1629 mm/y, while a surface with a roughness value of 0.042µm produces a corrosion rate of 0.0815mm/y in artificial saliva immersion for 8 weeks using the weight loss method. For the linear polarization method, the corrosion rate value of 0.00067mm/y was found at the surface roughness with a value of 0.024µm, while for the surface roughness with a value of 0.176µm, the corrosion rate value was 0.16356mm/y. This indicates that the rougher the specimen surface, the higher the corrosion rate value obtained.
The use of 316L stainless steel material can be used for orthodontic wire as long as it has a surface roughness value not exceeding 0.051µm.
Corrosion, Stainless Steel 316L, Weight Loss Method, Linear Polarization Method
Gunawan Dwi Haryadi, Dwi Basuki Wibowo, Agus Suprihanto, Joshua Misael, “Testing of Corrosion Rate in Orthodontic Devices with Stainless Steel Material 316L on the Application of Saliva Solution and Surface Roughness” Published in International Research Journal of Innovations in Engineering and Technology - IRJIET, Volume 6, Issue 10, pp 19-28, October 2022. Article DOI https://doi.org/10.47001/IRJIET/2022.610004
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