Nickel and chromium ion release from stainless steel bracket on immersion various types of mouthwashes

1st Physics and Technologies in Medicine and Dentistry Symposium

物理学;医药卫生

Mihardjanti, M.^1 ; Ismah, N.^1 ; Purwanegara, M.K.^1

Department of Orthodontics, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia^1

关键词: Allergic reactions;    Chromium ions;    Daily intake;    Inductively coupled plasma mass spectrometer;    Mann-Whitney;    Nickel ions;    One-factor;    World Health Organization;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/884/1/012107/pdf
DOI  :  10.1088/1742-6596/884/1/012107

学科分类：卫生学

来源: IOP

【 摘 要 】

The stainless steel bracket is widely used in orthodontics because of its mechanical properties, strength, and good biocompatibility. However, under certain conditions, it can be susceptible to corrosion. Studies have reported that the release of nickel and chromium ions because of corrosion can cause allergic reactions in some individuals and are mutagenic. The condition of the oral environment can lead to corrosion, and one factor that can alter the oral environment is mouthwash. The aim of this study was to measure the nickel and chromium ions released from stainless steel brackets when immersed in mouthwash and aquadest. The objects consisted of four groups of 17 maxillary premolar brackets with .022 slots. Each group was immersed in a different mouthwash and aquadest and incubated at 37 °C for 30 days. After 30 days of immersion, the released ions were measured using the ICP-MS (Inductively Coupled Plasma-Mass Spectrometer). For statistical analysis, both the Kruskal-Wallis and Mann-Whitney tests were used. The results showed differences among the four groups in the nickel ions released (p