电感耦合等离子体光学发射光谱仪(ICP-OES)测定人工唾液中正畸弓线金属离子释放量

IF 1.3 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Main Group Chemistry Pub Date : 2022-11-22 DOI:10.3233/mgc-220013
Christos Ganidis, A. Nikolaidis, C. Gogos, E. Koulaouzidou
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引用次数: 0

摘要

在过去的几十年里,由于动态的主导条件,人们提出了许多关于潜在有毒金属从正畸矫治器迁移到口腔环境的问题。本研究旨在探讨口腔环境酸度和老化时间对正畸弓线离子释放的影响。为此,在37±1℃下,将三种不同合金组成的牙弓丝浸泡在不同pH值的人工唾液中7天和30天。采用电感耦合等离子体光学发射光谱仪(ICP-OES)对提取液进行分析。发现释放的离子种类和测量的浓度与厂家的数据不一致。通过降低唾液pH,渗滤液主要富集Cr和Ni离子,pH = 3.5老化30 d后,大部分拱丝释放的Ni、Mn和Cr离子最多。与材料类型或老化条件无关,Ni和Cr离子的总释放量在考虑的平均膳食摄入量范围内。
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Determination of metal ions release from orthodontic archwires in artificial saliva using inductively coupled plasma-optical emission spectrometer (ICP-OES)
Over the last decades many concerns have been raised regarding the migration of potentially toxic metals from the orthodontic appliances to the oral environment due to the dynamic dominant conditions. The current study aimed to investigate the effect of the oral environment acidity and aging time on the ion release from orthodontic archwires. For this purpose, dental archwires consisted of three different alloys were immersed in artificial saliva of varied pH values for 7 and 30 days at 37±1°C. The liquid extracts were then analyzed with inductively coupled plasma-optical emission spectrometer (ICP-OES). It was found that the released ion species and the measured concentrations were not in accordance with manufacturers’ data. Furthermore, the leachates were mainly enriched with Cr and Ni ions by decreasing the saliva pH, while most of the archwires released the highest amounts of Ni, Mn and Cr ions after 30 days aging at pH = 3.5. Independent of the material type or the aging conditions, the total release of Ni and Cr ions was within the considered average dietary intake levels.
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来源期刊
Main Group Chemistry
Main Group Chemistry 化学-化学综合
CiteScore
2.00
自引率
26.70%
发文量
65
审稿时长
>12 weeks
期刊介绍: Main Group Chemistry is intended to be a primary resource for all chemistry, engineering, biological, and materials researchers in both academia and in industry with an interest in the elements from the groups 1, 2, 12–18, lanthanides and actinides. The journal is committed to maintaining a high standard for its publications. This will be ensured by a rigorous peer-review process with most articles being reviewed by at least one editorial board member. Additionally, all manuscripts will be proofread and corrected by a dedicated copy editor located at the University of Kentucky.
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