Release of metal ions from orthodontic appliances: an in vitro study.
Release of metal ions from orthodontic appliances: an in vitro study.
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DOI：
10.1007/s12011-011-9233-4
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发表时间：
2012-05
影响因子：
3.9
通讯作者：
Downarowicz, Patrycja
中科院分区：
文献类型：
--
作者：
Mikulewicz, Marcin;Chojnacka, Katarzyna;Wozniak, Barbara;Downarowicz, Patrycja
在本文中，我们报告了由含铁、铬、镍、硅和钼的合金组成的正畸矫正器中金属离子释放到人工唾液中的体外实验结果。镁、铝、硅、磷、硫、钾、钙、钛、钒、锰、铁、钴、铜、锌、镍和铬的浓度在人工唾液中显著更高，在人工唾液中孵育用于正畸的金属支架、带和线。关于饮用水中金属离子的最大可接受浓度和推荐的每日剂量，两个值得关注的元素是镍（573对15 μg/l）和铬（101对8 μg/l）。定义了三种离子释放系数：α，无量纲倍增因子; β，浓度差异（单位：微克/升）; γ，离子释放系数（单位：百分比）。唾液中金属含量的升高被认为是由于合金或焊接材料中化学元素的腐蚀而发生的。某些组溶解元素的浓度似乎是相互关联的。
In this paper, we report the results of an in vitro experiment on the release of metal ions from orthodontic appliances composed of alloys containing iron, chromium, nickel, silicon, and molybdenum into artificial saliva. The concentrations of magnesium, aluminum, silicon, phosphorus, sulfur, potassium, calcium, titanium, vanadium, manganese, iron, cobalt, copper, zinc, nickel, and chromium were significantly higher in artificial saliva in which metal brackets, bands, and wires used in orthodontics were incubated. In relation to the maximum acceptable concentrations of metal ions in drinking water and to recommended daily doses, two elements of concern were nickel (573 vs. 15 μg/l in the controls) and chromium (101 vs. 8 μg/l in the controls). Three ion release coefficients were defined: α, a dimensionless multiplication factor; β, the difference in concentrations (in micrograms per liter); and γ, the ion release coefficient (in percent). The elevated levels of metals in saliva are thought to occur by corrosion of the chemical elements in the alloys or welding materials. The concentrations of some groups of dissolved elements appear to be interrelated.
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DOI：
10.1067/mod.2001.117911
发表时间：
2001-10-01
影响因子：
3
作者：
Hwang, CJ;Shin, JS;Cha, JY
通讯作者：
Cha, JY
DOI：
10.1016/s0889-5406(96)70175-0
发表时间：
1996-02-01
影响因子：
3
作者：
Kerosuo, H;Kullaa, A;HenstenPettersen, A
通讯作者：
HenstenPettersen, A
影响因子：
3.9
作者：
Hol, PJ;Vamnes, JS;Isrenn, R
通讯作者：
Isrenn, R
DOI：
10.1016/0889-5406(93)70009-d
发表时间：
1993-03-01
影响因子：
3
作者：
BASS, JK;FINE, H;CISNEROS, GJ
通讯作者：
CISNEROS, GJ
影响因子：
5.5
作者：
BASKETTER, DA;BRIATICOVANGOSA, G;BONTINCK, WJ
通讯作者：
BONTINCK, WJ