Eramo S, Fraschini M, Lomurno G, Polimeni A
Cattedra di Clinica Odontoiatrica, Università degli Studi, Perugia.
Minerva Stomatol. 1998 Jul-Aug;47(7-8):299-302.
Dissolution process in oral liquids by the presence of glass-ionomer systems (due to surface corrosion, to diffusion through solutions and through mass) make an ionic release (particularly F, Al, Pb, As) which is a non secondary problem, due to the usual utilization of these materials in pedodontic and restorative dentistry.
In this work, considering the high toxicity of low quantity of Arsenic ion, a comparative research has been made in order to determine, by using high level liquid Cromatography (HPCL), the quantity in ppm of As hydro- and acid soluble given by five ionomeric products, in water and in nitric acid concentrated solution.
The results show that in some products arsenical concentrations are higher then the quantity accepted by ISO-FDI; therefore, a better control in the production of these products is needed as well as a limited use in dentistry. It is suggested to use glass-ionomer systems in patients with dental dike and varnish on the surfaces that are in contact with oral liquids action.
口腔液体中的溶解过程因玻璃离子体系的存在（由于表面腐蚀、通过溶液和物质的扩散）导致离子释放（特别是氟、铝、铅、砷），鉴于这些材料在儿童牙科和修复牙科中的常用性，这并非次要问题。
在这项研究中，考虑到少量砷离子的高毒性，进行了一项对比研究，以便通过高效液相色谱法（HPLC）测定五种离子型产品在水和浓硝酸溶液中氢溶性和酸溶性砷的含量（以ppm计）。
结果表明，某些产品中的砷浓度高于国际标准化组织-国际牙科联合会认可的量；因此，需要更好地控制这些产品的生产，并在牙科中限制使用。建议在有牙堤以及与口腔液体接触表面有清漆的患者中使用玻璃离子体系。
