Haikel Y, Gasser P, Salek P, Voegel J C
INSERM U157, Université Louis Pasteur, Faculté de Chirurgie Dentaire, Strasbourg, France.
J Biomed Mater Res. 1990 Nov;24(11):1551-8. doi: 10.1002/jbm.820241110.
The level of mercury vapors in the oral cavity was determined by analyzing 242 samples of intra-oral air before and after removing, setting, and polishing dental amalgam. The analysis was effected using atomic absorption spectrometry in cold vapors with the detection limit of 6 micrograms/m3. A score of 1 to 3 was assigned to each restoration to adjust the differences of the amalgam sizes. The present study showed that the vapor was released during any procedure: removing, setting, and polishing amalgam. The mean levels were between 85 and 326 micrograms/m3. However, before the restorative procedures, no mercury vapors had been detected in the oral cavity. This investigation has also demonstrated a significant direct correlation between Hg vapor concentrations in intra-oral air and the sizes of amalgam restorations during each procedure: removing, setting, and polishing. The statistic analysis showed no significant difference of mercury vapors in the oral cavity between the use or nonuse of water coolant during the amalgam polishing.
通过分析242份去除、放置和打磨牙科汞合金前后的口腔内空气样本，测定口腔内汞蒸气的水平。采用冷蒸气原子吸收光谱法进行分析，检测限为6微克/立方米。为每个修复体赋予1至3分，以调整汞合金尺寸的差异。本研究表明，在任何操作过程中都会释放汞蒸气：去除、放置和打磨汞合金。平均水平在85至326微克/立方米之间。然而，在修复操作之前，口腔内未检测到汞蒸气。这项调查还表明，在每个操作过程中：去除、放置和打磨，口腔内空气中汞蒸气浓度与汞合金修复体的尺寸之间存在显著的直接相关性。统计分析表明，在汞合金打磨过程中使用或不使用水冷却剂时，口腔内汞蒸气没有显著差异。
