烤瓷义齿牙齿及烤瓷牙冠用瓷粉中的铀含量。

Uranium content in porcelain denture teeth and in porcelain powders for ceramic crowns.

作者信息

Sairenji E, Söremark R, Noguchi K, Shimizu M, Moberg L E

出版信息

Acta Odontol Scand. 1982;40(5):333-9. doi: 10.3109/00016358209024078.

DOI:10.3109/00016358209024078

Abstract

Some porcelain denture teeth and porcelain powders marketed in Sweden haven been analyzed for the content of uranium. The fission track method and the delayed neutron technique were the methods used. Compared to results published previously the content of uranium was generally found to be lower in the brands analyzed. The denture teeth contained 23-186 ppm for Anatoform, 35-137 ppm for Myerson, 15-45 ppm for Candulor G and 20-53 ppm for Vivopearl. The baked and fired porcelain powders showed values of about 2.8 ppm at most, those in the form of powder about 25 ppm at most. The radiation dose to the mucosa of the upper lip was calculated and is discussed.

摘要

对瑞典市场上销售的一些瓷质义齿牙齿和瓷粉进行了铀含量分析。采用的方法是裂变径迹法和缓发中子技术。与先前公布的结果相比，在所分析的品牌中，铀含量普遍较低。义齿牙齿中，Anatoform品牌含铀量为23 - 186 ppm，Myerson品牌为35 - 137 ppm，Candulor G品牌为15 - 45 ppm，Vivopearl品牌为20 - 53 ppm。烤瓷粉和烧制后的瓷粉铀含量最高约为2.8 ppm，粉末状瓷粉最高约为25 ppm。计算并讨论了对上唇黏膜的辐射剂量。