Tamburús J R
Depto. de Estomatologia da Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo.
Rev Odontol Univ Sao Paulo. 1990 Apr-Jun;4(2):103-7.
The author studied the radiopacity of six composite resins, submitted to radiographic examination in standardized conditions, only with kilovoltage variations. Along with resins it was radiographed an aluminium penetrometer, to compare their optical densities. The results showed that kilovoltagem variations interfered in optical densities of the resins, being more pronounced in 50-55, 55-60 and 60-65 kilovoltages. Despite this, the relations of optical densities as compared with that of penetrometer steps kept unaltered most fo the kilovoltages used.
作者研究了六种复合树脂的射线不透性，这些复合树脂在标准化条件下仅通过改变千伏进行射线照相检查。除了树脂外，还对铝质透度计进行了射线照相，以比较它们的光学密度。结果表明，千伏变化会干扰树脂的光学密度，在50 - 55千伏、55 - 60千伏和60 - 65千伏时更为明显。尽管如此，在所使用的大多数千伏下，与透度计阶梯的光学密度关系保持不变。
