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In treating the tonsil and soft palate with radium, it is necessary that the tube containing the radium should come in close contact with the neoplasm for a number of hours. It is impossible for the patient to hold it in position. When I am called to treat cancer at these sites, I have a dentist make a rubber plate to fit the upper jaw. At the back of this plate and on its undersurface I have a pure silver wire embedded. The wire is about 2 inches long and 1 mm. in diameter (Fig. 1). The tube containing the radium is properly screened (Fig. 2), and the wire is then wound about it and the whole then covered with a finger cot. The wire can be bent to any angle, and when the plate is in position, the tube, by manipulation of the wire, will come in direct contact
Hanford CW. A RADIUM APPLICATOR FOR THE THROAT. JAMA. 1917;LXVIII(25):1904. doi:10.1001/jama.1917.04270060312015