Fabrication and use of an intracavitary radiotherapeutic applicator for the posterior sinus wall: a case report.

The essential features of and the prosthodontic procedures necessary for fabricating a radiation applicator from dental acrylic resin for use in a clinical case of recurrent squamous cell carcinoma treated by intracavitary radiotherapy are described. A method for reducing radiation dose to the optic chiasm using Cerrobend alloy is presented.