A new, simple method of making a spacer in interstitial brachytherapy for mobile tongue cancer

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Objectives.This article demonstrates a new method of making a spacer that increases the distance between the mandible and implanted radioactive sources in interstitial brachytherapy for patients with mobile tongue cancer.Study design.Fifty-three patients with mobile tongue cancer underwent interstitial brachytherapy with spacers made by this new technique.Results.Our spacer is not difficult to create or to use. The spacer was made from a plastic splint by using thermoforming techniques and quick self-curing resin, which did not need waxing, wiring, or casting. The surface of the spacer, which comes in contact with the tongue, is smooth because it is covered with tissue-conditioning material. There were no complaints of pain from the patients. Osteoradionecrosis of the mandible developed in only 1 (1.9%) of these patients.Conclusions.This spacer is simple to make and prevented osteoradionecrosis. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2000;89519-21)

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