Utility of intraoral stents in external beam radiotherapy for head and neck cancer.

Aim: This study aimed to assess the utility and stability of intraoral stent during intensity-modulated radiation therapy (IMRT).

Background: The benefits of intraoral stents in radiotherapy are unclear.

Materials And Methods: We analyzed 386 setup errors in 12 patients who received IMRT for head and neck cancers without intraoral stents (intraoral stent [-]) and 183 setup errors in 6 patients who received IMRT with intraoral stents (intraoral stent [+]).