A bite block is primarily used for which purpose?

A bite block is primarily designed to move the tongue out of the treatment field during radiation therapy, particularly when treating areas of the head and neck. This is crucial for ensuring that the radiation is delivered accurately to the intended target while minimizing exposure to surrounding healthy tissues, such as the tongue, which could otherwise absorb some of the radiation intended for the tumor. By using a bite block, healthcare professionals can maintain a stable position of the oral cavity, facilitating the precise alignment of the treatment beams and contributing to the overall effectiveness of the radiation therapy.