| 摘要 |
This invention relates to the field of applying external beam radiotherapy to the oral cavity. The bite block provides a top portion arranged to support the maxilla of a patient and having a front portion arranged to extend outside the patient's upper labia and a rear portion arranged to fit inside the patient's upper dentals; a bottom portion arranged to fit inside patient's mandible and having a front portion arranged to extend outside the patient's lower labia and a rear portion arranged to fit inside the patient's lower dentals; and a bridging portion to be positioned outside the patient's mouth and extending between the maxilla and mandible to the front of the labia such that the top portion and bottom portion are spaced apart by the bridging portion. The bite block is made from a radio-translucent material. It may also be made of a thermo-plastic which becomes malleable when warm and can be bitten into the correct shape. It may further comprise a tongue depresser. |
