TrismusRadiotherapyRadiation InjuriesRadiation, IonizingDose-Response Relationship, RadiationRadiation ToleranceRadiation Injuries, ExperimentalNeoplasms, Radiation-InducedRadiotherapy DosageGamma RaysMolar, ThirdCombined Modality TherapyTooth ExtractionRadiation DosageWhole-Body IrradiationTooth, ImpactedBrain NeoplasmsRadiotherapy, Conformal