Possible causes of tooth and ear pain together include acute pulpitis, wisdom tooth pericoronitis, trigeminal neuralgia, and coexisting ear and oral diseases. 1. Acute pulpitis: Acute pulpitis is an acute inflammation of the pulp tissue caused mainly by bacterial infection, with a rapid onset and severe pain that may radiate to the ear. 2. Wisdom tooth pericoronitis: Wisdom tooth pericoronitis refers to the inflammation of the soft tissues around the crown of the wisdom tooth, the onset of pain around the wisdom tooth, the pain may radiate to the same side of the head, face, ear and other locations. 3. Trigeminal neuralgia: Trigeminal neuralgia can cause severe pain in the face, ear, mouth and other locations. 4. Ear and oral diseases at the same time: If there are diseases in the oral cavity and ear at the same time, such as otitis media and periodontitis at the same time, it may also cause tooth and ear pain together. Tooth and ear pain can also be caused by other reasons, you should go to the hospital in time to find out the cause and carry out targeted treatment.