Occlusal malocclusion may lead to joint interference and early contact, the occurrence of malocclusion, the front of the ear is very sore is generally the emergence of temporomandibular joint disorder disease, specific as follows. 1. Joint interference and early contact: the occlusal high point exists when the upper and lower jaw teeth bite together, which can lead to lateral mastication and cause muscle dysfunction, and the position of the condyle in the joint fossa will change asymmetrically, leading to temporomandibular joint disorder and soreness. 2. Malocclusion: such as deep overjet and deep cover may lead to excessive backward displacement of condyle, open bite may be due to insufficient occlusal contact area, unstable occlusion, and imbalance of muscle strength of bilateral masticatory muscles, all of which may lead to temporomandibular joint disorder disease and soreness symptoms. Bite incorrectly, the front of the ear is very sore there may be other reasons, it is recommended to go to the hospital in time to consult the doctor, clear the cause of the disease for targeted treatment.