A very tired bite can be the result of a varying number of missing teeth or a denture restoring an unbalanced bite. 1. Missing teeth. A tired bite may be due to a varying number of missing teeth, which reduces the efficiency of chewing or leads to lateral chewing, causing muscle soreness, and in severe cases, temporomandibular joint disorders. 2. Denture bite recovery imbalance. The teeth bite is very tired can also be seen in the denture to restore the occlusion function is not balanced, the whole mouth of the teeth to restore too high and too low easily cause muscle pain, bite weakness phenomenon. Or teeth localized filling has occlusal high point, long-term chewing is easy to cause periodontal membrane inflammation. The teeth bite is very tired mostly related to teeth and muscles, it is recommended to go to the hospital in time for examination and treatment.