The tooth/filling/crown hit harder than others
Have you heard of the word occlusion? This refers to the contact between your teeth. You might hear your dentist say the word occlusion referring to the way your teeth bite together. Ideally, the pressure your mouth exerts when you are biting down should be distributed evenly. And there shouldn’t be a case of one tooth, crown, or filling bearing excessive force than it should or all the pressure is focused on one part of the mouth. This is only possible when the upper and lower teeth occlude correctly.
If your tooth or filling does not occlude correctly, you might experience some pain when you eat. In most cases, pain in the tooth begins after you have had dental treatment and the anaesthesia wears off. You may also feel the pain in the tooth opposite to the one that is sitting higher. This is due to the pressure transferred upon contact.
You should immediately visit the dentist if this is the case for you. Your dentist will evaluate your bite by using marking paper to discover which tooth is higher and help adjust your bite. Thereby, making the pressure from chewing spread evenly and relieving you of the pain.