Persistent soreness.

Persistent mouth pain is often a sign of dental problems, including tooth sensitivity or tooth decay. The bacteria that cause tooth decay break down the sugar in meals and produce acid. This acid erodes the enamel of the teeth, forming cavities and causing pain. If a cavity is left untreated, the lesion may spread to the pulp or dentin, which can cause severe pain. However, tooth sensitivity can sometimes lead to discomfort that lingers for a long time. Teeth may react to enamel loss or receding gums that expose the dentin or root of the tooth, which is more sensitive to hot, cold, and sweet and sour stimuli. In addition, various oral diseases, including malocclusion and periodontitis as well as pulpitis, may show similar symptoms. Therefore, you should seek medical attention as soon as you notice persistent pain so that any problems can be identified and resolved as soon as possible.