A mouth full of sore teeth is an indication of chronic periodontitis, periodontitis will exist in the mouth a number of teeth have varying degrees of alveolar bone resorption, gum recession (receding) and root exposure, once the root is exposed within the mouth, the teeth will be outside the cold, hot, sour, sweet stimulation of soreness will lead to a mouth full of sore teeth. For patients with periodontal disease, systematic periodontal treatment should be done, including ultrasonic scaling and periodontal scraping to stop further resorption of the alveolar bone. In addition, the soreness of the teeth may also be caused by the incorrect brushing force and brushing method, resulting in a wedge-shaped defect in the neck of the teeth, which in most patients occurs in the neck of multiple teeth in the mouth and therefore causes the symptoms of soreness of the teeth. For cervical wedge defects can be clinically filled with resin to restore the shape of the tooth tooth soreness will be significantly relieved.