Vertical cracks are visible in the teeth under strong light, and may cause mild pain or tenderness when eating, and may cause pulpitis in severe cases. Vertical cracks may appear due to eating some too hard food, or too hard food touches the tooth enamel, causing the enamel to crack. Vertical cracks can be seen under the bright light of the tooth, if the degree of cracking is very light, you can not see the vertical cracks in ordinary life, only under the bright light can be seen is vertical cracks, when eating, there can be a mild pain. If you eat acidic food, such as lemon, pineapple, the teeth will appear sour and soft performance, such vertical cracks are very easy to appear caries, causing pulpitis. Patients with vertical cracks visible under strong light are usually restored with full crowns, which need to be checked for pulpal inflammation before treatment. If there is pulp inflammation, endodontic treatment is required. If there is no pulp inflammation, crown restoration can be performed directly, i.e., the tooth is fixed by a brace to prevent the vertical crack from continuing to expand. Vertical cracks can be seen under the bright light of the tooth, it is recommended to go to the hospital in time, after clarifying the cause of the disease, according to the doctor’s guidance for standardized treatment.