Teeth acidity may teeth sensitivity, caries and other factors related, usually can choose toothpaste desensitization treatment, oral treatment to restore. 1. Toothpaste desensitization treatment: If patients have obvious tooth acidity, they can choose anti-allergy toothpaste, which can effectively alleviate allergy symptoms. Generally speaking, this kind of toothpaste contains a certain amount of strontium chloride and sodium fluoride, which can effectively relieve the symptoms of sour teeth. 2. Oral treatment: if the patient has periodontitis, you can choose ultrasonic scaling or subgingival scraping; if the patient has caries or wedge-shaped defects, you can choose filling treatment, which can effectively alleviate the symptoms of sour teeth. It is recommended that patients usually do a good job of oral care to reduce exposure to sensitive substances. If the symptoms of acidity worsen, you should consult a doctor in time, and under the guidance of the doctor’s formal treatment.