It is difficult to remove calculus with white vinegar alone, but white vinegar is effective in softening calculus. To remove calculus, you should go to the hospital for ultrasonic cleaning. 1. Calcium carbonate is the main component of calculus, and the acetic acid in white vinegar reacts with calcium carbonate to form calcium acetate, so brushing teeth after rinsing with vinegar can effectively inhibit the growth of oral bacteria and the formation of tartar. However, it is difficult to remove tartar completely by using vinegar therapy alone, and vinegar therapy is usually used as a supplementary therapy to ultrasonic cleaning to help patients remove tartar. 2. However, vinegar therapy should not be used frequently and continuously, vinegar will erode the tooth enamel while softening the calculus, which will demineralize the tooth enamel, acidify the teeth, reduce the hardness of the teeth, and easily cause tooth allergy. Therefore, patients with dental calculus should go to the hospital in a timely manner to avoid self-treatment, should be under the guidance of a professional doctor to carry out regular treatment.