Plaque can be gotten rid of by brushing, flossing, and scaling, and calculus can be removed by cleaning. Plaque is mainly caused by microorganisms adhering to the teeth because of food residues that have not been cleaned. It is recommended that patients brush their teeth on time in their daily lives, clean their mouths in a timely manner after eating, and adhere to the correct way of brushing can help patients remove plaque between the teeth and gums. Patients can also use dental floss to clean the plaque between the teeth and teeth, and can also go to the regular hospital for ultrasonic scaling. Most of the calculus is formed due to the plaque in the mouth is not cleaned in time, the patient can go to the hospital, with the help of the doctor to take the way of cleaning to remove the calculus, mainly to take the supragingival scaling, subgingival scaling and so on. Patients suffering from plaque or calculus should develop healthy brushing habits, and if they cannot remove it on their own, they need to go to the hospital.