Calculus should go to the stomatology department for ultrasonic scaling to remove supragingival calculus, and do subgingival scraping if necessary. Calculus is one of the common diseases in oral periodontology, which is mainly due to poor oral hygiene, resulting in bacteria and food residues interacting with each other to form tartar on the surface of the teeth, etc. Tartar continues to be deposited and calcification and the formation of dental calculus. Tartar can cause bleeding of periodontal tissues, bad taste in the mouth or loose teeth, etc., and it is tightly adsorbed on the surface of the teeth and cannot be removed by ordinary cleaning methods such as brushing and flossing. It is recommended that you seek medical attention to treat the symptoms of calculus, which can only be removed by a doctor using specialized tools such as ultrasonic scalers or subgingival scrapers.