It is recommended to consider subgingival scraping, regular scaling, and maintaining good oral hygiene. 1. Subgingival scraping: scaling can remove supragingival tartar, if there is also tartar under the gums, the phenomenon of tartar reappearing after scaling. At this time, you can consult a doctor under local anesthesia for subgingival scraping, local rinsing and medication, etc., to completely remove tartar. 2. Regular scaling: If the oral hygiene is not well maintained, it is easy for tartar to grow back. You can follow the doctor’s advice, regular scaling to remove tartar. 3. Maintain good oral hygiene: Maintaining oral hygiene has a positive effect on preventing the growth of tartar, usually pay attention to daily brushing, rinsing after meals, with the use of dental floss, mouthwash, etc., to maintain good oral hygiene.