Smoke stained teeth can usually be cleaned with a dental cleaning, which is done with ultrasonic vibrations. If there are no tobacco stains on the teeth, it is also usually necessary to clean them about once every six months to a year. If the patient is serious, it is generally recommended that the teeth be cleaned once every 3-4 months, and it is recommended that smoking be avoided as the best, so as to maintain good oral hygiene. Because smoking has a greater harm to the periodontal, easy to cause the lack of oxygen in the oral environment, enhance the ability of bacterial growth, easy to produce dental periodontal disease, or easy to produce other oral diseases, may also cause loss of gingival attachment, the oral cavity teeth will be more yellow, and prone to dental caries. When the appearance of tobacco stained teeth, the first scaling, if there is subgingival calculus, it is necessary to carry out subgingival scraping, and the most fundamental method is best to avoid smoking, so as to ensure that the teeth become white, and can not be repeated. In addition, you can also choose to do cold light whitening, can ensure that the teeth quickly become white, but need to have a taboo phenomenon, avoid eating heavier color food in order to maintain a long time.