(1) rinse with mouthwash and reduce the pollution of the mouth.
(2) use the ultrasonic cleaning machine to clean the teeth.
(3) scrape the deep part of the periodontal.
(4) use sandblasting treatment for the accumulated pigment.
In the process of jie zhi, the patient needs to keep his mouth open, for long time the mouth is very uncomfortable for the patient, and the long operation is a kind of torture to the doctor. Therefore, in clinical practice, less and less manual cleaning and treatment is replaced by ultrasonic cleaning.
