Mild stains caused by smoking can usually be removed by ultrasonic cleaning, etc. Heavy stains are more difficult to remove completely by scaling.
The human mouth is usually an acidic environment, and when exposed to substances such as caffeine in tobacco, salt compounds may be formed, i.e., tooth stains, which accumulate around the teeth for a long period of time will not only affect the aesthetics and lead to yellowing of the teeth, but may also cause gingivitis, periodontitis and other diseases.
Mild tooth stains can be cleaned by ultrasonic scalers, etc., which loosen and remove the stains attached to the surface of the teeth through ultrasonic vibration.
For serious stains caused by long-term smoking, the pigment may have penetrated deep into the hard tissues of the teeth, and it is difficult to remove them completely through scaling, so sandblasting can be used to improve the situation.