Yellow teeth scaling can not make teeth white, scaling is mainly to remove calculus, plaque, can improve the yellow teeth to a certain extent, but can not be whitened. Yellow teeth cleaning can not make teeth white, although it can improve the phenomenon of yellow teeth to a certain extent, but can not make it completely white. Scaling is not able to treat the disease of the tooth itself, but to remove the calculus, plaque, so as to alleviate the phenomenon of periodontal inflammation. Yellowing of teeth is mainly caused by exogenous and endogenous factors. If it belongs to exogenous factors, then scaling can indeed remove some of the locations, so that their teeth restore the original color and look whiter, but not really white. If it belongs to endogenous factors, then it needs to be whitened by cold light whitening, laser whitening, dental veneers and so on. After the appearance of yellow teeth, you need to be clear about which cause of yellow teeth, it is recommended that the patient timely consultation, a clear diagnosis and follow the doctor’s instructions to take a standardized treatment program.