The difference between scaling and teeth whitening is as follows: 1. Scaling is usually used to deal with calculus or pigmentation on the surface of the patient’s teeth, so scaling is actually used for basic periodontal treatment; 2. Teeth whitening is the treatment of discoloration of the teeth according to the cause of the discoloration of the teeth, if the teeth are stained because of staining foods, they can be bleached, or even scaled and sandblasted, which can also achieve a good effect. If the patient wants the teeth to be whiter as a whole, and the patient’s teeth themselves do not have any afflictions, bleaching with chemicals can also achieve the effect of enhancing the overall color of the teeth. Teeth whitening and scaling are actually two types of treatments, and the patient’s requirements and the purpose of the treatment are not the same, and the choice should be made accordingly based on the doctor’s examination. Scaling cannot replace whitening, and whitening cannot replace scaling. For some teeth whitening patients, basic periodontal treatment, such as scaling, needs to be carried out first, so that the teeth and gums can be healthy before choosing the appropriate whitening method.