Do you envy people with white teeth? Are you also eager to smile with confidence? Many people’s answer is yes. So they will seek a variety of prescriptions, and ultimately teeth are not white, but a waste of time and energy, and even more destroyed teeth, can be more than worth the loss. Some people will buy teeth whitening products in pharmacies, supermarkets, or online for their own use. Tooth whitening products include whitening toothpaste, tooth whitening film, bleaching coating, bleaching gel and other forms. However, due to the lack of doctor’s guidance, if you use these products on your own, the whitening effect may not be good and there is a risk of misuse and overuse. In addition, most of these products contain bleaching agents such as hydrogen peroxide, sodium perborate and hydrochloric acid, thus they are more likely to cause adverse reactions such as tooth sensitivity, gum irritation, cervical and extra-root resorption. Myth 2: Teeth whitening without dental examination before teeth whitening Although teeth whitening is safer, not everyone can do it. If you are a patient with serious periodontal disease, it is easy to cause tooth sensitivity and even bleeding after doing teeth whitening by medical means. Therefore, doctors usually recommend you to wait for periodontitis to heal before whitening your teeth. In addition, if you are under 18 years old and your teeth are not fully developed, you are also not suitable for teeth whitening, and pregnant women are also better not to have teeth whitening. Myth 3: Eat a lot after teeth whitening Within 48 hours after teeth whitening, you should not eat food that is too cold or too hot, and do not drink coffee, tea, cola and other drinks with staining effect. To prevent your teeth from absorbing more pigment at this time, it is better not to eat foods that are easy to stain, such as mulberry, spicy hot pot, etc., and it is not advisable to chew betel nut or smoke locally for a week. Misconception four, the technology is similar anyway, choose the cheap one. There are a lot of friends because of the desire for cheap and go to some small informal hospitals for teeth whitening, but I do not know that some informal hospitals are not qualified in terms of hygiene, it is likely to cause cross infection while whitening. In addition, some whitening technology is not qualified can also hurt the gums, so for the whitening effect and safety, please go to a regular hospital for whitening. Myth 5: The whiter the teeth, the better The outer layer of teeth is enamel, which has translucent characteristics, and the color of dentin in the inner layer of enamel is not white, but yellowish, and its color will partially pass through the enamel, thus giving the teeth a certain light yellow color. Therefore, the whiter the teeth are, the better. A tooth color that looks natural and harmonizes with your skin tone and personality is the best choice.