The main principle of whitening paste is to discolor teeth and lighten the color of yellow teeth and black teeth. However, the decolorant will stimulate the nerves and blood vessels at the gingival margin, which may easily lead to allergies, such as sourness, fear of cold and even infection. If used frequently, it will destroy the enamel structure, make the tooth surface rough, and in severe cases, dentin hypersensitivity will occur. If you really want to whiten your teeth, experts suggest that it is best to go to a regular hospital.
Tooth mask is not suitable for everyone. For example, patients with severe periodontal disease must be cured before whitening. In addition, the teeth of teenagers and pregnant women are sensitive and easy to cause discomfort, which is not recommended.
Extended data:
This kind of person can't do tooth whitening;
1, patients with dead pulp teeth. Because the main lesion of this kind of tooth is in the pulp and there is a dead pulp cavity, even if it is polished bright and white, it can fade in a short time, so this kind of tooth is not suitable for cold light whitening.
2. People with fillings and porcelain crowns on their teeth. Dental fillings and porcelain crowns are made of one material, not real teeth, so no matter how polished and bleached, there is no better effect, so they are not suitable for people with fillings.
3.1pregnant women under 6 years old in early and late stages. Because a person's teeth are not fully developed under the age of 16, even if teeth whitening surgery is performed, the aesthetic effect of teeth may be poor because of the loss of deciduous teeth in the later stage. It is easy for early pregnant women to have an abortion after this operation, and it is also a big taboo for late pregnant women to have an operation to give birth prematurely.
References:
People's Network-Dentist: Toothpaste is not suitable for everyone.
References:
People's Network-Who is suitable for tooth whitening? Who is not suitable for tooth whitening?