Can cold light beautiful white harm tooth after all?
A lot of people feel the white teeth, clean can cause harm, damage the tooth enamel surface, produce some complications, such as pulpitis, periodontitis, gingival atrophy and so on.
Today to everyone popular science, the principle and effect of cold light whitening, see it in the end will not hurt teeth.
Cold light whitening principle first let’s understand its principle: cold light whitening is to use hydrogen peroxide and silica based whitening agent, through the way of REDOX, after special light treatment, through the dentin tubule, remove the pigment on the surface and deep layer of the tooth, so as to achieve the effect of tooth whitening.
Because a few weak acid is contained in whitening agent, reason has the effect of decalcification.
So, a few days after receiving cold light whitening, the teeth will have an uncomfortable feeling, especially when cold, sweet and sour, and return to normal after a few days.
1, exogenous coloring: daily food with pigment such as: cola, tea, soy sauce and other causes of tooth coloring.
2. Endogenous coloring: mild to moderate tetracycline teeth, dental fluorosis, or discolored teeth caused by other factors, hereditary yellow and black teeth, etc.
3, aging discoloration: with the increase of age, teeth will slowly wear, so there will be yellowing.
Not suitable for people 1, pregnant women and suffering from certain diseases such as asthma, heart disease;
2. For people who have installed porcelain veneer or denture, whitening agent cannot be applied to artificial materials;
3. In patients with severe periodontal disease, the exposed root part can not be white, which will cause color difference;
4. Adolescents under 16 years of age and people with enamel hypoplasia.
5, there are dental caries and other problems, need to do filling before whitening;
6, gingivitis and other oral diseases have a look at the cold light whitening process!
1. Eye protection: Wearing goggles can avoid eye injury in the process of blue light irradiation.
Lip protection: Apply Vaseline/lip balm to avoid dry and chapped lips for too long.
2. Gingival protection: the gingival neck is coated with light-curing resin gingival protective agent to avoid gingival burns by whitening agent.
3. Whitening agent: Apply the whitening agent containing hydrogen peroxide/urea peroxide to the tooth surface with a small brush.
4. Cold light irradiation: after applying whitening agent, high-intensity blue light with wavelength between 480-520 nm is used to vertically illuminate the tooth surface for 8 ~ 10 minutes.
