Introduction: Veneer whitening is to stick a layer of veneer on the surface of the teeth to cover the discolored teeth. Today’s popular dental veneers can be divided into two types: resin veneers and porcelain veneers. Resin veneers are made by placing resin on the tooth surface after part of the tooth has been removed, which can keep the shape of the tooth as it was originally.

What are the methods of teeth whitening?

1. Cold light whitening

This is a tooth whitening technology that is said to be fast and safe. Low-temperature cold light avoids stimulation of the dental nerve during treatment. The main ingredient of the whitening agent is hydrogen peroxide, which is disposable and non-irritating. The advantage is that the process is very simple. Apply a layer of protective agent on the edge of the gums, then apply a whitening agent on the tooth surface, and illuminate it with a cold light whitening lamp (8 to 10 minutes depending on the degree of tooth staining). Then remove the whitening agent and apply another layer of whitening agent. Apply a new layer of whitening agent. This process is repeated three times, and the whole process only takes 30 to 40 minutes.

Suitable people: teeth with exogenous pigmentation (coffee, tea stains, tobacco stains deposits), teeth with moderate to mild tetracycline, drug-induced discoloration and hereditary yellow teeth, etc.

Disadvantages: Cold light whitening uses cold light to coat the teeth with a layer of gel. The gel can discolor the teeth. May cause damage to tooth surface enamel.

2. Porcelain teeth

Especially for those with missing teeth, a better cosmetic repair method is porcelain teeth, which has the best adhesion and the closest color effect at present. Natural colored dental restorations. Since bacteria cannot survive on the surface of porcelain teeth, in addition to the whitening effect, there will be no cavities.

Suitable people: Suitable for severe cases of moderate to severe tetracycline teeth, dental fluorosis, enamel hypoplasia, teeth with cracks, defects, and holes. The whitening effect is obvious.

Disadvantages: To make porcelain teeth, the original teeth must be ground down first. The damage to the teeth is irreversible. The rod-shaped teeth are very fragile. After a period of time, gingivitis and periodontal disease will occur. The possibility of sequelae such as inflammation and gum recession is very high.

3. Veneer whitening

Veneer whitening is to stick a layer of veneer on the tooth surface to cover the discolored teeth. Today’s popular dental veneers can be divided into two types: resin veneers and porcelain veneers. Resin veneers are made by placing resin on the tooth surface after part of the tooth has been removed, which can keep the shape of the tooth as it was originally. Porcelain veneers, on the other hand, combine the advantages of porcelain teeth and resin veneers, and are both beautiful and lifelike. This is achieved by using the latest computer ultra-precision sculpture cutting equipment and technology to cut "whitening patches" similar to tooth enamel into The shape of the teeth is completely tight, and the patch is tightly embedded on the teeth using a special active interface material. Therefore, it is more expensive and lasts longer than resin.

Disadvantages: Although the teeth will whiten immediately after veneers, which is very natural and lifelike, they are still easy to fall off and change color, and can easily cause sequelae such as gum swelling, bleeding and inflammation; resin veneers have a certain thickness. It will make the lips slightly convex, which will have a certain impact on the appearance, and it is expensive.

4. Teeth scaling

Tooth scaling means that the doctor uses an ultrasonic scaler and a sandblasting scaler to remove calculus and plaque on the surface of the teeth, and wash away the calculus and plaque on the surface of the teeth. Calcified dirt. Teeth cleaning is completely different from ordinary brushing. It can not only clean the superficial dirt on the teeth, but also completely remove plaque, stones and pigments that cannot be removed by brushing. During teeth cleaning, it is easy to find small and invisible dental diseases, such as relatively hidden ones. of the lips and teeth to achieve the purpose of early detection and early treatment.

Disadvantages: It only whitens the surface, not whitens it. After teeth cleaning, a small number of people will experience soreness and softness in their teeth that are sensitive to hot and cold.

5. Teeth Bleaching

Bleaching means customizing a transparent dental tray, squeezing the liquid into the tray every night, and wearing the tray to sleep. Bleaching is divided into two types: "external" and "internal": External bleaching is suitable for the depigmentation treatment of moderate fluorosis and tetracycline teeth without defects, and satisfactory results can be achieved in 3 to 5 weeks. Internal bleaching: Mainly used to repair discolored front teeth, pulpless teeth or severely discolored teeth due to tetracycline. The method is to first perform conventional root canal treatment, and then insert a small cotton ball dipped in 30% hydrogen peroxide into the pulp cavity. Zinc oxide clove oil cement is tightly sealed, and the dressing is changed once every 2 to 3 days. Better results can be achieved after 4 to 7 times. Finally, the cavity is filled with composite resin. This method causes greater damage to the teeth and is very painful.

Suitable people: Suitable for mild pigmented tooth hypoplasia and yellowing of teeth caused by changes in tooth enamel with age.