Common tooth whitening methods Note that due to conflicts of interest, doctors usually only tell patients the effect of tooth whitening, and will not explain the possible side effects of the tooth whitening methods adopted. Readers should note that our "shortcomings" are fully revealed for the first time in the following methods:
1. porcelain teeth
Especially for the case of tooth defect, the better cosmetic restoration method is porcelain teeth, which is also the most fitting oral prosthesis with the color effect closest to the natural color. Because the bacteria on the surface of porcelain teeth can not survive, there will be no tooth decay except whitening effect.
Suitable for people: suitable for moderate and severe tetracycline teeth, dental fluorosis, teeth with enamel hypoplasia, cracks, defects and pits, with obvious whitening effect.
Duration: theoretically, if there is no problem with gum health (it is difficult to do it in practice), it can last for more than ten years or even a lifetime.
Advantages: the tooth whitening effect is obvious, and it can be whitening as long as possible, lasting or even once and for all.
Insufficient: To make porcelain teeth, the original teeth must be ground small, and the damage to the teeth is irreversible. Teeth ground into strips are very fragile. After a period of time, it is very likely that there will be sequelae such as gingivitis, periodontitis and gingival atrophy.
2. Cold light whitening
This is a fast and safe tooth whitening technology. The low temperature and cold light avoid the stimulation to the tooth nerve during the treatment. The main component of whitening agent is hydrogen peroxide, which is disposable and non-irritating. The advantage is that the process is simple. Apply a protective agent to the gingival margin, then apply a whitening agent to the tooth surface, and irradiate it with a cold light whitening lamp (according to the tooth coloring degree of 8 ~ 10 minutes), then remove the whitening agent and apply a new layer of whitening agent. This process is repeated three times, and the whole process is only 30 ~ 40 minutes.
Suitable for people: exogenous pigment teeth (coffee, tea stains, cigarette stains), moderate and mild tetracycline teeth, drug-induced discolored teeth and hereditary yellow teeth.
Duration: about 2 years.
Advantages: Cold-light tooth whitening technology can improve the effect by 5 levels to 14 level; The low-temperature cold light is adopted to avoid the damage to the tooth nerve during the operation; The operation process does not touch the gums at all, and will not cause damage to the tooth structure.
Deficiency: Cold light whitening is to apply a layer of gel to teeth with cold light irradiation, which can decolorize teeth. Therefore, cold light whitening is actually whitening teeth by bleaching drugs. Laser is only an auxiliary tool to improve the decoloration speed of drugs. My teeth feel sore during the operation. It is precisely because bleaching agents damage the enamel on the tooth surface that dentin hypersensitivity (cold-heat reaction) and even tooth embrittlement are more likely to occur.
Step 3: Veneer whitening
Veneer whitening is to put a layer of veneer on the tooth surface to cover the discolored teeth. Nowadays, popular tooth veneers can be divided into resin veneers and porcelain veneers. Resin veneer is to paste resin on the surface of teeth after grinding off some teeth, which can keep the shape of teeth the same as before. Porcelain veneer combines the advantages of porcelain teeth and resin veneer, which is both beautiful and realistic. This is based on the latest computer ultra-precision sculpture cutting equipment and technology. The "whitening patch" similar to tooth enamel is cut into a shape that fits the tooth completely. The patch is closely embedded in the tooth with a special active interface material, so it is more expensive than resin and lasts longer.
Suitable for people: tetracycline teeth, drug-induced discolored teeth and hereditary yellow teeth.
Duration: theoretically, it can reach more than ten years.
Advantages: Compared with resin veneers, the color and shape of porcelain veneers are very good, and there is almost no difference from real teeth. Its manufacturing process is very fine, and it is the main method to treat tooth defect and dentition loss.
Insufficient: Although the teeth will turn white immediately after veneering, they are natural and lifelike, but they are still easy to fall off and change color, which may easily cause sequelae such as gingival swelling, bleeding and inflammation; A certain thickness of resin veneer will make lips slightly convex, which will have a certain impact on the appearance and is expensive.
4. Tooth bleaching
Bleaching is to customize a transparent tray, squeeze the liquid medicine on the tray every night and sleep with the tray on. Bleaching can be divided into "external" and "internal" types: external bleaching is suitable for bleaching treatment of moderately defect-free dental fluorosis and tetracycline teeth, and satisfactory results can be achieved in 3 ~ 5 weeks. Internal bleaching: it is mainly used for the restoration of discolored anterior teeth, pulpless teeth or teeth with severe tetracycline discoloration. The method is to do conventional root canal therapy first, then put the cotton ball soaked with 30% hydrogen peroxide into the medullary cavity, seal it tightly with zinc oxide clove oil cement powder, and change the dressing every 2 ~ 3 days, and the effect is good for 4 ~ 7 times. Finally, the cavity is filled with composite resin. This method is very harmful and painful to teeth.
Applicable people: Suitable for slight pigment teeth's hypoplasia and tooth yellowing caused by the change of enamel with age.
Duration: 2 ~ 3 years.
Advantages: the price is relatively cheap.
Deficiency: It is not effective for tetracycline teeth and dental fluorosis with heavy colors, because it can only whiten the surface layer, which is not lasting, but it is easy to cause dentin allergy. It should be noted that bleaching is not effective for everyone, and it is also ineffective for tetracycline teeth and dental fluorosis with heavy colors, because it can only whiten the tooth surface, which is not lasting, and it is easy to cause dentin hypersensitivity due to the damage of bleaching agent to enamel.
5. Tooth washing (also called sandblasting)
Tooth washing means that doctors use ultrasonic dental scalers and sandblasting dental scalers to remove dental calculus and plaque on the tooth surface and wash away calculus and calcified dirt on the tooth surface. Washing teeth is completely different from brushing teeth. It can not only clean the dirt on the surface of teeth, but also completely remove dental plaque, stones and pigments that cannot be removed by brushing. When cleaning teeth, it is easy to find tiny and imperceptible dental diseases, such as recessive dental caries, so as to achieve the purpose of early detection and early treatment.
Targeted: it can remove the pollutants on the tooth surface and has a good effect on mild tooth discoloration.
Duration: half a year.
Advantages: Whitening teeth while maintaining periodontal health.
Disadvantages: It's just that the surface is white, not white. After tooth cleaning, a small number of people will have teeth that are sensitive to cold and heat. Frequent tooth washing will cause the loss and damage of enamel on the tooth surface.
Whitening teeth
White teeth whitening is a new method of tooth beauty that breaks through cold light whitening. In the United States, more than one million people have used whitening technology to beautify their teeth, which is called the best beauty project for lunch break. It makes up the deficiency of traditional tooth whitening technology, and the whitening effect is more direct and lasting, and it is rapidly popularized in Europe, Japan, South Korea and China.
Suitable for people: yellow teeth, black teeth, tetracycline teeth, dental fluorosis, exogenous pigment teeth (coffee and tea stains), medicinal discolored teeth and hereditary pigment teeth.
Advantages: Whitening teeth protects teeth at the same time, and the whitened teeth are white, natural, shiny, transparent, safe and have no side effects.
Insufficient: The whitening effect can only last for a few years, and it cannot achieve lifelong whitening.
The longest tooth whitening experiment proves that the electric toothbrush removes 38% more dental plaque than the manual toothbrush, and its cleaning ability has been unanimously affirmed by dentists. The best electric toothbrushes are Braun Oral B and Philips. Relatively speaking, Oral B is cost-effective and generally recommended by foreign professional dentists. There are models specially used for tooth whitening, such as D 12Vitality- Liang Jie model, with a special bright white brush head. 14 days can remove 90% of dental plaque. Specific product information can be downloaded by Baidu.
Investigation shows that electric toothbrush is more scientific and effective than ordinary toothbrush. It can completely remove dental plaque, reduce gingivitis and gingival bleeding, and is also a very popular commodity in many countries in Europe and America. The electric toothbrush rotates rapidly, which makes the brush head vibrate at high frequency, instantly breaks down the toothpaste into tiny bubbles, and deeply cleans the teeth. At the same time, the vibration of bristles can promote blood circulation in the oral cavity and have unexpected massage effect on gingival tissue. Using an electric toothbrush twice a day can achieve a more lasting tooth whitening effect.
The most economical method of tooth whitening is 1. Tooth whitening: when brushing your teeth, add a little Suda to the toothpaste. Brush your teeth as white as jade for three times, and the tooth rust will naturally fall off.
2. You can use old vinegar and white vinegar (but not vinegar essence), put it in your mouth 1 minute to 3 minutes, and then spit it out to brush your teeth.
The effect is very good. But even the teeth will feel very sour, and the numbness (feeling will last for about 2 minutes) will not last. Do it often, about once every two months, and it will be fine. Otherwise, it's bad for your teeth. It is an emergency method (for example, before going out on a date, I found my teeth are so yellow). Well, it can also get rid of bad breath:)
3. Dry the orange peel, grind it into powder, mix it with toothpaste and brush your teeth, and your teeth will soon turn white.
4. When brushing your teeth, using some yeast powder on your toothbrush can help whiten your teeth (the method commonly used by MODEL).
5. After brushing your teeth, wipe each tooth with lemon juice.
6. Chew raw peanuts, don't swallow them, and brush your teeth with peanut crumbs as toothpaste, which can make your teeth white.
7. Use the bones of cuttlefish, crush them and put them in a toothbrush to be used as toothpaste, and get immediate results (cuttlefish is cuttlefish and squid. It has a big white bone. If you scrape with your nails, a lot of white powder will come out. If this powder is used as toothpaste, teeth will turn white. )
8. Sprinkle some salt on the toothpaste every time you brush your teeth.
Precautions for tooth whitening A. After tooth whitening, you can apply lip balm to patients to avoid discomfort caused by long-term mouth opening.
B, general patients need to take painkillers after tooth whitening treatment to prevent dentin hypersensitivity.
C doctors should tell beauty seekers what to pay attention to, what to eat and what not to eat after treatment.
D, communicate with the doctor before tooth whitening treatment, so that the doctor can have a good understanding of his teeth, and he should also have a detailed understanding of this process, which can improve the treatment effect.
How long can tooth whitening last? After tooth whitening, the tooth whitening effect can last for a long time without deliberately using articles and food harmful to teeth and insisting on whitening and cleaning teeth 1-2 times a year.
Tooth whitening care tooth whitening care 1: Pay attention to diet.
Teeth are most easily stained within one day after whitening by cold light. Beauty lovers should be careful not to drink coffee, cola and other drinks, and not to eat dark food. In particular, smoking has a greater impact on the maintenance of tooth color, and beauty lovers should pay more attention not to smoke.
Tooth whitening care II: Pay attention to cleaning
Tooth washing can effectively prevent teeth from re-coloring, and beauty lovers can further use whitening buffer and fluoride under the guidance of doctors to make teeth stronger. In addition, beauty lovers should pay attention to brushing their teeth and gargling in the morning and evening to keep their mouths clean. In addition, regular follow-up visits to the hospital can also remove exogenous pigmentation in teeth and make the whitening effect more lasting.