Degree of influence on the attractiveness of a man hardly anything else can match with a beautiful smile. A beautiful smile – is, first of all, white teeth. But it turns out that white teeth – does not mean healthy. So before you believe the beautiful words in various commercials, let’s try to understand the following questions: what is the natural white teeth whitening that is how to whiten your teeth without harm to their health?
History of development of teeth whitening
Practice lighten the teeth more than two thousand years. Healers Slavic peoples for more effective results, carried out before bleaching grinding of the surface layer of enamel metal file, and then used a weak solution of nitric acid. Such a procedure was used until the end of XVIII century. Vividly interest in matters of aesthetics smiles and teeth showed in the beginning of the XIX century. Was the most effective method of whitening teeth, in which an active element was chlorine produced from the solution of calcium acetate and the hydrochloride. By 1910, all teeth whitening methods included the use of hydrogen peroxide with a heated tool or light vozdeystviem.V 1918 was opened principle activating whitening using thermal radiation, which has been successfully applied in our time. Light emission of high intensity causes a rapid temperature rise in the hydrogen peroxide solution, which leads to a rapid acceleration of bleaching chemicals.
Modern methods persists or significantly reduce most types of external and internal teeth staining. Whitening results generally stably stored for 1-2 years.
The main causes of tooth discoloration
Natural white teeth – is not quite the dazzling white light that flashes in advertising. Any dentist will tell you that natural shade of tooth enamel (outer layer that protects your teeth and determine their color) – this is a slightly yellowish or ivory. This enamel is the most robust.
Why the color of teeth with age inevitably yellow or dark?
Their mark on the teeth leave pigments of different products: coffee, tea, tobacco, red wine, berries and chocolate. Elevated levels of fluoride in drinking water can also cause tooth discoloration, the appearance of brown spots (fluorosis). Age-related changes also affect tooth color: as the years enamel is erased and it shines through darker dentin (the interior of the tooth). Just under the influence of acid, which is formed in the mouth when eating, she destroyed the enamel layer becomes thinner than her, and eventually through it starts to appear yellow dentin. This process is especially important for the sweet tooth, so when receiving sweet food produces more acid. A cola lovers should know that this is one of the best solvents tooth enamel.
Who should not whiten your teeth?
People with gum disease, with bare necks (basal portions of the teeth) and dental caries. They should start to resolve the existing problems to teeth whitening is not created then additional inconveniences. Pregnant women, nursing mothers and children under 16 years should also refrain from teeth whitening because of physiological processes occurring in the teeth during these periods of life. A contraindication allergic reaction to hydrogen peroxide, as well as pathological or age enamel abrasion, or deep cracks on its surface.
Teeth whitening techniques
In teeth whitening can be divided into two main areas:
– Chemical bleaching tooth enamel active component (hydrogen peroxide) under the influence of the activator (special light bulb or laser – only in the dental office) or without an activator (as in the clinic and at home);
– mechanical cleansing of teeth from plaque through a variety of abrasive products – in other words, return the teeth to their natural whiteness without distorting the color of tooth enamel.
By mechanically cleaned include whitening toothpastes . Typically, these pastes contain solvents or abrasive materials that remove stains from the surface of the enamel. These products must meet stringent requirements for safety and efficacy. Unfortunately, in practice, these two things are incompatible, so compared to professional techniques result from the use of toothpastes is not so stunning, and constant exposure to abrasive materials could adversely affect the tooth enamel and lead to abrasion and hypersensitivity.
Chemical whitening methods.
Professional whitening in the dental office (technique for “vital” teeth).
1. Photographed before bleaching or teeth color is determined using a special palette.
2. Gingival tissue isolated by special means, and the tooth surface is cleaned with a special paste.
3. On the dried surface of the teeth whitening gel is applied which is activated by a specially designed light bulb. High intensity light emission causes a rapid temperature rise in the hydrogen peroxide solution, which leads to increased chemical bleaching teeth hydrogen peroxide decomposes to water and oxygen which penetrates into the fabric and discolor the tooth (oxidizes) pigments, without changing the structure of the tooth tissue. Treatment time is 30 to 45 minutes.
4. The teeth were then washed with water at room temperature, remove the insulation and cover fluorinated gel to prevent hypersensitivity.
Basis bleach system – special whitening gel, which is exposed to light a special lamp liberated oxygen molecules. Active oxygen is able to penetrate into the deeper layers of the tooth and even eliminate their strong and lasting pigmentation.
Before bleaching gel is applied to the teeth, which reduces their sensitivity. Protect lips cream-fotoprotektorom and oral mucosa are isolated. At the session, the eye wear safety goggles. The formula whitening gel contains amorphous calcium phosphate, which strengthens the structure of your teeth. The lamp emits light of a particular wavelength. After the procedure, the tooth surface covered with fluorine and calcium-containing preparations. The whole procedure is painless and psychologically comfortable. Result Zoom whitening term and subject to compliance with the doctor’s recommendations.
In the method for activating a laser bleaching bleaching composition (which also contains hydrogen peroxide) laser is used, wherein each individual tooth will illuminate a laser beam by approximately 2 minutes. According to supporters of laser whitening effect of this procedure is more pronounced due to the ability of the laser to split pigments.
Teeth whitening at home.
These methods include using special whitening mouthguards, whitening strips, whitening toothpastes or traditional methods.
I want to elaborate on this method, as whitening mouthguards (“night” bleaching), since this method requires the control of the dentist. The doctor will make casts of your jaw and will make them cases of soft plastic. These aligners are filled with whitening gel on your teeth disappear-and leave overnight or for 1-2 hours in the afternoon. The duration of this procedure depends on the sensitivity of the gel zubov.Otbelivayuschy usually less concentrated (up to 16% hydrogen peroxide). This teeth whitening takes in length from 2 to 6 weeks. The effect persists long enough, a big plus here is that the aligners are you and you can use them more than once. With this method, the teeth can become sensitive to cold and heat. Most commonly associated with this discomfort continues from one to four days and tested with the cessation of bleaching.
Bleach or not?
If a person is seriously concerned about the color of their teeth, it is necessary to establish the true cause of the color change and define a method that would provide whitening and was the most safe for health.
So-called “amateur” system, which can be bought in pharmacies or stores and use them without a dentist, are much less effective. Such systems typically only help to get rid of surface blemishes and improper application may provide their side effects on teeth and gingival tissues.
Therefore, to whitening procedure proceeded without harm to your health, it is strongly suggested to resort to professional whitening methods that are performed in the clinic under the supervision of a dentist.