What is the effect of tooth whitening by friction?

The credibility of tooth whitening prescription is low. Tooth whitening folk prescription, I believe you have tried a lot, is not good? Experts warn that many tooth prescriptions on the Internet are actually deceptive. Beauty seekers must not try blindly to prevent damage to their teeth.
Vinegar? Beware of acidosis
It is very wrong and dangerous to brush your teeth after eating vinegar. Children in kindergarten have done such an experiment: if you put an egg in vinegar for one night, you will find that the eggshell softens and melts the next morning, a phenomenon similar to the effect of vinegar on teeth. The acetic acid in vinegar dissolves the surface of the teeth, and if you then brush the teeth, the enamel on the surface of the teeth will be removed. Although the teeth do look whiter, the price is that the teeth are getting thinner and smaller. And the surface of the teeth is extremely irregular under the microscope, making it easy to deposit other pigments. In other words, your teeth may look whiter within a few days of using this method, but over a long period of time, they are more likely to turn yellow and black. There is a kind of acid erosion in medicine double dildo , which is due to the return of stomach acid to the mouth, causing acid erosion of teeth. If you have the opportunity to look at their teeth, you will have a more intuitive feeling of the serious consequences of this practice.
As for the practice of wiping teeth with lemon juice, the citric acid in lemon juice is an organic acid rabbit vibrator , which can also corrode the surface of teeth and damage enamel.
Not only should we not use vinegar and lemon juice to whiten our teeth, but after eating acidic foods and drinks, such as sour candied fruit, preserved plum, fruit juice, cola and other carbonated drinks, we should also gargle with water immediately to reduce the attachment of acid to the teeth. Remember: do not brush your teeth immediately. Because the hardness of teeth decreases greatly under the action of acid at this time, brushing teeth immediately can easily cause enamel wear, resulting in tooth sensitivity and tooth defects. It's best to brush your teeth about half an hour after eating and drinking.
Friction whitening, which you do all the time.
Dried orange peel powder, yeast powder, chopped peanut powder, cuttlefish bone powder, these painstaking efforts, in fact, you have been doing. The food you eat at ordinary times can clean your teeth. No matter what to eat three meals a day, chewing food at the same time to make the food constantly rub the teeth, play a certain degree of cleaning effect. Of course, foods that are easy to stick to your teeth or candy that can cause tooth decay are not included. If the teeth are naturally tilted, or are used to chewing with only one tooth, the surface of the idle teeth is not as clean as the normal teeth, because there is no food friction.
In addition, the main ingredient of toothpaste is friction, but these particles are smaller than food crumbs, so they can be cleaned to smaller tooth spaces. The friction agents in toothpaste have been proved by a large number of clinical experiments, not only will not damage the enamel, but also can increase the brightness of teeth, so it is a safe and effective tooth cleaning method.
It should be emphasized that whitening teeth through friction has a certain effect on the light coloring of the tooth surface, but there is nothing it can do to change the color of the teeth themselves.
Our slogan is: tooth whitening needs science.
The staining of teeth is mainly divided into exogenous staining and endogenous staining. According to the different coloring and severity, professional dentists will use different methods to deal with it.
Polishing: exogenous coloring includes tea dirt penis pumping huge anal dildo , smoke stains, dental calculus and so on. These can be cleaned and polished in the hospital to restore the color of the teeth. Usual food friction and tooth brushing can only remove superficial bacteria and weak coloring, so it is necessary to have a professional tooth cleaning and polishing once a year to help clean up areas that are neglected in daily cleaning.
Bleaching: endogenous coloring may be caused by aging, tetracycline deposition, dental fluorosis, etc., mainly due to changes in the color of dentin or enamel, which need to be removed by chemical bleaching. Chemical bleach can penetrate enamel and dentin, oxidize the pigment particles deposited inside the teeth and convert them into colorless substances. There are also some special instruments in the hospital, such as cold light, laser and so on, which can assist bleach to play a role, so that it can destroy pigment molecules more quickly and achieve the purpose of whitening.
Restoration (covering): for patients with severe tetracycline staining or dental fluorosis, professional veneer or porcelain crowns are required. Veneer is to remove a surface of discolored teeth (usually the outer side of the front teeth), and then paste a layer of resin or all-ceramic sheet on it to cover the discolored area to form a natural and white tooth surface. For teeth with severe discoloration and defects, because the area that needs to be covered is larger, the original teeth must be completely covered with the whole artificial crown.
Xiaobian conclusion: whitening teeth should not hurt the teeth on the basis, otherwise would rather not whitening teeth. In this regard, it is recommended that you go to the regular hospital and whiten your teeth under the guidance of the doctor.