Teeth Whitening Misconceptions Reminder

1. Ordinary bleaching is ineffective against endogenous tooth staining

Common bleaching methods: whitening toothpaste, whitening toothpaste, whitening toothpaste, whitening toothpaste, etc.

Price of use: ranging from tens of yuan to 500 yuan, toothpaste and tooth whitening agent are cheaper.

How to use: The whitening agent acts directly on the teeth and achieves the effect of whitening teeth through the redox 

reaction of hydrogen peroxide and the tooth surface.

Whitening effect: This method has a certain effect on exogenous tooth staining, but it has little effect on 

endogenously stained teeth such as tetracycline teeth and fluorosis, because the inside of the teeth is black or yellow, 

even if it is bleached at that time , often returns to its original color after a few months.

Doctors suggest: Many new whitening products, such as new generation tooth whitening agents, laser whitening and 

cold light whitening, etc., have similar principles to the above methods. They have a certain effect on endogenous tooth 

staining, but the use period is longer than that of healthy teeth. It also depends on the degree of tooth discoloration. 

It is recommended that you use related products after taking the doctor's advice in the hospital for the first time whitening. 

If the discoloration is severe, you should consider porcelain crowns or veneers.

There are many reasons for tooth staining and yellowing, which are generally divided into two types: endogenous and exogenous: exogenous staining is due to the presence of a variety of bacteria on the tooth surface, which secrete many sticky substances on the tooth surface. Tea stains, tobacco stains in the diet, and certain minerals in the drinking water are adsorbed on these sticky substances, gradually turning the teeth yellow or black. Endogenous staining is formed during tooth development. If tetracycline is deposited in the dentin, it will turn the teeth into yellow, brown or dark gray, which is called tetracycline teeth. If the drinking water contains too much fluoride, it may also It causes dental fluorosis, which causes white chalk and brown plaques on the tooth surface. If the tooth nerve necrosis combines with the bacterial decomposition products, the teeth can also turn black.

2. Bleach whitening method is ineffective against tartar

Whitening method: The effect of whitening teeth is achieved through the interaction between hydrogen peroxide and teeth. 

This method is quick and affordable, but if your yellow-brown teeth are only caused by thick tartar covering the tooth surface, 

then even the most powerful Bleach cannot do anything about this. At this time, regular cleaning (scaling) and developing 

good living habits are the best ways to whiten your teeth.

Experts remind you: When it comes to teeth cleaning, you may be familiar with it, because every clinic and hospital has teeth cleaning business, but the results after cleaning vary greatly. Not all dentists are qualified to clean teeth. The doctor’s technique and technique determine the effect of scaling. This is why your own teeth sometimes don’t feel any particular discomfort after cleaning, but sometimes they feel unbearable soreness and tooth sensitivity that lasts for a long time. Therefore, you should first choose a doctor for teeth cleaning, and then choose a hospital. The teeth should feel refreshed after cleaning, the discomfort should disappear quickly, and there should be no persistent swelling and pain in the gums. In addition, after using the scaling method for exogenous coloration, you can also use whitening toothpaste to continue whitening, and you can get a satisfactory whitening effect.

3. Porcelain and veneers are not a one-time solution

For teeth with discolored dentin such as tetracycline teeth, macular teeth, and fluorosis teeth, ordinary bleaching methods 

need to be used within a certain level. Beyond a certain level, it is difficult to achieve a good whitening effect, and these 

methods are more expensive. It will cause some irritation to the teeth and is only suitable for some people.

The use of veneers to whiten is to stick a layer of porcelain or plastic veneers on the surface of the teeth to cover the discolored teeth. The cost of veneers for a tooth ranges from 100 to 200 yuan. It is whitened immediately after the veneers, and Nowadays, veneers come in more colors and have a more realistic appearance, making them very popular among consumers. But it is not something that can be cured once and for all as some people imagine. This is inseparable from the doctor's level and daily maintenance. If the treatment is well maintained, it can last for several years or even longer. If it is not well maintained, it will soon disappear. Worn out.

The method of porcelain crown is to combine the prepared porcelain teeth [porcelain teeth]

The full name of porcelain teeth is porcelain fused to metal crown, which is an ideal restoration. It is made by first making 

a metal base from an alloy, then covering its surface with low-melting porcelain powder similar to natural teeth, and sintering 

and fusing it in a vacuum high-temperature porcelain furnace. It has the strength of metal and the beauty of a porcelain crown. 

Its characteristics are that it can restore the shape and function of the tooth, has strong fracture resistance, realistic color and 

appearance, smooth surface, strong wear resistance without deformation, and stable color. A successful porcelain restoration 

should have a realistic shape and stable color. Acid and alkali resistant, it is a permanent restoration.