Why are my teeth discolored? The dentist tells you the cause of discoloration and how to whiten your teeth!

You can find all kinds of whitening information in roadside advertisements and on the Internet. With so many types of teeth whitening, which one is right for me?

Preparation before teeth whitening
Before teeth whitening, you must first check with your dentist to understand the cause of tooth discoloration, and then you can choose a suitable whitening method for treatment. For different whitening methods, sometimes it is necessary to deal with oral problems first, such as: untreated tooth decay, loose or missing fillings, periodontal disease… etc.

Causes of tooth discoloration
Before we want to know how to whiten teeth, we need to understand what causes the teeth to turn yellow and black:

◎Food dyeing (such as drinking tea, coffee, cola, red wine, curry)

◎Smoking, eating betel nut

◎Long-term use of mouthwash containing chlorhexidine

◎As you age, your teeth turn yellow

◎Congenital or acquired diseases cause tooth dysplasia or discoloration

◎During tooth development, use drugs to a certain amount, causing tooth discoloration: such as tetracycline

◎Tooth trauma, tooth decay or pulp necrosis

◎Some metal fillings, cylinders, dentures

Types of teeth whitening
◎Sand blasting and whitening

Sandblasting is to restore the color of teeth in a “physical” way. Using sodium bicarbonate and the powerful gas and water column of the dental sandblasting machine, the stained plaque and dirt covering the outer surface of the teeth are removed, and the existing tooth color is restored, but the tooth background cannot be whitened. Sandblasting and whitening can remove “outer surface stains” of teeth, such as smoke stains, betel nut stains, coffee stains, tea stains, etc. However, the internal staining cannot be removed by sandblasting and whitening. It needs to be improved with other methods of whitening teeth.

◎Cold light/laser whitening

Cold light whitening or laser whitening is a “chemical” method to restore tooth color. Using a higher concentration of whitening agents, under the operation of the doctor in the clinic, the whitening agent can produce a catalytic reaction through the light source, which can achieve the effect of teeth whitening in a short time. Commonly used light sources are cold light or laser.

◎Home whitening

As the name suggests, it allows patients to take home trays and whitening agents. After the doctor’s guidance, they can easily complete the teeth whitening treatment at home. Home whitening also uses “chemical” methods to whiten teeth. First, the doctor makes an impression in the clinic to make a customized dental tray, so that it is closely attached to the surface of the tooth, so that the whitening agent is more adhered to the surface of the tooth, so that the agent has a better whitening effect. The patient puts the whitening agent on the tooth tray at home, and then wears it by himself.

Home whitening uses a relatively low concentration of cold light/laser whitening agents, which has a low chance and degree of side effects of tooth sensitivity, but it takes a relatively long time to achieve the desired effect. The whitening tray needs to be worn for about 6-8 hours a day and lasts for about 4 weeks.

◎All-ceramic patch/all-ceramic crown (braces)

All-ceramic patches/all-ceramic crowns belong to the “covering” whitening method, which belongs to the category of dentures. To make this type of denture, it is necessary to “grind a layer off the surface of the tooth”, and then apply an all-ceramic patch or all-ceramic crown with a high-strength adhesive to adhere it to the surface of the tooth. This method can improve tooth shape and color at the same time.

Advantages of teeth whitening
Once teeth are white, people will look younger, healthier, and more confident. After sandblasting and whitening remove the smoke and betel nut scale on the surface of the teeth, it can also improve the bad odor caused by these dirt. Patients who used to have the habit of chewing betel nuts every day, after teeth whitening, in addition to becoming more confident than before, they are also more willing to smile and quickly give up the bad habit of chewing betel nuts. After the teeth whitening treatment, if you can match with better cleaning habits and regular visits, it can also effectively remove dental plaque and prevent gum inflammation, tooth decay, gum atrophy, periodontal disease… and other diseases.

Precautions for teeth whitening
◎Tooth sensitivity: For patients who use “chemical methods” to whiten their teeth (such as cold light/laser whitening or home whitening), they may have tooth acid or sensitivity to cold and heat after the operation. Tooth sensitivity caused by correct operation is temporary and can be restored after a few days of rest. For patients with particularly sensitive teeth, you can start using desensitization toothpaste one or two weeks before whitening, and continue to use desensitization toothpaste during the whitening period, which can better prevent and improve the problem of tooth sensitivity.

◎Reduce the consumption of dark foods and maintain good oral cleanliness: Teeth whitening is not done once and for all, and the color of the teeth will recover a little after a period of time. Reduce the consumption of dark foods, clean your teeth after three meals, and check back regularly to maintain the whitening effect of your teeth for a long time.


Post time: Aug-05-2021