Darkening around teeth

A mouthful of white teeth can often leave a good impression on people, so brushing and cleaning teeth is something you need to do on a regular basis. However, teeth can easily develop problems due to some diseases, a typical example being blackening around the teeth. This has nothing to do with usual teeth cleaning measures. The most likely possibility is that there is a problem with dental health, so it is important to understand the cause. Let’s take a look at the common causes of dark spots around teeth.

Dental fluorosis: It is mainly caused by excessive fluoride content in drinking water. In mild cases, the enamel on the tooth surface is turbid, opaque and chalky; in moderate cases, irregular yellow or brownish-yellow patches appear on the tooth surface; in severe cases, in addition to color changes, there are also enamel defects on the tooth surface.

Tetracycline teeth: During the period of tooth development, especially for children under 8 years old or pregnant women, if tetracycline drugs (such as tetracycline, oxytetracycline, doxycycline, etc.) are taken, it is easy to cause tooth discoloration, which is called tetracycline stained teeth. This is because tetracycline drugs can combine with calcium ions in tooth tissue to form stable tetracycline calcium salts. The discoloration will gradually worsen with age and tend to stabilize after about 18 years of age.

Pigment deposition: Some colored foods include tea, coffee, soy sauce and cigarettes. Over time, due to the lack of good habits of cleaning teeth, these pigments will gradually deposit and even penetrate deep into the teeth, causing the surface of the teeth to begin to turn yellow and black. This is just like white clothes that have been stained for a long time and cannot be restored to their original whiteness no matter how you wash them. In the same way, general teeth cleaning methods make it difficult to restore stained teeth to their original whiteness.

Enamel hypoplasia: During the development of teeth, the surface enamel lacks calcium, phosphorus, vitamins A and D, or is affected by harmful factors, resulting in tooth development disorders. In mild cases, the enamel on the tooth surface is opaque chalky, loose and rough, and may turn yellowish brown due to food staining. In severe cases, there may be substantial defects in the tooth enamel, which may appear as pit-shaped or band-shaped defects, or even no enamel coverage.

Caries: commonly known as tooth decay or tooth decay, is caused by the fermentation of sugar foods with the participation of bacteria to produce acid and corrode the tooth body. Over time, it causes the teeth to soften, the tooth tissue to disintegrate, and black cavities to form.

Dead pulp teeth: They are mostly caused by bacterial infection from deep caries or direct violent blows, which cause the teeth to break accidentally, resulting in pulp damage, necrosis and discoloration.