What are the causes of black spots on teeth? Do black spots on the biting surface of teeth mean that there are cavities?

As the saying goes, toothache is not a disease, but it can kill you. Toothache usually has signs, such as loose or cracked teeth, or worm holes or black marks on the teeth. At this time, you should pay more attention. So what are the reasons for black spots on teeth?

What causes black spots on teeth?

1. Caries.

Everyone knows that tooth decay can cause teeth to turn black. Tooth decay is a chronic bacterial infection. There are a large number of bacteria in our mouths. When oral hygiene is not done properly, the oral flora is dominant, and the tooth body is eroded by bacteria, which will cause the color of the tooth body to change. If you have tooth decay, you should seek medical attention and perform filling surgery in time. Otherwise, if the pulp is affected, you will need to undergo more complicated root canal treatment.

2. Pigmentation.

Clinically, it is more common in children. It usually manifests as black spots distributed along the neck of the teeth. Children cannot do a comprehensive oral hygiene due to their special characteristics. Parents usually do not pay enough attention to whether their children brush their teeth cleanly, which gives the pigments in food the opportunity to adhere to the teeth.

3. Smoke stains and tea stains.

People who are addicted to smoking and drinking tea will often have smoke stains and tea stains on their teeth, which can be removed by teeth cleaning.

Black spots on the biting surface of teeth mean that there are cavities?

The part of the teeth most prone to black spots is the occlusal surface of the teeth, which is the contact surface between the crown and food when chewing. Because the occlusal surface of the premolars and molars is not smooth, the contact area between the teeth is increased, which increases the chewing efficiency. At the same time, the contact area with food is increased, which is prone to problems. If there are black spots on the crown surface, it should be a sign that the teeth are starting to deteriorate, and the most likely cause is caries.

When bacteria infect and food residues are present in the mouth for a long time, it is easy to corrode the occlusal surface of the crown. Over time, black spots will appear on the surface of the crown. In severe cases, it will cause block-like black changes in the crown. When the tooth body is eroded by bacteria and the color of the tooth body changes, although toothache symptoms will not appear, you should go to the doctor at this time. In this case, the tooth can be filled. After regular filling treatment, you can prevent the end of the tooth being gone, and the black spots will be eliminated by filling the tooth. If caries causes the crown to turn black and progressively aggravates the damage to the pulp, causing unbearable pain, you must consider killing the nerves and performing root canal treatment. At this time, the tooth can no longer be saved.

In addition, if children in their growing years have black spots on their teeth, it may be caused by local pigmentation, usually black spots distributed along the neck of the teeth. It is related to long-term lack of teeth brushing or unscientific brushing methods. Parents need to guide their children to brush their teeth regularly to maintain oral health.

What is the color of normal teeth?

Teeth are mainly composed of enamel, dentin and cementum. Normal teeth are white with a hint of yellow. Many patients come to have their teeth cleaned to whiten their teeth, but teeth cleaning is to clean tartar and soft plaque, and cannot whiten teeth. Why do normal teeth have a hint of yellow? Because normal dentin itself is light yellow.