Wedge defects are easily overlooked by Chinese people due to the hidden location of occurrence, occur in the neck of the tooth, usually insensitive, and once sensitive or painful teeth break the probability is very large.
Some friends often have toothache, cold teeth are sour, always think that it is caused by fire and tooth decay, but they do not know that it may also be the disaster caused by "wedge defects".

What is a wedge defect?
A wedge-shaped defect is a defect caused by a slow depletion of hard tissue in the neck on the lips and cheeks of the teeth, hence the name because it is often wedge-shaped.
What causes wedge defects?
First, the incorrect way of brushing teeth
Long-term lateral brushing or with a strong toothbrush, brushing too hard can lead to wear out of the neck. Clinically, the wedge-like defect in the neck of the tooth is more located in the middle of the upper and lower jaws, and the teeth are the third and fourth teeth respectively, which are at the corners of the dentition, so the force received when brushing teeth is also the greatest.
Second, the neck tissue of the tooth is weak
Teeth also have weak parts, that is, the neck of the teeth, where the enamel coverage is the least, so the gums are also prone to inflammation or atrophy leading to tooth exposure, so the wear resistance is the worst.
Third, the extrusion effect
When brushing teeth, the cheek muscles have a squeezing effect on the toothbrush, which makes the toothbrush more frictional to the teeth, exacerbating the wear and tear of the protruding part of the neck of the tooth by the horizontal brushing method.
Fourth, the role of acid
Acids in the gum groove fluid are associated with wedge defects, which explains the cause of defects at the root of the gingival margin. Patients with gastritis and those who often regurgitate their teeth are also prone to wedge defects.
Fifth, the role of bacteria
Some people believe that acid-producing bacteria form a large amount of acid in the plaque of the tooth neck, resulting in tooth demination, and the tooth tissue with reduced strength is prone to wedge-like defects under the action of external forces.
How should wedge defects be treated?
In milder cases, local treatment is not required for those with fewer symptom defects and no soreness symptoms. However, avoid brushing laterally and use a softer toothbrush and toothpaste with a thinner abrasive.
Those with heavier defects can choose to make up for the wedge defects with composite resins similar to the tooth color and certain adhesion to a certain adhesion to prevent further development.
Patients with pulpitis and apical inflammation caused by severe defects should be treated in time to reduce the pain caused by tooth disease and tooth loss.
Can wedge defects be prevented?
Choosing the right toothbrush and brushing your teeth correctly is indispensable to prevent wedge defects. The bristles of the toothbrush should not be too hard, and the vertical brush method of moving up and down should be used to avoid the use of the saw-type horizontal brush method.
When you feel symptoms such as tooth discomfort and soreness, the problem is already quite serious. We can do the next self-examination: look in the mirror and see if there are any small defects in the neck of the tooth. If the defect has already formed, it is necessary to go to the hospital for repair treatment as soon as possible to avoid more serious disease caused by delay.
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