Ans:
Wisdom teeth are the eighth teeth that erupt after the age of 16 or have not yet erupted. Due to the fact that the jawbone has become smaller during the evolutionary process of human beings, there is not enough space in the jawbone for the wisdom teeth to erupt, which often results in the abnormal position and direction of the wisdom teeth after eruption. Wisdom teeth not only have no chewing function, and there are a series of hazards or potential hazards.
First, due to incomplete eruption, the gums cover the back side of the tooth, and part of the crown forms a peri-coronal pocket that accumulates food and bacteria, which can cause frequent inflammation of the local soft tissues and pain, and even lead to limited opening of the mouth and difficulty in eating.
Second, most of the wisdom teeth anteriorly inclined obstruction, that is, about 45 degrees on top of the second molar, the two crowns form an angle embedded food, time the second molar formation of caries until pulpitis and severe pain. Another consequence is that the anterior wisdom teeth continue to exert force on the second molar so that the formation of periodontitis and pain and loosening, have to remove the second molar, or must be extracted from these two teeth, so that chewing function will be seriously impaired.
Thirdly, some wisdom teeth, although the direction of eruption is generally normal, but the contact point with the second molar is not normal, so that often embedded food, and brushing is not easy to brush to the gap, and very easy to cause the second molar caries and shorten the life of the caries.
According to statistics, 50% of people have wisdom teeth, which erupt one after another around the age of 16. Because the roots of wisdom teeth are not yet fully formed, they are easy to remove and avoid damage to the second molar, which is the best time to remove wisdom teeth. (Cui Lei, Jinan Stomatological Hospital)