Wisdom teeth grow in the most extreme in the gum, i.e. the second molars (the typical "seven") and are called third molars or "eight". So far their arrangement causes a secondary role in grinding food. The primary set of teeth are necessary for chewing food is 28 teeth, so "eight" is considered "a luxury" and are called wisdom teeth.
Laid wisdom teeth when changing the last milk teeth at the root, i.e. approximately 13-15 years. However they are formed is quite long and begin to erupt only after 20 years. Such a long time their complete formation is determined by the physiological characteristics of the organism, because during the eruption of milk teeth children scratch their gums, bite the toy and thereby increase the blood flow and metabolic processes that help the teeth to emerge. And the third molars are so far away that when chewing food falls on the first and second molars, and the gum over the "eights" little is supplied and not "massaged" while chewing that prolongs the process of tooth formation.
Wisdom teeth tend to grow in stages. You can observe the discomfort in the gums, and sometimes pain for 1-2 weeks and then all signs of teeth growth subside for several weeks or even months. The growth of "eights" is influenced by hormonal surges in the body, for example, observed that during pregnancy, the growth of wisdom teeth much aktiviziruyutsya. Can provoke growth of latest teeth pronounced inflammatory processes in the body, which are accompanied by prolonged fever.
The monitoring of dentists third molars some people grow for decades, so if you have 20-22 years old there were signs of growth, "eights", this does not mean that soon you will have a 30-32 tooth. Wisdom teeth often have steam pattern in growth, ie if you got out of the upper third molar on the right, then soon expect the same tooth and on the left.
Is caused by the prolonged eruption of wisdom teeth and the fact that they often have the wrong location, i.e., can be laid at an angle with growth hitting a seven. Of course, the tooth is located in parallel with the gums, it is almost impossible to cut, so he gradually turned over. At this time, may take several years, i.e. - if you start to erupt, the tooth 21, the full formation of his visit will end around the age of 30.
Complicates the process of teething inflammation of the gums over the wisdom tooth. If you cut at least a small part of the tooth, forms a focus of infection, which includes fibre for food by germs and to clean the place hard to reach. When inflammation of the gums becomes spongy and often it formed "pockets" - more easily infected places. "Pockets" over the cutting of the wisdom tooth, the surgeon cuts, thus facilitating eruption of the tooth.
If 27-30 years you have never had symptoms of formation and eruption of third molars, then the chances of the emergence of these teeth after 30 years is negligible, because all the processes of formation in the body at this age subside, and the teeth are no exception.
Advice 2 : Why grow wisdom teeth
In both jaws of an adult is 32 teeth. The teeth of wisdom - the last in a row, they erupt later than the other. Thanks to this feature they got their name, although nothing to do with intelligence or wisdom are not. At the dental language they are called third molars.
The structure of the teeth of wisdom are no different from the rest: they have a root, neck and crown, covered with enamel. But they have a few unique features. First, they don't have milk predecessors; second, do not always erupt. Normally, they should grow in a person aged 17 to 30 years, but it may occur much later or not happen at all. Many millennia ago, the teeth of wisdom have taken a worthy place in the dentition of the jaw of the man, who was then a little more, as the ancestors of humans ate more tough foods and had a massive jaw. No problems with these teeth arose. But gradually, people switched to soft food, which were not thoroughly chewed. In addition, the brain increased, which influenced the structure of the skull and maxillo-facial apparatus. The third molars of steel ceased to participate in the act of chewing and become vestigial, while continuing to grow in the jaw, which was much less space for them. So with the teething of wisdom many people have problems. As they grow later, in the conditions of lack of space, and overcoming mechanical obstruction, the cause soreness. In addition, their growth is often accompanied by various complications, for example, the third molar may occupy a wrong position in the jaw and lie horizontally or inclined. Lower teeth when growth sometimes affect the nerves or ruin their neighbours, and grow towards the cheek or tongue, causing inflammation and pain. Lately, more and more cases of absence rudiments of teeth wisdomthat reaffirms the vestigial nature of the third molars. Although other people have the teeth grow without problems and are fully functional. Until now, scientists can't say why nature has preserved them. Dentists always also Express the opinion: if the tooth of wisdom causes problems, it is desirable to remove, but when the reasons for concern, and they participate in the process of mastication, there is no need to change anything. In addition, if earlier, upon the slightest complications of third molars pulled out unconditionally, but today, many dentists are inclined to think that they need to try to save, because they can be a good support for the prosthesis of the other teeth.