Why do people need their wisdom teeth removed?

By: Dr. Rajat Sachdeva

• Thousands of years ago, a mutation thatsuppressed the formation of wisdom teeth and nowaccounts for the complications of wisdom teethamong modern humans.

• The dentition of modern humans has experiencedmany mutations, so there are general changes inboth the jaw and dentition to have become smaller.

• Many studies have shown that from about 35,000years ago until 10,000 years ago, tooth size hasdecreased on average by about one percent every2000 years.

•Over the last 70,000 years, many evidence shows that the

importance of large teeth and jaws was reduced as humans

developed.

•3.8million years ago, the fossil of early hominids showed that the

molar teeth are larger and the size of the mandible is tall- well over

twice the height of the molar roots inside it.

• However, our ancestors had four sets of three molars likemost of the mammals that help in chewing and grinding foodand both jaws are in U-shaped occlusal configuration.Apparently, they have sexually dimorphic changes also.

• The main causes for a decrease in evolutionary pressure tomaintain a large dentition appear to western diet, lifestyle,habits and technology and their development often caused anabrupt change in the way of human dentition had beenevolving

• From past few years, the jaw has shortened, the back molarsare often crowded in the jaw, with the result being impactedor misaligned.

• As we know, Wisdom teeth are also called third molars and itis usual for these teeth to become "stuck", wedged in orimpacted. There are many complications caused by wisdomtooth like pain, swelling, infection in the back of the mouth,decay, cyst formation, affected adjacent tooth.

• So, the small answer is that our teeth are too large, but that our jaws

are too small to fit them in. That’s why our wisdom tooth stuck in our

jaws bone.

•But many studies shows that that size of jaw depends on genetics and

environment; and it grows longer with heavy use, particularly during

childhood, because of the way bone responds to stress. Our teeth don’t

fit because they evolved instead to match the longer jaw that would

develop in a more challenging strain environment.

•Our jaws are too short because we don’t give them the hard work out

nature as we can have soft breads and mashed lentils on the one hand,

coarse millet and tough vegetables on the other. There are a number of

reasons to stuck with wisdom tooth.

•Even if you are not experiencing any problems with your

growing wisdom teeth right now, you may develop issues later.

Having these teeth removed can be a preventative measure that

saves you from experiencing painful side effects such as sinus,

ear, or jaw pain.

•Most will tell you that if the teeth do come, and there is plenty of

room in your mouth for them, then there’s no reason to perform an

extraction. You can still practice good oral hygiene with wisdom

teeth as long as there’s enough space in the mouth.

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