Molar is not useful in any way | Molar teeth grow at the age of 17 to 21 years
It is not correct that molar tooth will increase knowledge and people say so because, molar tooth grows in the teenage and by this time, thoughts of a person are in high standards. So the extra tooth is called molar tooth and it is derived from Latin word mill stone which means machine which breaks into small pieces. In most of the mammals, molar tooth is helpful in breaking down the food and so the teeth in the jaws are called as molar teeth. There are 12 different types of teeth in the jaws. The last formed teeth are the molar teeth. Generally the four teeth which grow at the age of 17 to 21 years are called as molar teeth. In few people, these teeth are formed late and it is very painful when the growth of the molar teeth faces any obstacle. Doctors say that there is no use with molar teeth. Scientists are telling that there is no need of these teeth for the humans as they are eating cooked food and they may not grow in the future.
you are talking about third molars or wisdom tooth.
it helps a lot if you happen to lose the first or second molar, in that case the third molar is used as an abutment for a bridge or even could be moved orthodontically to the place of the missing second molar.
nothing is useless in our body.