Researches show that this abnormal jaw movement can be observed by people that live in constant stress and with social problems.Not to mention the fact that the pain they feel is not only a simple cheek or a neck ache.
Although there are people suffering from bruxism that sleep very well.
Let’s see this other case:
When the upper and lower teeth do not touch properly we unconsciously try to even the surfice of our teeth. This way the left and right muscles would tighten evenly and all the teeth would get the same pressure. If the denture can not find comfortable position it tries to find it and this “searching” results in teeth grinding. Of course there are several people with uneven teeth that do not suffer from teeth grinding but if they have this clinching instinct it can be brought to the surfice any time. Probably everybody grinds their teeth sometimes but if it turns abnormal it can cause the disorder of the teeth and also sleeping problems.

Reflexes

Researchers of Adelaide University of Australia found out that by stimulating the mechano or pressure sensors, incentive and obstructive reflexes can be provoked in the masticatory muscles. These reflexes have a huge role in chewing. With the help of them the openness and closeness of jaws can be controlled. When we chew we do not have our mouth open otherwise the bite would fall out.

Then again we also feel if we chew on a piece of bone or nutshell and this time obstructive reflexes start to work.We suddenly slow down the jaw movement and our teeth stay undemaged. We know that by knocking the front teeth we involuntarily open our mouth, but less people know that by knocking the eye teeth or the grinders the clanching reflexes start to work. If there is a small and hard surficed object between the upper and lower teeth and thus only the front teeth touch, the clanching reflex relaxes.

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1. About Teeth Grinding

There are completely healthy and active people who are more tired when they wake up than when they went to bed. Weariness can be chased away by a hot shower or a strong coffee. But most of these people also complain about head, neck and shoulder ache, not to mention the numb spine and arms.What to do? People have no idea what their problem is espacially if the doctor can not find anything either. Let’s see the reasons of the sleeping and waking troubles.

With clenched teeth

Teeth grinding and clentching is called Bruxism. Most people can not even imatate what they regularly do at night with their jaws therefore this problem mostly remains hidden. You can grind your teeth only when you move your jaws while the teeth are pressed against one another. So we can talk about pressure with movement and without movement. This pressure can be kept up for 45 min. sometimes! 2 out of 10 people presses their teeth against one another with much more pressure then they would do it in the daytime. It was demonstrated in the 40’s that for chewing a bite of food our teeth touch only for 0,2 sec.! So clenching and grinding means a huge stress (and the only stress)for the teeth in our modern world.
The dentists of Goeteborg University examined 29 persons for five years and had a close look at their behaviour, social connections and anything that could be interesting in medical researches. Data showed without question that morning and dayly problems are in close connection with the abnormal jaw movements and teeth grinding. Moreover for those who grinded their teeth the signs of social and physical problems started to show. Most of them suffered from sleeping troubles and pains and 55% of them had these symptoms every day. 86% complained about regular neck and backache and nearly half of them woke up with headache and jaw pains.The connection between behaviour and syptoms are very clear so the question arises: Why do we do this tireing, tooth demageing action at night?

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1. Reasons of Teeth Grinding