Kichik balilarning uxlighanda chishini ghuruchlitidighan ehwalni
dawalash uchun aldin bilen uning nime seweptin kilip chiqqanliqini
blish kirek. Mining bilidighinim, uxlighanda chishini
ghuruchlitidighan ehwal ucheyde medde qurut bolghanlighidin kilip
chiqqan digen qarash idi. Yiqinda men mushu toghursida soralghan
suallardin bir nechchini tapshurup aldim, we mushu toghursida bezi
matiryallarni izdep taptim. Kopunche matiryallarda bayan qilishiche,
uxlighanda chishini ghuruchlitidighan ehwalning nime seweptin kilip
chiqqanlighigha nisbeten her xil qarashlar mewjut bolup, iniq sewibi
tixi nemelum iken. Chunki nurghun kishiler ucheydiki medde qurutni
saqaytip dawalighan bolsimu, biraq balilarning uxlighanda chishini
ghuruchlitidighan ehwali saqaymighan. Bezi matiryallarda
eytilishiche uxlash aldidiki rohi keypiyatni tengshep, bek
jiddiliship ketmise bara bara yaxshi bolup kitidu diyilgen.
Paydilinishingiz uchun towendiki matiryalni qoshup qoydum.

Bruxism

This is an oral para-functional habit observed in a large number of
people occasionally and, in a smaller number, habitually. The
mechanism of causation is tension and spasm of the muscles used for
mastication. The term also refers to clenching of the teeth, which
causes similar problems.

Often, it occurs during sleep; even a short nap may induce it. In a
typical case, the canines and incisors are commonly moved against
each other laterally, i.e. with a side to side action. This erodes
tooth enamel, removing the sharp biting surfaces and flattening the
edges of the teeth. Sometimes, there is a tendency to grind the
molars together, which can be loud enough to wake a sleeping partner.
Over time, bruxing shortens and blunts the teeth being ground, and
may lead to pain in the joint of the jaw, the temporomandibular
joint, or headache. Teeth hollowed by previous decay (caries) may
collapse; the pressure exerted by bruxism on the teeth is
extraordinarily high.

The cause, or causes, of bruxism remains unclear. Some dentists
believe it is due to a lack of symmetry in the teeth; others, that
it reflects anxiety, digestive problems or a disturbed sleep
pattern. The most likely explanation is that the cause of bruxism
includes the simultaneous conditions of emotional stress and
occlusal disharmony (where teeth do not bite down on each other
correctly).

A recently introduced device called the BiteStrip enables at-home
overnight testing for Sleep Bruxism and might help diagnose bruxism
before damage appeared on the teeth. The device is a miniature
electromyograph machine that senses jaw muscle activity while the
patient sleeps. A dentist can establish the severity level, which
helps in choosing a treatment plan.

The effects of the condition may be quite advanced before sufferers
are aware they brux. Eroded teeth may be brought to the patient's
attention during a routine dental examination. If enough enamel is
eroded, the softer dentine will be exposed, and erosion will
accelerate. This opens the possibility of dental decay and tooth
fracture, and in some people, gum recession. Early intervention by a
dentist is advisable.

Some drugs are known to cause bruxism as a side-effect, e.g. MDMA
and others of the amphetamine-based family.

Treatment of bruxism

Unfortunately, there is no accepted cure as yet; mainly as there is
no accepted model of causation for the condition. Ongoing management
of bruxism is based on prevention of the abrasion of tooth surfaces
by the wearing of an acrylic dental guard, created to the shape of
the individual's upper teeth from a bite mould. This requires trips
to the dentist for measuring and fitting. Alongside this full width
guard, smaller and alternative shapes can be obtained, some with
proprietary names. It is worth noting that some clinicians advise
against the fitting of fitted guards as a long term treatment.
If a tense jaw is experienced during wakefulness, some sufferers
find it helpful to gently press their jaws open with fingertip
pressure, to relax the affected muscles much as one would treat a
leg cramp, but in this case, it is important to take care not to
overextend the jaw joint.

Though, presently, there is no cure available for bruxers, it may be
found beneficial to work at reducing stress and anxiety before
bedtime, by a winding-down activity such as massage, meditation or
reading, and eating early enough to ensure a fairly empty stomach at
bedtime may also help. Additionally, there is some evidence to
suggest that prolonged magnesium supplementation may alleviate
bruxism.

Damaged teeth can be repaired by replacing the worn natural crown of
the tooth with an artificial crown. Materials used to make crowns
vary; some are less prone to breaking than others, and can last
longer. Porcelain fused to metal crowns may be used in the anterior
(front) of the mouth, and in the posterior (back) gold is the
preferred material. To protect the new crowns, an occlusional guard
may be fabricated to wear at night.

http://en.wikipedia.org/wiki/Bruxism


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