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Causes of Teeth Misalignment

Causes of Teeth Misalignment

Teeth misalignment is a state of teeth when they are not arranged properly. Teeth misalignment is also called malocclusion. Occlusion is a term referred to the alignment of teeth. Your teeth are expected to grow easily without any spacing and crowding issues in the mouth. Also, there shouldn’t be any twisted or rotated teeth. Your upper jaw teeth should also overlap the lower jaw teeth to some degree. It is so that your teeth’s point of molar should fit into the grooves of the opposite molar.

When an abnormality occurs in the occlusion, then it is called malocclusion. Malocclusion is known by other names such as crowded teeth, crossbite, overbite, underbite, and open bite. Upper teeth alignment helps to avoid biting lips and cheeks and lower teeth alignment protects the tongue. Misalignment can cause teeth to function improperly, which could lead to health problems. Malocclusions can lead to functional disorders in speech, chewing and swallowing.X-rays and dental examinations can help identify these teeth misalignment.

Most of the teeth misalignment are inherited problems. More than half of the people in the world have teeth misalignment; only some amount of people exist with properly aligned teeth. There are various reasons causing misalignment of teeth. There are also various oral habits which lead to teeth misalignment, especially of children.

Thumb Sucking

Thumb sucking is common in kids. But they should not get used to thumb sucking for a long time. As suggested by experts, a child should discontinue the habit after the age of three years. It has been identified long before that sucking of thumb can lead to dental occlusion and dental characteristics. Non-nutritive sucking has been found to be the cause of teeth misalignment. When permanent teeth are appearing, and the kid continues to suck the thumb, the thumb will put pressure on the gums, and it can cause teeth to grow abnormally. Thumb sucking is a harm done to aligned teeth.

Tongue Thrusting

Slipping the tongue between the upper and lower teeth touching anterior can cause teeth misalignment. The tongue can protrude through the anteriors during swallowing, speech or sleeping. There are kinds of tongue thrusting like open bite. Open bite happens when the mouth is closed, and front teeth don’t meet. As the structure of teeth in the mouth is aligned, and protruding tongue in between them can stop their natural aligning. There are various methods used to prevent the tongue from slipping in between the teeth.

Mouth Breathing

Mouth breathing is breathing from the mouth instead of the nose. A partly blocked airway causes mouth breathing. Mouth breathing is caused by allergies, or by enlarged adenoids or tonsils. Mouth breathing causes dry, red and swollen gums. The chronic mouth breaking in children can cause dental problems such as teeth misalignment. In children, it can cause crooked teeth or poor growth. In adults, it can cause bad breath, teeth misalignment and gum diseases.

Pacifier and Bottle

You should not let your child use a pacifier for more than three years of age. It leads to the habit that can get difficult to get rid of later. Pacifier also has a higher risk of developing teeth misalignment than thumb sucking. So is the condition with the milk bottle. The prolonged use of milk bottle can cause the child teeth misalignment or tooth decay.

Tumour in the Mouth

Tumour around the teeth or jaw can affect your alignment and the shape of your jaw. Tumour develops because of some swelling or growth in the gums or in the jaws, which can lead the teeth alignment to shift. Tumour in the mouth can cause you pain, lumps or sores.

Types of Teeth Misalignment

Let us now look at different types of misalignment.


Crossbite is a type of misalignment caused when a tooth is more in buccal or lingual side of the mouth. It does not meet its opposite tooth in the upper or lower side adequately. This is also termed as misalignment of the dental arches.


Overbite is the situation where your upper front teeth lap over lower front teeth. Overbite teeth can cause pain in the lower jaw. An overbite can cause various health issues like speech impediments, breathing problems, pain while chewing, etc. These health issues occur, relying on how severe is the overbite.


Underbite condition is the opposite of an overbite. In this condition, lower front teeth lap over the upper front teeth. Some cases of underbite can be severe, causing the lower front teeth to protrude far forward. An underbite is mostly unnoticeable, but don’t neglect, it can cause severe problems like speech impediments, difficulty in chewing and pain in the jaw.

The good news is that teeth misalignment can be treated. The treatment varies according to the problem. Methods like braces, bonding, teeth removal or surgery are ideal to solve this issue. It is best that you see your dentist to find which solution is ideal for your oral situation.


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