Underbite

Underbite is a type of malocclusion or misalignment of the teeth, where the lower teeth protrude in front of the upper teeth when the mouth is closed. This condition is also known as Class III malocclusion or prognathism.

Causes

Underbite can be caused by various factors, including genetics, habits during early childhood such as thumb sucking and prolonged use of a pacifier, and abnormalities in the jawbone.

Symptoms

The most noticeable symptom of underbite is the protrusion of the lower jaw. Other symptoms may include difficulty in chewing and biting, speech problems, and changes in facial appearance.

Diagnosis

Underbite is usually diagnosed through a dental examination. The dentist may take X-rays to assess the severity of the condition and to plan the treatment.

Treatment

The treatment for underbite depends on the severity of the condition. Mild cases can be treated with dental appliances such as braces and retainers. Severe cases may require orthognathic surgery.

Complications

If left untreated, underbite can lead to various complications, including tooth decay, gum disease, temporomandibular joint disorder, and difficulties in speaking and eating.

Prevention

While underbite cannot be completely prevented as it is often caused by genetics, certain measures can be taken to reduce the risk. These include avoiding thumb sucking and prolonged use of a pacifier during early childhood.

See also

• Overbite
• Crossbite
• Orthodontics

Underbite Resources
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