Malocclusion

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Malocclusion
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Synonyms	Bad bite
Pronounce	N/A
Specialty	N/A
Symptoms	Misalignment of teeth, difficulty in chewing, speech problems
Complications	Tooth decay, gum disease, temporomandibular joint disorder
Onset	Childhood
Duration	Long-term
Types	N/A
Causes	Genetics, thumb sucking, tongue thrusting, mouth breathing
Risks	Family history, poor oral habits
Diagnosis	Dental examination, X-ray
Differential diagnosis	Tooth wear, periodontal disease
Prevention	Early dental care, avoiding harmful oral habits
Treatment	Orthodontics, braces, surgery
Medication	N/A
Prognosis	Good with treatment
Frequency	Common
Deaths	N/A

File:Treat open bite.jpg

Treatment of Open Bite

Malocclusion refers to the misalignment or incorrect relation between the teeth of the two dental arches when they approach each other as the jaws close. The term was coined by Edward Angle, the "father of modern orthodontics," as a derivative of occlusion, which refers to the way opposing teeth meet (occlude). Malocclusion is a common dental condition.

Types of Malocclusion

There are three major types of malocclusion, classified by Edward Angle:

• Class I: The molar relationship of the occlusion is normal or as described for the maxillary first molar, but the other teeth have problems like spacing, crowding, over or under eruption, etc.
• Class II: In this situation, the molar relationships shows the buccal groove of the mandibular first molar is distally positioned when in occlusion with the mesiobuccal cusp of the maxillary first molar. Usually the mesiobuccal cusp rests in between the mandibular first molar and second premolar. This is also known as distocclusion.
• Class III: In this situation, the buccal groove of the mandibular first molar is mesially positioned to the mesiobuccal cusp of the maxillary first molar. This is also known as mesioclusion or prognathism.

Causes

Malocclusion can be a result of several factors, including:

• Genetics: Malocclusion often runs in families, suggesting a genetic basis for some types.
• Habits: Certain habits may lead to malocclusion, such as thumb sucking, tongue thrusting, prolonged use of a bottle, and use of a pacifier.
• Injury: An injury that results in misalignment of the jaw can cause malocclusion.
• Tumors: Tumors in the mouth or jaw can also cause malocclusion.

Treatment

Treatment for malocclusion generally involves orthodontic therapy. The most common treatment is the use of braces. Other treatments may include removal of teeth, surgery to reshape or shorten the jaw, or wires or plates to stabilize the jaw bone.

See also

• Orthodontics
• Dental braces
• Dental extraction
• Jaw surgery

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