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Common Orthodontic Problems

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Class II problems represent an abnormal bite relationship in which the upper jaw and teeth are located in front of the lower jaw and teeth. Class II patients usually exhibit a convex facial profile with a recessed chin. In most cases, this relationship is due to inherent characteristics. A skeletal Class II problem occurs when the upper back molars are forward of the lower back molars…this gives the patient the appearance of a recessed lower jaw or an upper jaw that is protrusive (or both).

Class II

Class III problems are also primarily genetic in origin. In this instance, the lower jaw and teeth are positioned in front of the upper jaw and teeth. Facially, the appearance may give the impression that the lower jaw is excessively large, but in many cases the lack of upper jaw development is at fault. There are several treatment options to correct a Class III problem.

Class III

A posterior cross-bite will usually result from a narrow upper jaw or abnormally wide lower jaw. A narrow upper jaw will often force a patient to move their lower jaw forward or to the side, when closing into a stable bite. When closed into this accommodating position, the lower teeth are located outside the upper teeth. A posterior cross-bite can involve one side of the jaw, known as a unilateral cross-bite, or both sides of the jaw, known as a bilateral cross-bite.

Crossbite

Crowding of the teeth is probably the most common orthodontic problem. This problem typically stems from a discrepancy between space of the jaw and the size of the teeth. Oftentimes, crowding can be just one of several orthodontic problems. Crowding can be the cause of, or the result of other problems such as impacted teeth, retained teeth or teeth that do not naturally fall out. Cross-bite of the front or rear teeth can also cause the teeth to become crowded.

Crowding

Spaces between teeth are another common problem associated with the need for orthodontic care. Like crowding, spacing may be related to a tooth-to-jaw size disharmony. Spacing may occur between the front and the back teeth. Tooth size discrepancies, such as smaller teeth or abnormally-shaped teeth, can also create abnormal spaces between the teeth.

Spacing