What is a class 2 malocclusion?

Class 2 malocclusion, also known as retrognathia, is a dental condition characterized by an abnormal relationship between the upper and lower jaw, where the upper jaw (maxilla) protrudes too far forward compared to the lower jaw (mandible). It results in an overjet, where the upper front teeth extend excessively over the lower front teeth. This misalignment not only creates aesthetic concerns but can also interfere with oral function.

Key characteristics of Class 2 malocclusion include:

Overjet: Increased horizontal overlap of the upper front teeth over the lower front teeth.

Retrognathic Mandible: The lower jaw is set back compared to the upper jaw, giving the appearance of a receded chin.

Deep Bite: The upper front teeth overlap the lower front teeth vertically to a greater extent than normal.

Molar Relationship: In the most common type of Class 2 malocclusion, the upper first molar is positioned directly above the lower second molar.

Facial Profile: Individuals with Class 2 malocclusion often have a straight or convex facial profile with a less prominent chin.

Causes of Class 2 malocclusion can vary, but genetics, growth patterns, early loss of primary teeth, or environmental factors during development may contribute to its occurrence.

The correction of Class 2 malocclusion typically involves orthodontic treatment, such as braces, expanders, or other appliances, to gradually reposition the teeth and jaws into more balanced and proportionate positions. In some cases, early intervention may be necessary to guide proper jaw development and prevent further progression of the condition.

Treatment of Class 2 malocclusion aims to:

Improve the alignment of the jaws and teeth

Enhance facial aesthetics and symmetry

Optimize oral function, including chewing and speaking

Reduce the risk of future dental issues and jaw joint problems

Early diagnosis and management of Class 2 malocclusion are crucial to achieve successful outcomes and ensure long-term oral health and function. Dental professionals play a vital role in early detection, assessment, and the development of personalized treatment plans for individuals with Class 2 malocclusion.