Classification of Face
 

It is not sufficient to categorize orthodontic malocclusions on the basis of a classification of the teeth alone. The relationship with other craniofacial structures must also be taken into consideration.

Class 1:

Maxillary-Mandibular Dental Protrusion — teeth:

Maxillary-Mandibular Dental Retrusion — teeth:

This is an example of a dental malocclusion that may require the removal of teeth for correction.

This is an example of a dental malocclusion that may be treated with expansion rather than removing teeth.

Class 2:

Maxillary Dental Protrusion — teeth:

Mandibular Retrognathism — jaws:

This malocclusion may require the removal of teeth.

The lower jawbone has not grown as much as the upper jaw. This example of a Class II malocclusion demonstrates the possible need for early growth guidance.

Maxillary Dental Protrusion - teeth
& Mandibular Retrognathism - jaws

These Class malocclusions are more difficult to treat due to the skeletal disharmony and may require orthognathic surgery in conjunction with orthodontic treatment.

Class 3:

Mandibular Dental Protrusion — teeth:

Mandibular Prognathism — jaws:

The lower teeth are too far in front of the upper teeth. This malocclusion is treated with orthodontic procedures which may require the extraction of teeth due to the dental protrusion

The lower jaw bone has outgrown the upper jaw. This malocclusion is more difficult to treat due to the skeletal disharmony and may require orthognathic surgery in conjunction with orthodontic treatment.


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