Skeletal Occlusion Abnormalities


Skull Types


Mandibular Distoclusion

Mandibular distoclusion occurs when the mandible is caudal to its normal relationship with the maxilla.

Canine

 

Feline


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Mandibular Mesiocclusion

Mandibular mesiocclusion occurs when the maxillary incisors occlude caudal to the mandibular incisors.

Canine

 

Feline

 

Canine

 

Mandibular gingival ulceration from maxillary incisors


Other Skeletal Occlusion Abnormalities

Canine level bite

 

Canine open bite

 

Canine caudal crossbite


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Wry Bite (MAL/WRY)

Wry bite is a condition where one or more of the jaw quadrants are out of proportion to the other three, causing a deviation from the midline.

Mature canine

 

Immature canine


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Normal Canine Position

Canine

 

Canine

 

Feline


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Genetic Conditions

Some orthodontic abnormalities are genetic. Others are not. Normally the mandibular canine should be positioned perfectly between the maxillary third incisor and canine.

Normal cheek teeth position

Normal interdigitation of check teeth

 

Excessive freeway space – genetic defect

 

Abnormal interdigitation genetic malocclusion and posterior crossbite


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