Mandibular Mesioclusion (underbite)

Mandibular mesioclusion is a skeletal abnormality in which the lower jaw is abnormally in front of the upper jaw. This condition is common in breeds with brachycephalic skulls such as Pugs, English Bulldogs and Persian cats. At times, the upper incisors abnormally penetrate the lower gum tissues. Treatment involves making the dog or cat comfortable either by removing the teeth penetrating the lower jaw or reducing the crown height and restoring the crowns so as not to penetrate the lower jaw.

Mandibular mesioclusion

Maxillary incisors impending on mandibular gingival

Crown reduction of the maxillary incisors to prevent mandibular gingival penetration

Feline mandibular mesioclusion

Feline mandibular mesioclusion

Crown reduction and restoration

Crown reduction and restoration

Mandibular canine crown reduction and restoration to allow functional bite