Class III- Mesiooclusion (underbite)

Mandibular teeth are anterior to normal position in relation to maxillary teeth Molar relation: The buccal groove of the mandibular 1st molar is mesial to the mesiobuccal cusp of the maxillary 1st molar by at least the width of a premolar Canine relation: The distal surface of the mandibular canine is mesial to the mesial surface of the maxillary canine by at least the width of a premolar