User:Camilleadela/sandbox

Model #8

Normal occlusion is when mesial buccal cusp of the maxillary first molar occludes with the mesial buccal groove of the mandibular first molar. Max canine occludes with the distal half of the mand canine and the mesial half of the mandible first premolar.

A) Normal occlusion after orthodontic treatment. No dental malalignment present, such as crowding or spacing. B) Mesognathic profile

Model #7

Class II division I with overjet, open bite slight end to end on left side, mandibular asymmetrical growth and extremely narrow maxilla and mandible. Malocclusion, deviation from the normal relationship between the maxilla and mandible while in centric occlusion. Class 2 malocclusion, molar relationship involve mesial buccal cusps of the maxillary first molar occludes "by more than the width of a premolar". Mesial to the buccal groove of the mandibular first molar, canine relationship involves distal surface of the mandibular canine is distal to the mesial surface of the maxillary canine by at least the width of a premolar.

A) Maxillary anteriors protrude facial from mandibular anteriors, with deep overbite. B) Retrognathic profile with lip incompetence.

Citation:

1) Bowen, Denise M., et al. Darby and Walsh Dental Hygiene: Theory and Practice. Fifth ed., Elsevier