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DEN 110 ORO

Occlusion

QuestionAnswer
relationship of the mandibular teeth to those of the maxillary when brought together occlusion
maximum contact of the teeth, habitual occlusion centric occlusion
Position of the mandible relative to the maxilla, determined by maximum contraction of the muscles of the jaw centric relation
lateral view, buccal cusp tips of posterior teeth conform to an even curve in an anterior to posterior direction curve of spee
posterior view, occlusal curve exits for posterior teeth in a right to left direction curve of wilson
all teeth in maxillary arch are in contact with teeth from mandibular arch, maxillary teeth slightly overlap mandibular teeth ideal occlusion
straight or flat profile mesognathic
maxilla is more prominent than mandible, mandible is posterior to normal relationship retrognathic
mandible is prominent and protruded prognathic
any deviation from normal occlusion malocclusion
posterior--teeth are either facial or lingual of their normal position crossbite
anterior-- max incisors are lingual to mand incisors crossbite
incisal surfaces of max teeth occlude with incisal surfaces of mand teeth edge to edge (anterior)
molars and premolars occlude cusp to cusp as viewed mesiodistally end to end (posterior)
lack of incisal or occlusal contact between opposing teeth openbite
represents the horizontal distance between opposing surfaces of incisors OVERjet
max teeth are lingual to mand teeth UNDERjet
when max teeth cover more than just incisal third of mand teeth overbite
tooth is labial to normal labioversion
tooth is lingual to normal linguoversion
tooth is buccal to normal buccoversion
supraeruption, tooth is elongated above the line of occlusion supraversion
tooth is below the line of occlusion infraversion
tooth is turned or rotated torsiversion
based upon the relationship of the permanent first molars, describes relationship of mandible to maxilla angle/dental classifications
what class: patient has mesognathic profile class 1 occlusion (ideal)
where does occlusion occur in posterior teeth for class 1 occlusion MB cusp of max 1 molar occluded with MB groove of mand 1 molar
where does occlusion occur in anterior teeth for class 1 occlusion max canine occluded with distal half of mand canine/mesial half of mand 1 premolar
exhibits malposition of individual or groups of teeth. examples- crowding, crossbites, etc. class 1 malocclusion
what class: patient has retrognathic profile class 2 malocclusion
MB groove of mand 1 molar is DISTAL to the MB cusp of max 1 molar, distal surface of mand canine is DISTAL to mesial surface of max canine class 2 malocclusion
division 1 of class 2 malocclusion all max incisors are protruded
division 2 of class 2 malocclusion one or more max incisors are retruded
what class: patient has prognathic profile class 3 malocclusion
MB groove of MD 1 molar is MESIAL to MB cusp of max 1 molar, distal surface of mand canine is MESIAL to the mesial surface of max canine class 3 malocclusion
what does occluded mean to close
Created by: odean9
 

 



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