Occlusion I

Question 1

Class I

Answer 1

Orthognatic profile
occuring 72 % of the time
considered ‘normal’

Question 2

Class II

Answer 2

Retrognathic profile
occurring 22% of the time
Distal occlusion
mandible is farther back

Question 3

Class III

Answer 3

Prognathic profile
mesial occlusion and see about 6 % of the time
there is an anterior crossbite
the mandible is farther forward

Question 4

what is occluding in a normal Class I occlusion

Answer 4

mesial buccal cusp of upper first opposes the MESIAL BUCCAL groove of the mandibular first molar

Question 5

crossbite

Answer 5

full arch - cross bute in anterior and posterior

Question 6

anterior crossbite

Answer 6

just anterior

posterior teeth are in ‘normal’ occlusion

Question 7

open bite

Answer 7

contact in the back, but there is no contact in anterior

- results in no wear on the incisal edges / memalons are still present

Question 8

edge to edge

Answer 8

posterior teeth do not contact eachother

Question 9

static occlusion

Answer 9

when you bite down and the points of occlusal contact are in centric occlusion
basically where there is contact

Question 10

static occlusion

Answer 10

when you bite down and the points of occlusal contact are in centric occlusion
basically where there is contact

Question 11

overbite

Answer 11

vertical overlap

Question 12

overjet

Answer 12

horizontal overlap