Autumn quiz II: Occlusion

Question 1

what is the natural relationship between cusps and opposing teeth

Answer 1

cusp to marginal ridge (or tooth to two teeth)

-cusp to fossa is man made and we DONT adjust tooth to marginal ridge to get to that place

Question 2

what occurs/ to the condyles in anterior guidance: protrusion and lateral excurisons

Answer 2

protrusion to condyles: condyles travel downward and forward along articular eminence of temporal bone. minimize or avoid posteiror dental interference

protrusive/lateral: posterior teeth are separated, anterior teeth rub and guide mandible, CLEARANCE of posterior teeth

Question 3

what occurs to condyle with anterior guidance laterotrusion and lateroprotrusion

Answer 3

condyle travels downward, forward and medially along articular eminence of the temporal bone on the mediotrusive side.
minimize of avoid posterior dental interference
PREFERRED OCCLUSION

Question 4

whats the concept of group function in protrusion/MI?

Answer 4

protrusion: anterior teeth and some premolar teeth rub and guide the mandible, giving clearance for molar teeth

MI: simultaneous bilateral posterior stops, SLIGHT clearance of anterior teeth.

Question 5

whats the concept of group function in laterotrusion or lateroprotrusion

Answer 5

anterior teeth/some premolars rub and guide mandible giving clearance to molars. condyle travels down, forward and medailly along articular eminence of temp bone on mediotrusive side. minimize or avoid posterior dental interference.

Question 6

what is bilateral balanced occlusion; Protrusive and lateral excurisons?

Answer 6

protrusive and lateral: posterior teeth are not separated, anterior teeth and some posterior teeth on the laterotrusive and mediotrusive side rub

Question 7

MI in anterior guidance?

Answer 7

simultaneous bilateral posterior stops with slight clarance of anterior teeth

Question 8

whats the concept of group function in protrusive and lateral excursions?

Answer 8

posterior teeth are separated; anterior teeth and some posterior teeth on the laterotrusive side rub and guide mandible, providing clearance of posterior teeth.

Question 9

what is bilateral balanced occlusion MI?

Answer 9

simultaneous bilateral poserior stops in posteriors, slitght clearance of anterior teeth.

Question 10

whats the angle b/w medio and laterotrusion at second molar

Answer 10

130 degrees

Question 11

how does medio/laterotrusion angle compare on premolar

Answer 11

160 degrees at premolar

Question 12

whats the trend of medio/laterotrusion angle at third molra vs first premolar

Answer 12

as you move toward midline, angle between mediolateral gets wider and wider

Question 13

whats the angle of medio/laterotrusion at central incisor

Answer 13

almost 180 degrees