Static Occlusion

Question 1

the teeth have a what drift

Answer 1

mesial drift

Question 2

contact relationship has a risk of

Answer 2

caries and plaque build up
prevent overhangs

Question 3

each upper tooth contacts with what lower

Answer 3

same lower and distal neighbour eg 3 with 3 and 4

Question 4

ideal arch shape upper and lower

Answer 4

upper- big to 7 then smaller at 8
lower - bigger to the 8

Question 5

what arch is bigger and why

Answer 5

upper - upper 3-3 much bigger than lower 3-3
UPPER SITS OUTSIDE of lower

Question 6

first teeth to erupt

Answer 6

lower 1’s and 6’s

Question 7

factors effecting path of eruption

Answer 7

lips, togue, sucking thumb, clarinet

Question 8

curve called when making denture to be correct

Answer 8

curve of wilson

Question 9

angulation of upper/lower teeth

Answer 9

upper anterior- mesially
lower anterior -mesially
lower posterior - mesially
upper posterior - distally

Question 10

bilateral cross bite

Answer 10

one side
upper inside lower

Question 11

unilateral cross bite

Answer 11

both sides
upper inside lower

Question 12

what is angles classification

Answer 12

the upper and lower 6’s relationship
key to occlusion
can do with canine of no 6

Question 13

angles classification of molars
class I
class II
class III

Answer 13

class I- sits right mb cusp sits in the lower mb groove

class II-upper 6 too mesial for lower (perhaps upper 5 taken out)

class III- upper 6 too distal for lower(perhaps lower 5 taken out)

Question 14

overbite

Answer 14

upper tooth vertically covers (overlaps) the lower tooth

Question 15

overjet

Answer 15

horizon- horizontal
overlap horizontal

Question 16

sucking thumb leads to

Answer 16

overjet

Question 17

openbite

Answer 17

no contact but can be edge to edge

Question 18

reverse oj

Answer 18

lower infront of upper

Question 19

incisor relationship
class i
Class 2div 1
class 2 div 2
class iii

Answer 19

class i- ideal - edge to plateau

Class 2div 1- lower behind upper but proclined upper incisors (inc oj)

class 2 div 2- lower behind upper but upper retro incisors (ob)

class iii- lower infront upper but can be edge to edge