Lec 2 Dentition

Question 1

centric occlusion may or may not coincide with the maximal intercuspal position

Answer 1

maximal intercuspal position

Question 2

Guided occlusal relationship occuring at the most retruded position of the condyles in the joint cavities. A position that may be more retruded then the centric relation position.

Answer 2

retruded contact position

Question 3

retruded contact position is the most blank contact of occluding teeth

Answer 3

posterior

Question 4

x ray film on one side of the face the source on the other

Answer 4

cephalometric

Question 5

x ray source to the midline of face measurement

Answer 5

60 inches

Question 6

distance of midline of face to the x ray film plane measurement… this is variable though with different machines

Answer 6

15 inches

Question 7

classes of occlusion are based on blank

Answer 7

first molar

Question 8

excessive overbite is class blank

Answer 8

2

Question 9

underbite is class blank

Answer 9

3

Question 10

normal is class blank

Answer 10

1

Question 11

midpoint of the upper contour of the external auditory meatus

Answer 11

porion

Question 12

lowest point of the inferior margin of the orbit

Answer 12

orbitale

Question 13

midpoint of the cavity of the sella turcica

Answer 13

sella

Question 14

most anterior point of the contour of the chin

Answer 14

pogonion

Question 15

most inferior point on the mandibular symphysis

Answer 15

menton

Question 16

center of the inferior contour of the chin

Answer 16

gnathion

Question 17

center of the inferior contour ofthe mandibular angle

Answer 17

gonion

Question 18

anterior point of the intersection of the frontal and nasal bone

Answer 18

nasion

Question 19

plane involving the porion and orbitale

Answer 19

frankfort horizontal plane

Question 20

line bisecting the overlapping cusps of the first molars and incisors

Answer 20

occlusal plane

Question 21

mean angle of the frankfort-occlusal plane

Answer 21

9.3 degrees

Question 22

nasion and pogonion create this plane

Answer 22

facial plane

Question 23

frankfort facial mean angle

Answer 23

87.7

Question 24

frankfort facial angle indicates the degree of blank or blank of the mandible

Answer 24

retrusion, protrusion

Question 25

angle greater than 87.7 means blank

Answer 25

protrusion

Question 26

angle less than 87.7 means blank

Answer 26

retrusion

Question 27

plane established by orbitale and terminal hinge axis

Answer 27

axis orbital plane

Question 28

imaginary line around which the mandible may rotate within the sagittal plane

Answer 28

transverse horizontal axis (hinge axis)

Question 29

plane formed by gonion and menton

Answer 29

mandibular

Question 30

frankfort mandibular angle mean

Answer 30

21.9 degrees

Question 31

angle between line formed by sella and gnathion and the frankfort plane indicates the position of the chin

Answer 31

growth axis (y axis)

Question 32

inter incisor angle mean

Answer 32

135 degrees

Question 33

in inter incisor angle, the angle between occlusal plane and maxillary central is

Answer 33

60 degrees

Question 34

in inter incisor angle, the angle between occlusal plane and mandibular central is

Answer 34

75 degrees

Question 35

position that has equilibrium of inside (tongue) and outside (lips/cheeks) forces on tongue

Answer 35

neutral position

Question 36

class 1 occlusion

Answer 36

ML maxillary, central groove mandibular

Question 37

memorize all class 1 occlusion

Answer 37

ok

Question 38

class 2 occlusion

Answer 38

MB cusp of maxillary 1st molar located more anterior to buccal groove of mandibular 1st molar

Question 39

class 2 occlusion division 1 has central incisors slanting blank

Answer 39

outward

Question 40

class 2 occlusion division 2 has central incisors slanting blank

Answer 40

inward

Question 41

class 3 occlusion

Answer 41

MB cusp of maxillary 1st molar located more posterior to buccal groove of mandibular 1st molar