Misc.

Question 1

when the mandible moves from CO to edge to edge it moves…?

Answer 1

forward and downward

Question 2

where does the non-working condyle move?

Answer 2

downward, forward, and medial

Question 3

during NON masticatory swallowing, where are the teeth?

Answer 3

IN CONTACT in intercuspal position

Question 4

what exclusively determines intercuspal position?

Answer 4

tooth contact

Question 5

centric relation is a ____ guided position and centric occlusion is a ____ guided posiition

Answer 5

• ligament

- tooth

Question 6

in the envelope, what is the most superior point?

Answer 6

MI

Question 7

the side shift of the mandible

Answer 7

bennett movement

Question 8

when does bennett movement occur?

Answer 8

earliest stage of lateral movement

Question 9

the bennett movement is the side shift of the mandible towards which condyle

Answer 9

the working condyle

Question 10

another name for physiologic rest position?

Answer 10

postural position

Question 11

what position is not located on the border of the envelope?

Answer 11

postural position/ physiologic rest position

Question 12

what is postural position determined by?

Answer 12

the muscles

Question 13

what fibers will you be using if you are to move from postural position to CO?

Answer 13

anterior fibers of the temporalis

Question 14

what is the usual overjet?

Answer 14

2-4mm

Question 15

horizontal overlap

Answer 15

overjet (think of a jet on the horizon)

Question 16

vertical overlap

Answer 16

overbite

Question 17

what is the main component of enamel?

Answer 17

inorganic matter (NOT collagen)

Question 18

what is the direction of enamel rods in permanent teeth in the cervical third?

Answer 18

gingival direction

Question 19

are a result of normal enemel apposition OUTSIDE tooth

Answer 19

perikymata

Question 20

where are the striae of retzius?

Answer 20

inside the tooth

Question 21

where does dentin form most rapidly for MULTIROOTED teeth

Answer 21

floor and roof of the pulp chamber

Question 22

what percentage of dentin is organic

Answer 22

20-30%

Question 23

what is the primary purpose of the pulp?

Answer 23

form dentin

Question 24

what forms dentin?

Answer 24

dental papilla and the pulp

think DP dentin pulp

Question 25

what type of dentin is mostly highly mineralized?

Answer 25

INTRA or peritubular dentin

Question 26

where is the DEJ?

Answer 26

occurs at the junction of the dental papilla and the inner enamel epithelium

Question 27

softest dental tissue?

Answer 27

cementum

Question 28

where is the acellular cementum?

Answer 28

coronal 2/3

Question 29

where is the cellular cementum?

Answer 29

apical 1/3 | think that all of the cells are down where the blood supply is

Question 30

when viewed from the occlusal arrangement, the teeth appear to be in a ____ shape

Answer 30

parabolic

Question 31

when viewed from the occlusal, the 4 posterior teeth in the mandibular arch are aligned in a ______

Answer 31

straight line

Question 32

most posterior teeth develope from how many lobes?

Answer 32

4 (equals the number of cusps)

Question 33

what are the two exceptions of posterior teeth forming from not 4 lobes?

Answer 33

- permanent first molars (max AND mandib) - mandibular second premolars (only three cusp type) *all form from five lobes

Question 34

do all teeth have distal and mesial marginal ridges?

Answer 34

yes

Question 35

what separate cusp ridges from marginal ridges

Answer 35

developmental grooves

Question 36

what does a transverse ridge result from?

Answer 36

the union of the facial and lingual triangular ridges

Question 37

how many teeth in the permanenet dentition normally have cingula?

Answer 37

12 (6 upper and 6 lower) *ALL anterior teeth

Question 38

how much of the total facio-lingual dimension does the occlusal table make up of a POSTERIOR tooth?

Answer 38

55-65%

Question 39

is the junctional epi in the periodontium?

Answer 39

yes

Question 40

how wide is the PDL

Answer 40

0.2mm

Question 41

how wide is the PDL in old age?

Answer 41

decreases to 0.1mm due to deposition of cementum and bone

Question 42

PDL fibers attach what to what?

Answer 42

tooth to bone

Question 43

gingival fibers attach what to what?

Answer 43

tooth to gingiva

Question 44

what is the predominant connective tissue for PDL fibers?

Answer 44

TYPE ONE collagen

Question 45

PDL fibers that provide the major support for a tooth during function

Answer 45

oblique fibers

Question 46

which fibers reduce the likelihood of forceful impaction into the alveolus?

Answer 46

oblique fibers

Question 47

which group of fibers are the most likely to be found in the middle 1/3 of the root?

Answer 47

oblique fibers

Question 48

are transeptal fibers PDL fibers or gingival fibers?

Answer 48

gingival

Question 49

fibers that extend from tooth to tooth

Answer 49

transeptal fibers

Question 50

approximately how much of PERMANENT root formation is completed at the time the tooth erupts

Answer 50

50%

Question 51

when is the apex of a tooth fully formed?

Answer 51

2-3 years after the tooth erupts in the mouth

Question 52

all teeth have FACIAL heights of contour in the cervical third except for what teeth?

Answer 52

mandibular molars

Question 53

anterior teeth have LINGUAL height of contour in the ____ third

Answer 53

cervical

Question 54

most posterior teeth have heights of contour in the ____ third

Answer 54

middle

Question 55

what is the exception to all posterior teeth having their heights of contour in the middle third?

Answer 55

mandibular second PM *occlusal third

Question 56

excess of calcified tissue (cementum) formation at the root apex

Answer 56

hypercementosis

Question 57

where are supernumerary teeth found in the maxilla?

Answer 57

between centrals or as 4th molars

Question 58

when cementum of two teeth join together

Answer 58

concrescence

Question 59

developmental abnormality characterized by the presence of fewer teeth than usual

Answer 59

oligodontia

Question 60

condition of missing all teeth

Answer 60

anodontia