Dental Anatomy Miscellaneous Flashcards Preview

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Flashcards in Dental Anatomy Miscellaneous Deck (73)
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1

when the mandible moves from CO to edge-to-edge, the condyles move ___ and ___

forward and downward

2

what directions do non-working condyles move?

downward, forward, and medial

3

anterior guidance plays the greatest role in discluding the posterior teeth during what movement?

latero-protrusive

4

teeth are in contact in intercuspal position during what type of swallowing?

non-masticatory

5

tooth contact almost exclusively determines ___ position

intercuspal

6

centric relation is a ___-guided position

ligament

7

centric occlusion is a ___-guided position

tooth

8

in posselt's envelope of motion, maximum intercuspal position is the most ___ point

superior

9

what is another term for centric occlusion?

intercuspal position

10

when the mandible moves from centric occlusion to edge-to-edge, the condyles move ___ and ___

forward and downward

11

what is the bennett movement

-the side shift of the mandible
-the bodily shift of the mandible toward the working condyle

12

bennett occurs during which stage of lateral movement?

the earliest stage

13

physiological rest position is also known as ___

postural position

14

postural position is ___mm below ICP/CO

2-4mm

15

is postural/physiological position a border position?

no

16

the mandibular postural position is determined almost exclusively by ___

the behavior of the mandibular musculature

17

if you move from physiological/postural position from CO, what muscles are being used?

anterior fibers of the temporalis (elevates the mandible)

18

which curve (spee or wilson) is the anterior-posterior curvature of the occlusal surfaces as seen in a facial/buccal view?

spee

19

the usual overjet is ___mm

2-4

20

___ is horizontal overlap, whereas ___ is vertical overlap

overjet, overbite

21

the hardest dental tissue is ___

enamel

22

what is the main component of enamel?

inorganic matter (hydroxyapatite, NO collagen)

23

the direction of enamel rods in the cervical 3rd of permanent teeth is in a ___ direction, whereas it is in a ___ direction in deciduous teeth

-permanent = gingival direction
-primary = apical direction

24

___ is the result of normal enamel apposition seen on the surface of teeth, whereas ___ is seen on the inside

-perikymata
-striae of retzius

25

for multirooted teeth, dentin continues to form most rapidly at the ___ and ___ of the pulp chamber

floor and roof

26

caries stimulates the production of ___ dentin

tertiary

27

the percentage of dentin that is organic is ___%

20-30%

28

the PRIMARY function of the dental pulp is to ___

form dentin

29

the dental papilla forms ___ and ___

dentin and pulp (think dental papilla = DP = dentin pulp)

30

the dentin that is most highly mineralized is ___ or ___

intra or peritubular dentin