Exam 2

Question 1

what causes pre odontoblasts to line up align basal lamina?

Answer 1

fibronectin

Question 2

what is not found in the pulpal zone?

Answer 2

parietal plexus

Question 3

T/F each fiber gives 4 branches to Raschkows plexus. fibers are free unmyelinated nerve endings.

Answer 3

false

true

Question 4

what is true about tomes granular layer

Answer 4

interglobular dentin

Question 5

T/F cementicles can be free, embedded, or attached. the number of them decreases with increasing age

Answer 5

true

false

Question 6

clinical case with cupped occlusal surfaces, defects on lingual enamel and exposed dentin

Answer 6

erosin

ask if they eat acidic foods

Question 7

radiograph picture

Answer 7

hypercememtosis

Question 8

identification picture

Answer 8

gingival cyst

Question 9

what causes gingival cysts

Answer 9

rest of serres

Question 10

where is cementum the thinnest?

Answer 10

CEJ 30-50 um

Question 11

what fibers give rise to fast, sharp localized pain?

Answer 11

a delta

Question 12

sympathetic branches are from

Answer 12

superior cervical ganglion

Question 13

what nerve provides sensory afferent innervation

Answer 13

trigeminal nerve (V)

Question 14

T/F interradicular fibers only found in multicoated teeth, they keep adjacent teeth together

Answer 14

true

false

Question 15

T/F epithelial rests of malassez found in PDL and their function in the PDL?

Answer 15

true

false? unknown function

Question 16

T/F peritubular is less calcified than intertubular

Answer 16

false

Question 17

T/F mature odontoblasts can make 2’ dentin. damage to these cells causes subodontoblastic stem cells to different and make 3’ dentin

Answer 17

true

false

Question 18

patient max CI knocked out from baseball. you sanitize it and insert it back into alveolar bone. what reparative cell mechanism is most likely?

Answer 18

alveolar bone secretes cells and fuses cementum to bone

SEVERE injury- ankylosis

Question 19

what makes up biological width?

Answer 19

junction lepithelium and GFL

Question 20

patient comes in after crown is places and has inflamed gums. there is a 0.5 mm distance. what do you tell them?

Answer 20

the biological width has been compromised

Question 21

question comparing crevicular epithelium and junctional epithelium

Answer 21

nonkeratinized- both

more apical
epidermal cells
intercellular folding- crevicular

Question 22

raschkows plexus does not form before roots are completely developed

Answer 22

false

Question 23

T/F presence of carbonate apatite core in enamel is more soluble to acid. fluoride can replace hydroxyl ions and be less susceptible to acid dissolution

Answer 23

both true

Question 24

ch fibers are responsible for resting rotational forces?

Answer 24

all PDL fiber groups

Question 25

wound healing step

Answer 25

fibroblasts and osteoblasts replace damaged tissue

Question 26

which statement is false about lateral root canals (according to text)

Answer 26

false that there was no treatment option available

Question 27

textbook question about GCF fluid going through gingival epithelium, what does the author say it could be used for in the future?

Answer 27

markers assist in identifying those who are most vulnerable to the spread of infection from gingivitis to periodontitis

Question 28

patient presents to you with the case. they complain of pain and you deduce that the tooth is mobile. what is accountable for the mobility?

Answer 28

occlusal trauma

respiration of alveolar bone parallel to the long axis of the tooth

Question 29

what course of action to help this patients pain?

Answer 29

reestablishing occlusion by fixing crown

Question 30

how would a quick inflammatory response occur in the pulp form?

Answer 30

anastomosing branches of capillary network

leakage through fenestrated capillaries?

Question 31

Schwann cells provide myelination for what axons?

Answer 31

a delta

a beta

Question 32

T/F mesial movement of premolar during ortho tx causes mesial compression and respiration of bone. distal area has tension and exhibits bone deposition

Answer 32

both true

Question 33

T/F dental pulp collagen is largest extracellular component making up 25-32%. most prevalent is type 1 and 3 collagen

Answer 33

true

false

Question 34

sympathetics cause

Answer 34

vasoconstriction

Question 35

there are 2 types of cememntocytes, lacunae and canaliculi. lacunar house cell bodies whereas calaliculi provide communication and have cytoplasmic projections

Answer 35

both true

Question 36

exposed cementum

Answer 36

all of the above

Question 37

trigeminal nerve

Answer 37

V

Question 38

what is a characteristic of the vermillion border?

Answer 38

blood vessels close to the surface

Question 39

remove boney thing from buccal surface of 3. you then brain blood from alveolar bone and apply some sort of sheet over area. this prevents what cells from healing the injury?

Answer 39

osteoblasts?

Question 40

T/F cementum differentiated by dental matrix growth factors. can be reached through fenestration of henrtwigs sheath?

Answer 40

both true

Question 41

T/F dentinogenesis imperfect is characterized by bluish gray teeth. enamel is affected just like dentin

Answer 41

true

false

Question 42

something about pulp chambers and canals of dentinogenesis imperfect being obliterated

Question 43

tertiary dentin is released immediately in response to outside forces. it is laid down in a clean fashion

Answer 43

true

false

Question 44

T/F dentin tubules have a bigger diameter at CEJ. there are more of them at the CEJ.

Answer 44

false

false

Question 45

dental matrix proteins

Answer 45

all of the above

Question 46

if you are given a lateral periodontal cyst, which is false?

Answer 46

treatment is not necessary

cyst will resolve on its own