dental caries & PRP

Question 1

pits and fissure lesions enamel what shape
(triangle apex towards what)

Answer 1

triangle apex toward occlusal
-small site at origin
-base widens towards DEJ

Question 2

pits and fissure lesion dentin what shape
(triangle apex towards what)

Answer 2

triangle apex towards pulp
-wide base at DEJ
-apex of cone towards pulp

Question 3

progression of pits and fissures resembles two triangles with their bases meeting where

Answer 3

along the junction of enamel and dentin

Question 4

smooth surface lesion enamel triangle shape how for origin and apex

Answer 4

wide area of origin
apex towards DEJ

Question 5

smooth surface lesion dentin shape how

Answer 5

wide base at DEJ
apex of cone towards pulp

Question 6

how are the triangles for enamel and dentin for smooth surface lesions

Answer 6

pointing inward, same direction

Question 7

root surface lesion begins directly on what and typically with what

Answer 7

cementum/dentin
recessed gingiva

Question 8

what shape for root surface lesions

Answer 8

pot hole (saucer-shaped)

Question 9

common causes of recurrent lesions

Answer 9

poor oral health care
restoration w poor margins -> permit leakage, entrance of both bacteria and substrate

Question 10

what bacteria invades enamel and facilitates or propagates

Answer 10

mutans S. facilitates

Question 11

what bacteria invades dentin and facilitates or propagates

Answer 11

lactobacillus propogates

Question 12

primary vs secodary dentin

Answer 12

primary - initial formation of tooth, forms the primary shape of the tooth

secondary dentin - next to pulp, lifelong

Question 13

physiologically, which dentin follows the complete formation of which dentin

Answer 13

secondary follows complete formation of primary

Question 14

how does sclerotic dentin appear and what is it

Answer 14

darker and harder than normal dentin
occurs as result of caries or normal aging process

Question 15

what is tertiary dentin and how does it compare to primary dentin

Answer 15

tertiary no as hard as primary
laid down in response to attrition, caries, or restorative dental procedure

Question 16

tertiary dentin defensive dentin in what two terms

Answer 16

reactionary dentin
reparative dentin

Question 17

what allows mild injury shallow carious lesion to become reactionary dentin

Answer 17

primary ondontoblasts

Question 18

what allows deep caries lesion cause death of primary odontoblasts to generate reparative tertiary dentin

Answer 18

replacement cells (secondary ondotoblast)

Question 19

what is the superior barrier, reactionary dentin or reparative tertiary dentin

Answer 19

reparative tertiary dentin

Question 20

infected vs affected dentin

Answer 20

check slide

Question 21

result of severe irritation
infection, death of pulp abscess is what

Answer 21

pulpal necrosis

Question 22

detection of caries
pits and fissure
proximal surfaces
facial and lingual surfaces
recurrent lesions

Answer 22

pits and fissures - visual tactile
proximal - visual, radiographs
facial and lingual - visual, tactile w explorer
recurrent lesions - visual, tactile, radiographs

Question 23

medical model paradigm includes what 2 things

Answer 23

prevention
re-mineralization

Question 24

what can help w remineralization (2)

Answer 24

MI paste, fluoride

Question 25

preventative resin restoration is limited, nonconventional prep that combines what

Answer 25

sealant therapy w therapeutic restoration of incipient caries w composite resin

Question 26

Type A caries is what and limited to what

Answer 26

caries is incipient and limited to enamel

Question 27

Type A no radiographic findings, and not possible for what

Answer 27

not possible to remineralize

Question 28

type B caries extends how

Answer 28

extends minimally into dentin and is small and confined

Question 29

what bur for type a and b

Answer 29

201.3, 330

also 1/4 round burs for type A

Question 30

apply ultra etch for how long

Answer 30

20sec

Question 31

apply 2 layers of schotchbond universal for how long

Answer 31

20s (10s each)

Question 32

air thin for how long

Answer 32

5 sec

Question 33

light cure for how long

Answer 33

10 sec

Question 34

apply permaflo in shallow areas how shallow or Filtek supreme and sealants in deep areas how deep

Answer 34

permaflo 0.5mm
deep areas 1mm

Question 35

after permalflo or filtek, how long to light cure

Answer 35

20s light cure