Dentin Pulp Complex I Flashcards Preview

Quizam 3 Oral Bio > Dentin Pulp Complex I > Flashcards

Flashcards in Dentin Pulp Complex I Deck (29):
1

What are the components of dentin?

70% inorganic
20% organic
10% water

2

The inorganic material in dentin is mostly composed of

Hydroxyapatite

3

The organic components of dentin is composed of?

90% collagen
(Mostly 1 and some 3,5)
10% non-collagenous proteins

4

What are some of the non collagenous proteins found in dentin?

DMP-1
DSPP
DSP
DPP
DG

5

What is dentin composed of that is also found in bone?

BSP
OP
OC
ON

6

How is DSPP cleaved?

by BMP-1

7

there are 3 types of deffects from dentin sialophosphoprotein.... what are they?

1: pulp chambers filled w/ dentin
2: also pulp chambers w/ dentin but not associated with OI
3: Enlarged pulp chambers

8

Dentin is formed from

mesenchym that turns into odontoblasts which line the pulp chamber

9

Where does the Dentin-pulp complex arise from?

the dental papilla

10

odontoblasts fill what zone?

acellular zone (between the IEE and dental papilla)

11

WHat shape does the DEJ have?

a scalloped edge

12

2 important things about the shape of the DEJ what are they?

Defines Shape of the crown
Keeps dentin attached to enamal

13

how is the DEJ bond together?

marging of HA of dentin and enamel

14

WHat is the first layer of dentin

Mantle Dentin (close to DEJ)

15

enamel spindles =

penetration of the IEE

16

moving away from DEJ odontoblasts produce

matrix

17

what do odontoblasts leave behind?

tomes fibers (future odontoblast process)

18

initially is dentin mineralized

no (AKA predentin)

19

what forms after DEJ formation?

circumpulpal dentin

20

what does HER's stand for?

Hertwigs root seath

21

what does HERS break down into?

rests of Malassez

22

primary dentin is composed of

mantle dentin and circumpulpal dentin

23

secondary dentin is composed of

made throughout life and laid down after root formation

24

3rd dentin arises when...

damage occurs to help protect the tooth.
generally no tubules

25

define reactionary

trauma doesn't hurt odontoblasts

26

define reparative

damages odontoblasts

27

interglobular dentin is

areas of hypomineralized dentin

28

what are Owen- enhanced lines?

just a line that indicates disruption of tooth formation in dentin

29

what are Granular layer of tomes?

funny looking dots around the roots in dentin
(not too sure what causes it)