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Flashcards in Dr. Morrison's Endo Talk Deck (25):
1

A tooth is derived from _________.

Neural Crest Cells

2

What is the direction of building the teeth?

From the Crown first then down to the root

3

What are the 5 stages of building a tooth?

1.Bud 2.Cap 3.Bell 4.Dentinogenesis 5.Amelogenesis

4

What does the pulp arise from?

the dental papilla

5

What does the occulsial surface arise from?

the enamel knot

6

What are the three names for the end of the root?

1.Epithelial diaphragm 2.hertwigs root sheath 3.Cervial Loop

7

Some epithelial cells remain in the periodontal ligament as cell rests of _______.

Mal-a-ss-ez

8

An extra canal in the coronal 2/3s is called a _______ canal. An extra canal in the apical 1/3 (and furcations) is called a ______ canal.

coronal: Lateral Canal.....apical: accessory canal

9

Location of the _______ changes with age because of cementum deposition.

Apical Foramen

10

What is the most common cell type in the pulp?

fibroblasts

11

What type(s) of collagen do the fibroblasts of the dental pulp make?

Type I and Type III

12

What is the name of the extension of an odontoblast into the dentin?

Tome's Process

13

Odontoblasts are _____ shaped at the crown, _____ at mid tooth, and _____ at the apex.

Crown: columnar, Mid: Cuboidal, Apex: Squamous

14

Which region of the pulp contains the most type I and III collagen?

the apical region

15

What type of collagen is secreted by the odontoblast, where?

Type I...dentin

16

What type of fiber type do you have pain that does NOT linger? Which diagnosis is associated with this fiber type?

Pain Fibers A (alpha)...Reversible Pulpitis

17

Which type of fiber is associated with lingering pain? What diagnosis is this?

C Fibers (Central High Bobcats!)...Irreversible Pulpitis

18

What is the main theory of dentin sensitivity?

the hydrodynamic theory

19

What is the MAIN blood supply to the pulp?

Internal Maxillary Artery

20

What is the system found in the pulp that aids in 1. Normal blood flow and 2.Is a good defense mechanism?

A-V Shunt (Arterio-venous)

21

Where is blood flow the greatest?

the coronal pulp

22

What are the two nicknames for pulp calcifications?

pulp stones, denticles

23

Do not perform a _______ of a carious exposure!

direct pulp cap

24

How much success was there with a pulp cap after 10 years?

13% :(

25

What is usually a cause of a receding pulp chamber?

Reactionary Dentin being built into the pulp