01a Post and Core Schachman

Question 1

What is the first goal of Post and Core

Answer 1

Protect and preserve remaining radicular and coronal tooth structure

Question 2

What is the second goal of Post and Core

Answer 2

Provide a supportive and retentive foundation for the placement of a definitive restoration

Question 3

What is the 3rd goal of post and core

Answer 3

Maintain the apical endodontic seal of the root canal filling material

Question 4

We are looking to restore function and ______ with a post and core

Answer 4

esthetics

Question 5

The ferrule effect provides ______ form so that post and core system does not ______ freely in the tooth

Answer 5

Resistance, Rotate

Question 6

What are some advantages of ParaPost compared to a custom post

Answer 6

Parallel posts with a patterned surface are more retentive

Only 1 appointment is needed

Question 7

How much GP is left in order to protect the apical seal

Answer 7

4-5 mm

Question 8

How do we remove GP?

Answer 8

Gates glidden followed by warmed endo condenser

Question 9

What speed handpiece should be used to remove GP

Answer 9

Slow

Question 10

Steps for Determining length of post space:
1. Examine the most recent ____ of tooth

2. Does this show the tooth _____ as it is today
3. Measure from the ____ end of the GP to the incisal edge
4. Subtract ____ mm
5. This is the ____ of the post space you will create

Answer 10

1. PA
2. Exactly
3. Apical
4. 5
5. length

Question 11

Steps to Remove GP 2:

1. Decide whether to use a #2 or #3 ______
2. Put a _____ on the GG
3. ______ the GP
4. Remove the GP to the ______ you have determined
5. Remove in the _____ _____ of the tooth

Answer 11

1. Gates Glidden
2. Stopper
3. Visualize
4. depth
5. Long axis

Question 12

Steps to remove GP 3

1. Let _______ size dictate your post space size
2. Small canals like _______ _______ take a ______ size 3 parapost and need a size 3 GG
3. Mx Centrals in young adults may be large a need a size 4.5 _____ PP (____ mm) and require a #4 GG

Answer 12

1. canal
2. Mx Laterals, brown
3. Blue (1.14)

Question 13

Always remove the GP with ____ and _____ ______ before you parallel the shape of the canal with a PP drill

Answer 13

Gates Glidden

Heated instruments

Question 14

What increases the chances of root fractures

Answer 14

When the post space preparation is not in the long axis of the tooth

Question 15

What happens if the post perforates the root

Answer 15

Unrestorable, iatrogenic mistake causing tooth extraction

Question 16

What is likely to happen if there is less then 0.5 mm of radicular dentin

Answer 16

Fractures