Endo-Perio

Question 1

How do lateral canals form

Answer 1

While migrating apically and forming the root, the epithelial sheath of Hertwig
can have discontinuities
run across blood vessels

Question 2

concentration of lateral canals

Answer 2

apical 17%
Middle 9%
coronal 1.8 %

Question 3

What is the pulpal response to caries

Answer 3

Pulpal Inflammation
Local tissue destruction
Formation of microabscesses

Question 4

Perio exam

Answer 4

PD
BOP
Purulence 
Mobility
Density of marginal bone

Question 5

What is best view to detect a VRF

Answer 5

Axial slices

Question 6

what can give you the impression of periodontal disease

Answer 6

Enamel pearl
Cemental tear
palatal groove

Question 7

After endo is done how long is the wait bf perio

Answer 7

2-3 months

Question 8

what is the classification of cracked teeth

Answer 8

Craze lines
Fractured cusp
cracked tooth
split tooth
VRF

Question 9

where does a cracked tooth start

Answer 9

Crown level and progresses apically

Extends M-D

Question 10

where does VRF start

Answer 10

Starts at the ROOT at any level

B-L direction

Question 11

Krell and Rivera

Answer 11

20% will need RCT if a crown is placed on teeth that show a crack

Question 12

Ng et al. 2011

Answer 12

Conditions found to improve tooth survival:
achievement of patency at canal terminus
absence of root filling extrusion
teeth with cast restoration after treatment
teeth with both mesial and distal adjacent teeth present
teeth not requiring cast post and core for support and retention of restoration.