Unit II

Question 1

What are A Fibers?

Answer 1

Terminate as unmyelinated free nerve endings around odontoblasts or along odontoblast process

Question 2

What are C Fibers

Answer 2

Primary Pulpal Fibers They terminate in the pulp proper and are unmyelinated

Question 3

What are we trying to get numb?

Answer 3

Pulp and Surrounding hard and soft tissue

Question 4

Which is harder to get numb, pulp or surrounding tissues?

Answer 4

Pulp

Question 5

In the PDL do we have A delta or A beta fibers?

Answer 5

A Beta

Question 6

What type of receptors are in the pulp and dentin?

Answer 6

Nociceptors

Question 7

How does an electric pulp tester work?

Answer 7

Generates an electric signal that increases on a scale from 0-80. Toothpaste is the conductor and the patient holds the wand against the tooth until they feel the sensation in the pulp. When they let go the circuit is broken and auto resets to 0

Question 8

What is the duration goal for endo?

Answer 8

60 Minutes

Question 9

Who was Dr. Archer’s research partner and where was the article published?

Answer 9

Dr. Certosimo

Journal of Operative Dentistry, 1996

Question 10

What did Dr. Archer’s research show?

Answer 10

That the electric pulp tester was a reliable predictor for the patient feeling pain during a restorative procedure

Question 11

Are there more problems numbing the mandibular teeth or the maxillary teeth?

Answer 11

Mandibular

Question 12

Are there more problems numbing the Anterior teeth or the posterior teeth?

Answer 12

Anterior

Question 13

Which are harder to numb? Irrerverible pulpitis teeth or asymptomatic vital teeth?

Answer 13

Irreversible pulpitis

Question 14

What is endo ice?

Answer 14

Refrigerant spray

Question 15

What is the temp of endo ice?

Answer 15

• 26 degrees C

Question 16

What is the chemical of endo ice?

Answer 16

1,1,1,2, TetraFluoro

Question 17

Is it better to use a large cotton pellet or small with endo ice?

Answer 17

Large

Question 18

To what is the cotton pellet applied to when using endo ice?

Answer 18

Buccal surface of tooth or full coverage restoration

Question 19

Is endo ice more effective on anterior or posterior teeth?

Answer 19

Anterior

Question 20

What is a big difference between the testing ability of the endo spray and the electric pulp tester?

Answer 20

The endo ice can be used on full coverage restorations, the EPT connot

Question 21

What would an abnormal response to the endo ice be?

Answer 21

Prolonged or severe pain and/or different in characteristics of the adjacent teeth

Question 22

What could result in a false positive?

Answer 22

Transference of the sensation to adjacent teeth or soft tissue due to a receded or constricted pulp

Question 23

What does a pulp reading of +++ mean?

Answer 23

Severe pain that doesn’t go away when stimulus is removed

Question 24

What is the symbol for a pulp test that had slight pain that is immediately reversed?

Answer 24

+

Question 25

About how long does it take to get an anterior tooth numb after injection?

Answer 25

5 mins

Question 26

How long does it take to numb a posterior tooth?

Answer 26

15 mins

Question 27

What is the benefit of using a vasoconstrictor?

Answer 27

Increase duration of anesthesia

Question 28

Which works better for the Lateral incisors? Articaine or Lidocaine?

Answer 28

Articaine

Question 29

What is true about giving two carpules in the maxilla that isn’t true in the mandible?

Answer 29

Two carpules in the maxilla will MORE than double the duration.

Question 30

What teeth does a V2 Block work for?

Answer 30

Maxillary Molars

Question 31

Which molars does a PSA block NOT work on?

Answer 31

First Molars

Question 32

For what teeth does an Infraorbital nerve block not work well for?

Answer 32

Maxillary Incisors

Question 33

What will a palatal injection do for maxillary molars?

Answer 33

Increase the level of anesthesia