Day 1

Question 1

Endo is “The branch of dentistry concerned with the

Answer 1

morphology, physiology and pathology of the human dental pulp and periradicular tissues.”

biology of the normal pulp
etiology, diagnosis, prevention, treatment of diseases and injuries of the pulp and associated periradicular conditions

Question 2

Obturate:

Answer 2

To close or obstruct; to block passage through.

Question 3

Goals

Answer 3

1. To debride and shape the root canal system
   Debridement: Surgical excision of dead, devitalized, or contaminated tissue and removal of foreign matter from a wound.
2. To obturate the root canal system
3. To maintain health and/or promote healing and repair of
   periradicular tissues
4. To alleviate present and prevent future adverse clinical
   signs or symptoms

Question 4

Post and core more often in

Answer 4

anteriors/premolars, not molars.

Question 5

Overview of procedure

Answer 5

Initial Radiograph (“Start film”)
Estimation of Working Length 
Rubber Dam Isolation
Access Opening
Working Length Determination (via radiographs)
Cleaning and Shaping of the Canal(s) – either Step Back or Crown Down technique
Master Cone Selection
Obturation (check with radiograph)
Restoration (temporary or final)
Final Radiograph (“Finish film”)

Question 6

——- bur is the best for endo

Answer 6

4 round

Question 7

——- explorer

Answer 7

DG or DL or D16

Question 8

Canal lubricant used with —-.

Answer 8

files

Question 9

Glick –

Answer 9

thicker end is for heat uses – paddle end is used for putting temporary/final restoration in. Other end for working with and finishing gutta percha.

Question 10

Cotton used to show when —— . —— is most widely used temp material. Again, glick used for finishing.

Answer 10

to stop drilling – so that you don’t go down into gutta percha

Cavit

Question 11

Removing the roof of the chamber……remember the floor of the chamber is —– and the roof is a ——

Answer 11

GREY

Yellow ish-White

Question 12

Type 1

Answer 12

single root canal

Question 13

Type 2

Answer 13

Two root canals converging into one

Question 14

Type 3

Answer 14

Two independent root canals

Question 15

Type 4

Answer 15

Single root canal splitting into two

Question 16

Max incisors access shape

Answer 16

triangular

Question 17

canine access shape

Answer 17

oval

Question 18

premolar access shape

Answer 18

ellipse

Question 19

Max molar access shape

Answer 19

triangular

Question 20

Max 1st molar - Mesiolingual –

Answer 20

the fourth one that may or may not be there – MB2 is another name for it. They can be all over the place, hence the difference in naming. MB2 is in about 80% of cases.

Question 21

In max 2nd molar 4th canal is present about —— of the time* You want to be in the center of the tooth as much as possible.

Answer 21

40-50%

Question 22

Mand central and lateral incisor access shape

Answer 22

triangular

Question 23

Mand molar access shape

Answer 23

square or trapezoidal

Question 24

Mand molars - If only 3 orifices, distal will be directly

Answer 24

across and split the middle section of the mesial two.

Question 25

C-shaped canals - Often seen when roots are

Answer 25

fused/conical. Mand 2nd molars are where this is most often seen.

Question 26

More than one canal/canal splitting (bottom right) can give the appearance of a

Answer 26

canal disappearing.

Question 27

Wider teeth have more canals than

Answer 27

tall, skinny teeth!

Question 28

Start with file size

Answer 28

10 - smallest first, always.

Question 29

Measure, subtract 1mm =

Answer 29

Estimated Working Length

Subtract 1 mm because anatomy studies of teeth show that root canal constricts in a location that is ideal for ending a root canal, this is about 0-1mm from radiographic apex of tooth. We want to hit this location on the nose.

Question 30

Dentinocemental junction –

Answer 30

where canal constricts at end point. Adjust stop on file to 1 mm less than length. Bend file if needed.

Question 31

Irrigate canal to ensure that it is wet (——— in clinic). Without solvent, files ——–.

Answer 31

Sodium hydrochloride

engage dentin short of apex

Question 32

Working Length Determination – Evaluate your initial file film…

Off by 3 mm or more – ——-
Off by less than 3 mm – ——–

Answer 32

take new radiograph!

okay to adjust and go (can take a new radiograph to double check)