Intro to Endo-Anatomy, Colors of Files

Question 1

Purpose of Endo- PRIMARILY to prevent or cure _________…Secondarily to improve or enhance _______ procedures.

Answer 1

apical periodontitis….restorative

Question 2

What is used to irrigate the canals?

Answer 2

SODIUM (Na) HYPO (not hyper) CHLORIDE (not fluoride). (NaClO)

Question 3

What are the 4 phases of Endodontic Tx?

Answer 3

1.Diagnostic 2.Preparatory 3.Obturate 4.Restore

Question 4

What is the general shape of a Max Centaral Incisor canal?

Answer 4

round

Question 5

GUARANTEED to be on the exam-what is the longest tooth in the mouth?

Answer 5

Maxillary Canine (longest file is 31mm, so how did he do 34mm?)

Question 6

What is the general shape of the canine canal?

Answer 6

more oval than the centrals/laterals

Question 7

What is the most common amount of canals for a Max 1st PM? Roots?

Answer 7

2 AND 2

Question 8

How many canals doe the max 2nd PM have?

Answer 8

1 (75%) of the time

Question 9

What % of Max 1st molars have 4 canals?

Answer 9

94% OR approx 90%

Question 10

WHAT IS THE MOST VARIABLE TOOTH?

Answer 10

Maxillary 1st Molar

Question 11

The Max 2nd molar typically has ____ canals

Answer 11

3

Question 12

What % of Mand centrals have 2 canals??

Answer 12

30%

Question 13

What % of Mand LATERALs have 2 canals?

Answer 13

43%

Question 14

The Mand lateral incisor is usually _____ than the mand central.

Answer 14

LONGER (by 2mm)

Question 15

What is the 2nd longest tooth in the dentition?

Answer 15

Mand canine

Question 16

What % of mand 1st PM have 2 canals?

Answer 16

30%

Question 17

Much like the maxillary, the mand 2nd PM has less of a chance for 2 canals- only ___%

Answer 17

14% chance

Question 18

Thats kind of scary…mand 1st molars can have 4 canals __% of the time.

Answer 18

30%

Question 19

Which tooth may have a “C” shape canal system?

Answer 19

Mand 2nd Molar (the ‘c’ shape is the orientation of the canals from an occlusal view)

Question 20

What color is .06?

Answer 20

Orange

Question 21

What color is .08?

Answer 21

Grey

Question 22

What color is .10?

Answer 22

Purple

Question 23

What two diameters are WHITE?

Answer 23

.15 and .45

Question 24

What two diameters are YELLOW?

Answer 24

.20 and .50

Question 25

What two diameters are RED?

Answer 25

.25 and .55

Question 26

What two diameters are BLUE?

Answer 26

.30 and .60

Question 27

What diameter is GREEN?

Answer 27

.35

Question 28

What diameter is BLACK?

Answer 28

.40