Endodontic Instruments and Supplies

Question 1

What diagnostic equipment is needed in endodontics?

Answer 1

• Appropriate radiographs/CBCT
• Pulp testing equipment
• Mirror, explorer, cotton pliers
• Tooth slooth (bite)
• Trans-illuminator (cracks)
• Perio probe
• Cotton rolls/2x2 gauze for isolation

Question 2

Profound ____ is critical

Answer 2

Anesthesia

Question 3

Supplemental injections that can be done in addition to blocks/infiltration

Answer 3

• PDL (Ligajet)
• X-tip/Stabident (intraosseous)

Question 4

____ of the field is essential during RCT field

Answer 4

Isolation

Question 5

Isolation allows for protection from ____ and prevents ____

Answer 5

Aspiration; saliva/bacterial contamination of canal system

Question 6

You can use ____ or other sealing material in conjunction with rubber dam to help prevent ____

Answer 6

Kool-Dam; Saliva contamination

Question 7

____ is the standard of care

Answer 7

Rubber dam

Question 8

Performing a root canal without a rubber dam is considered to be ____

Answer 8

Malpractice

Question 9

What materials are used for endodontic access?

Answer 9

• High speed handpiece
• Slow speed handpiece
• Endodontic explorer
• Mirror, spoon excavator
• Magnification
• Knowledge of dental anatomy

Question 10

Which burs fit into the high speed handpiece?

Answer 10

• # 4/#6 round bur
• # 557
• Endo Z bur
• Diamonds for access through porcelain/PFM crowns

Question 11

Which burs fit into the slow speed handpiece?

Answer 11

• Surgical length rounds
• Munce discovery burs

Question 12

What does ISO stand for?

Answer 12

International Standards Organization

Question 13

What does ANSI stand for?

Answer 13

American National Standards Institute

Question 14

What does FDI stand for?

Answer 14

Federation Dentair Internationale

Question 15

What instruments are used for cleaning and shaping?

Answer 15

• NiTi files with motor
• Hand files

Question 16

Examples of hand files

Answer 16

• K-files (square cross section)
• Flexofiles (triangular cross sections)
• Hedstrom (circular cross section)

Question 17

Stainless steel hand files are used for initial instrumentation to:

Answer 17

• Navigate canal anatomy and obtain patency
• Establish a glide path

Question 18

What are rotary files used for?

Answer 18

Used to enlarge the canal space to allow irritants down the canal end

Question 19

GT 20/.12 is a special ____ used to ____

Answer 19

Rotary file; open a tight canal orifice

Question 20

What is the Vortex 25/.08 used for?

Answer 20

Special rotary file used to open the coronal 1/3 of canal orifice

Question 21

6 Endodontic Color Code

Answer 21

Pink

Question 22

8 Endodontic Color Code

Answer 22

Gray

Question 23

10 Endodontic Color Code

Answer 23

Purple

Question 24

What is the endodontic color code for white?

Answer 24

15 and #45

Question 25

What is the endodontic color code for yellow?

Answer 25

#20 and #50

Question 26

What is the endodontic color code for red?

Answer 26

#25 and 55

Question 27

What is the endodontic color code for blue?

Answer 27

#30 and #60

Question 28

What is the endodontic color code for green?

Answer 28

#35 and #70

Question 29

What is the endodontic color code for black?

Answer 29

#40 and #80

Question 30

A #15 file has a tip diameter of:

Answer 30

0.15mm

Question 31

A #140 file has a tip diameter of ____

Answer 31

1.4mm

Question 32

Cutting portion of endodontic file is ____

Answer 32

16mm

Question 33

File taper determines the rate of ____

Answer 33

Diameter increase

Question 34

____ is often used in emergency treatment to remove pulp tissue from large canals

Answer 34

Barbed broach

Question 35

True or false: You can touch or bind against canal walls with a barbed broach

Answer 35

False

Question 36

You can use a barbed broach to remove ____ from access cavity

Answer 36

Cotton pellet

Question 37

What is the only irrigant that can dissolve vital and necrotic tissue?

Answer 37

Sodium hypochlorite

Question 38

Vital tissue takes about ____ to dissolve

Answer 38

30 minutes

Question 39

____% sodium hypochlorite is commonly use and household bleach is stronger of weaker?

Answer 39

3-6: stronger and should be dilated

Question 40

pH of sodium hypochlorite

Answer 40

12-13

Question 41

To administer sodium hypochlorite, use a ____ needle

Answer 41

Side-vented irrigation needle

Question 42

Should you bind irrigation needle in canal?

Answer 42

NEVER