Deck 24: Endodontics

Question 1

If heat is applied to the tooth and pain decreases, there is a chance of irreversible pulpitis.

Answer 1

False

Question 2

The patient who has an inflamed pulp can always inform the dentist of the degree of inflammation.

Answer 2

False

Question 3

The localized destruction of tissue and accumulation of exudate around the apical area is ____________.

A) a fistula
B) osteomyelitis
C) cellulitis
D) a periapical abscess

Answer 3

a periapical abscess

Question 4

A path to the outside surface that enables an abscess to drain is ____________.

A) a fistula
B) osteomyelitis
C) cellulitis
D) a periapical abscess

Question 5

Some sources of irritation to pulp include ____________.

A) advanced caries
B) trauma to the tooth
C) invasive restorative procedures
D) All of the above

Question 6

When an abscess spreads into the facial tissues causing swelling, it is ____________.

A) a fistula
B) osteomyelitis
C) cellulitis
D) a periapical abscess

Question 7

Gutta-percha is a common material used to fill or seal the canal.

Question 8

A method to disinfect the root canal could include a small amount of disinfectant applied to the insides of the root canal walls.

Question 9

Some files and reamers are used once and discarded into the sharps container.

Question 10

If the pulp is inflamed but cannot heal itself, it is ____________.

A) irreversible pulpitis
B) reversible pulpitis
C) apical periodontitis
D) cellulitis

Question 11

Extensive bone loss is a common indication for a root amputation.

Question 12

As the dentist estimates the length of the root of the tooth, the dental assistant can record the length of the root in the patient's chart.

Question 13

The use of a rubber dam is optional during a root canal.

Question 14

Some apex finders/locators can display a graphic image by enlarging the image as the file nears the apex.

Question 15

Dental microscopes are playing an integral role in endodontic treatments and therapies.

Question 16

Placement of the dental dam during a root canal treatment can also protect the patient's mouth and throat.

Question 17

If the pulp is inflamed but can heal itself when the irritant is removed, it is ____________.

A) irreversible pulpitis
B) reversible pulpitis
C) apical periodontitis
D) cellulitis

Question 18

Electric pulp testing measures the degree of tooth vitality.

Question 19

A vital pulp is a ________ pulp.

A) dead
B) living, healthy
C) diseased
D) none of the above

Question 20

Transillumination test involves the light to produce shadows that may indicate vertical fractures in the tooth.

Question 21

Root canals are measured in ____________.

A) inches
B) millimeters
C) micromillimeters
D) none of the above

Question 22

Obturating the canals is defined as ____________.

A) cleaning
B) irrigating
C) shaping
D) filling or sealing

Question 23

Gates-Glidden drills are used to widen the __________ of each canal.

A) opening
B) apical end
C) middle
D) entire length

Question 24

The tapping of the suspect tooth and a control tooth with a mouth mirror handle is a __________ test.

A) pulp vitality
B) percussion
C) transillumination
D) mobility

Question 25

In determining the presence of vertical fractures, __________ may be used.

A) radiographs
B) dry ice
C) disclosing solution
D) transillumination

Question 26

The most useful tools in diagnosing periapical problems are often ____________.

A) pulp vitality tests
B) percussion tests
C) radiographs
D) none of the above

Question 27

The ________ syringe is used to irrigate the canals.

A) Luer-Lock
B) aspirating
C) bulb
D) none of the above

Question 28

A pulp vitality test that creates a high frequency current is ____________.

A) dry ice
B) electric
C) heated gutta-percha
D) none of the above

Question 29

Place the colors in the correct order for a pack of files.
1) Red
2) White
3) Black
4) Yellow
5) Blue
6) Green

A) 1, 2, 3, 4, 5, 6
B) 6, 5, 2, 1, 4, 3
C) 5, 2, 4, 3, 1, 6
D) 2, 4, 1, 5, 6, 3

Question 30

When using a cold test to check pulp vitality, ice is placed on the ____________.

A) facial surface
B) occlusal surface
C) lingual surface
D) It does not matter on which surface.

Question 31

Gates-Glidden drills are used ____________.

A) by hand
B) in the high-speed handpiece
C) in the low-speed handpiece
D) not in endodontics

Question 32

The intracanal instrument that removes the soft tissue from the pulpal canal is ____________.

A) reamer
B) broach
C) file
D) Gates-Glidden drill

Question 33

Which files are shaped like pine trees and used in a push-pull motion?

A) Hedstrom
B) K-type
C) Gates-Glidden
D) None of the above

Question 34

Which solution is most commonly used to irrigate the canals?

A) Sodium hypochlorite
B) Household bleach
C) Both a and b
D) Neither a nor b

Question 35

Which tool is used to prepare the canal for a post?

A) Gates-Glidden
B) Pesso reamer
C) Lentulo â spiral
D) Luer-Lock

Question 36

Which instrument is used to laterally condense the gutta-percha in each canal?

A) Glick
B) Endo explorer
C) Spreader
D) Plugger

Question 37

The intracanal instrument that is used to enlarge and smooth the canal is the ____________.

A) reamer
B) broach
C) file
D) Gates-Glidden drill

Question 38

When using an electric pulp tester, toothpaste is used to ____________.

A) act as a conducting medium
B) help clean the area
C) determine the vitality of the pulp
D) none of the above

Question 39

Which tool is used to spin root canal sealer into the canal?

A) Gates-Glidden
B) Pesso reamer
C) Lentulo â spiral
D) Luer-Lock

Question 40

The advanced stage of periapical infection that involves the bone tissue is ____________.

A) a fistula
B) osteomyelitis
C) cellulitis
D) a periapical abscess

Question 41

Root canal treatment usually is completed in how many appointments?

A) Two
B) Three
C) Four
D) Five

Question 42

In which procedure is the apex of the root removed?

A) Hemisection
B) Apicoectomy
C) Root amputation
D) Root canal

Question 43

Identify the instrument pictured.

A) Broach
B) Hedstrom
C) K-type flex
D) Reamer

Question 44

Place the steps of a root canal in order.
1) Irrigate the canals
2) Locate the canals
3) Obturate the canals
4) Remove the pulpal tissue
5) Gain access to the pulp
6) Enlarge and smooth the canals

A) 1, 2, 3, 4, 5, 6
B) 5, 2, 4, 6, 1, 3
C) 2, 4, 6, 5, 3, 2
D) 4, 3, 2, 6, 5, 1

Question 45

During the root canal treatment, the root canal is often irrigated with __________ to remove debris.

A) saline solution
B) anesthetic solution
C) chlorinated soda
D) none of the above
E) all of the above

Question 46

Which procedure removes all the pulpal tissues in the pulp chamber and stops 1-3 mm short of the apex?

A) Pulpotomy
B) Root canal
C) Hemisection
D) Pulpectomy

Question 47

___________ are used to prepare for posts.

A) Gates-Glidden drills
B) Pesso reamers
C) Lentulo â spirals
D) Glick # 1

Question 48

Identify the instrument pictured.

A) Broach
B) Hedstrom
C) K-type flex
D) Reamer

Question 49

Pulpal cells often die from irreversible pulpitis. As pulp inflammation progresses, pus or gas will form in the pulp chamber. The formation of this gas or pus condition is called ____________.

A) granuloma
B) exudate
C) osteomyelitis
D) cellulitis

Question 50

The restoration of choice on the remaining tooth after a hemisection is ____________.

A) amalgam
B) composite
C) fixed prosthesis
D) full denture

Question 51

What is taken periodically throughout the procedure to evaluate progress?

A) Radiographs
B) Pulp vitality tests
C) Photographs
D) None of the above

Question 52

Which instrument will measure the distance to the apex of each root?

A) Vitality scanner
B) Heating unit
C) Apex finder
D) None of the above

Question 53

__________ is when broaches are used to remove soft tissue from the pulp canal.

A) Chelation
B) Extirpate
C) Hemisection
D) Pesso

Question 54

Which procedure removes the pulp in the pulp chamber only?

A) Pulpotomy
B) Root canal
C) Hemisection
D) Pulpectomy

Question 55

Which type of handpiece is used to gain access through the bone to the apex during an apicoectomy?

A) Low-speed
B) High-speed

Question 56

Identify the instrument pictured.

A) Broach
B) Hedstrom
C) K-type flex
D) Reamer

Question 57

The removal of one root and the overlying crown is a(n) ____________.

A) apicoectomy
B) root amputation
C) hemisection
D) none of the above

Question 58

Which instrument is used to gain access to the pulp?

A) Round bur in the low-speed handpiece
B) Round bur in the high-speed handpiece
C) Taper bur in the low-speed handpiece
D) Taper bur in the high-speed handpiece

Question 59

Identify the instrument pictured.

A) Broach
B) Hedstrom
C) K-type flex
D) Reamer

Question 60

To ensure consistency in the sizes and lengths of the intracanal endodontic instrumentation, the ADA and manufacturers have standardized a name-number and color-code system. Which group of files are flexible and used for curved and narrow canals?

A) Barbed broach
B) K-type
C) Hedstrom
D) Flex

Question 64

Identify the instrument pictured.

A) Gates-Glidden
B) Lentulo â spiral
C) Pesso reamer

Question 65

Identify the instrument pictured.

A) Gates-Glidden
B) Lentulo® spiral
C) Pesso reamer