Final Files

Question 1

1. Lingering pain

Answer 1

a. Irreversible symptomatic pulpitis

Question 2

2. Food impaction, cervical caries on 27 and 28 and gingival inflammation. Pain with
   percussion and palpation

Answer 2

a. Remove caries and refer to perio to do crown lengthening before restorations?

Question 3

3. Toothbrush abrasion. Hypersensitivity to cold but normal response for all other clinical
   tests

Answer 3

a. Reversible pulpitis

Question 4

4. Previously RCT something idk what this question was

Answer 4

a. Refer to endo?

Question 5

5. After you anesthetize what's the next step (2 variations of this same question on here)

Answer 5

a. Endo ice to check for sufficient anesthesia

Question 6

6. VRF has better prognosis than HRF

Answer 6

a. False

Question 7

7. There’s a j shaped lesion and a single 10 mm perio pocket (drop off) on a previously
   treated RCT. With this information its safe to assume its VRF

Answer 7

a. False (bc you have to surgical expose to diagnosis this)
b. But “safe to assume” is arbitrary so discussion board this b

Question 8

8. Complicated root fracture has

Answer 8

a. Enamel, dentin, and pulp exposure

Question 9

9. VPT purpose to use on open apex immature tooth

Answer 9

a. Allowing roots to get stronger and apex to close

Question 10

10. Least severe of the luxation injuries

Answer 10

a. Concussion

Question 11

11. Most important factor for achieving favorable outcome

Answer 11

a. Dry time

Question 12

12. It is recommended to run avulsed tooth under tap water to clean it

Answer 12

a. Fase

Question 13

13. IRR has excellent prognosis if RCT is done before perforation into PDL space occurs.
    ERR has poor prognosis

Answer 13

a. True, true

Question 14

14. Rigid and semi flexible prevents ankylosis by allowing for some small movements

Answer 14

a. False (not rigid)

Question 15

15. On a mandibular incisor there can be 2 canals. Which one are you likely to miss if you
    do not create your acces incically

Answer 15

a. Lingual

Question 16

16. Access depth

Answer 16

a. 7mm

Question 17

17. Which bur for mandibular incisor access

Answer 17

a. #2 round or 333

Question 18

18. Narrowest MD access

Answer 18

a. Mand central

Question 19

19. Shape for max central incisor

Answer 19

a. Triangular with the base of the triangle at the incisal

Question 20

20. Most likely to have 2 roots

Answer 20

a. Maxillary 1st premolar

Question 21

21. Worst thing you can do during access

Answer 21

a. Perforation

Question 22

22. If you fail to locate and obturate a canal during RCT it is likely it will fail

Answer 22

a. True

Question 23

23. Mandibular molar has a ___ outline to try and avoid missing the _____ canal

Answer 23

a. Trapezoidal, DL

Question 24

24. What is true about the MB2 canal with max 1st molars

Answer 24

a. Seen in 95% of the cases

Question 25

25. Most common reason to have retreatment for max 1st molars

Answer 25

a. MB2

Question 26

26. Hardest root canal to perform?

Answer 26

a. Maxillary molar with 5 canals

Question 27

27. Biggest challenge for anesthetic (this question was also on here twice in different variations)

Answer 27

a. Mandibular molar with SIP

Question 28

28. LA is ineffective when injecting into an infected tissue with acid pH

Answer 28

a. True

Question 29

29. You should wait for buccal infiltration until adequate IA block anesthetic (something like that)

Answer 29

a. true

Question 30

30. Which is most important factor regarding 8.3% NaOCl

Answer 30

a. Don’t let the needle bind

Question 31

31. Endoactivator significant reduces the time necessary for NaOCl to be present in the canal when irrigating

Answer 31

a. False

Question 32

32. Whats the first thing to do after 1 minute of EDTA use

Answer 32

a. NaOCl to inactivate the edta

Question 33

33. Find other treatment if you cannot get rubber dam on correctly as you need to have rubber dam to preform successful RCT

Answer 33

a. True

Question 34

34. Taper of blue vortex rotary files

Answer 34

a. 0.06

Question 35

35. Which file is used for “scouting”

Answer 35

a. #10 SS hand file

Question 36

36. How to get the SS stuck in the dentin (something like that)

Answer 36

a. Continue clockwise rotation

Question 37

37. When using a straight file a ledge is created on which area

Answer 37

a. Outer wall of canal

Question 38

38. NaOCl turns into salt and water. How long does this process take to occur?

Answer 38

a. 3-5 minutes

Question 39

39. According to K… what size must the canal be enlarged to when shaping

Answer 39

b. Size #30

Question 40

40. How long must you irrigate with NaOCl for?

Answer 40

c. 30 minutes

Question 41

41. Which is true about cellulitis vs localized

Answer 41

d. All of the above (included things like fascial plane swelling, fever, refer, possible hospitalization, etc.)

Question 42

42. When you can localize the tooth what does this mean

Answer 42

e. PDL has been infected

Question 43

43. Theres a DST whats hte periapical diagnosis

Answer 43

f. CAA

Question 44

44. Always start with tooth in question for clinical testing

Answer 44

g. Fase (test adjacent 2-3 for normal baseline)

Question 45

1. Effective working time of pulpal anesthetic

Question 46

2. Average working time of pulpal anesthetic

Question 47

3. Hardest RCT?

Answer 47

a. 4 root maxillary, 3 root maxillary, 3 root mandibular, 4 root mandibular

Question 48

4. T/F: Dental trauma affects for life

Answer 48

T

Question 49

5. Know the different files used for hand files – “Will You Really Be Going Back?”

Question 50

6. T/F: Accessory rotary file is the only one that is .12 taper?

Answer 50

a. True – (25/.12)

Question 51

7. All blue vortex rotary files have?

Answer 51

a. 0.06 taper (3 marks)

Question 52

8. What is the biggest problem with access?

Answer 52

a. “Either not unroofing canal or perforation”

Question 53

9. T/F: Non-perforation is better if RCT than ERR?

Answer 53

a. True

Question 54

10. T/F: You use rigid and semi-flexible splint for ankylosis for long term and no movement of teeth?

Answer 54

False

Question 55

What is the working length of NaOCl irrigation in canal?

Answer 55

2 mm

Question 56

What do you do after EDTA?

Answer 56

“I put re-check the shape of the canal cause might’ve enlarged”

Question 57

Know endo access questions about roots and canals PowerPoint

Question 58

What do you do for vital pulp testing for open apex permanent tooth?

Answer 58

Keep it vital until is closes and the roots thicken/strengthen

Question 59

Vortex blue files: “go over this ppt to know what the diameters are; you might have to ID photo” a. 0.25/0.06 through 0.45/0.06 b. 0.10/0.02 patency file c. 0.15/0.02 glide path file d. ALL vortex blue are 0.06 taper i. Use in sequence so you don’t create a ledge

Answer 59

d. ALL vortex blue are 0.06 taper

Question 60

16. .12/.12 vortex Ni-Ti Rotary file: perfect for straight line access

Answer 60

a. Max flute diameter is 1.20mm (size #120)

Question 61

Wave one Gold Files (motor driven reciprocal files; PUSH material ahead; used in 3 passes to prevent pushing debris out of end of root) a. Small (.20/.07) YELLOW b. Primary (.25/.07) RED ***we use this mostly*** c. Large (.45/.05) BLACK

Question 62

18. Ledges - use hand files (only way to scout canal);

Answer 62

a. STAINLESS STEEL K-TYPE hand files in counterclockwise fashion (aka Watch- Winding)

Question 63

Know the compare/contrast of K-type files a. K- type files:

Answer 63

we use these; more flexible, follow natural canal when pre-curved) b. Reamers: cuts on rotation, fewer flutes, ineffective with filing motion i. dangerous and we don’t use at all c. Hedstrom files: machining via grinding i. if used in rotational manner, easily broken

Question 64

Know the compare/contrast of K-type files b. Reamers:

Answer 64

cuts on rotation, fewer flutes, ineffective with filing motion i. dangerous and we don’t use at all

Question 65

Know the compare/contrast of K-type files c. Hedstrom files:

Answer 65

machining via grinding i. if used in rotational manner, easily broken

Question 66

Dental dam is standard of care

Answer 66

a. isolate only the tooth to be treated b. if you can’t isolate with rubber dam, you cannot do the RCT

Question 67

21. Leave rubber dam and frame on when taking radiographs?

Answer 67

T

Question 68

2. 8.3% NaOCl is used to flush out debris and clean the system

Answer 68

a. you cannot 100% clean a canal

Question 69

23. Know the color schematic, the tapering sizes, etc.

Question 70

24. Know the hand files

Answer 70

a. “Will You Really Be Going Back” b. note that .60 is the last file size which increases by only .05 mm**** c. Know Stainless Steel vs Ni-Ti files!!! (for sure on final exam 2020)

Question 71

25. T/F: study about no bacteria would mean no caries

Answer 71

a. True - caries was the number one cause of pulpal infection

Question 72

26. Inconclusive testing what do you do? select two options like refer to MD, refer to neurologist, check for crack (trauma lecture)

Answer 72

a. ANSWER: refer to MD and check for crack

Question 73

28. LEO is disproven:

Answer 73

PCOD

Question 74

29. T/F: ABX to relieve pain and swelling in acute infection

Answer 74

a. False

Question 75

30. Pick incorrect statement regarding pup infection:

Answer 75

necrotic pulp and infection in adjacent teeth

Question 76

31. Most common bacteria (gram - or +)

Answer 76

a. gram negative b. the question was false about lateral spreading

Question 77

32. T/F: AAA is emergency situation, not CAA (true false question)

Answer 77

a. CAA no ABX b/c no fever, just drain that bitch

Question 78

33. AAA called Phoenix cause it can go from CAA - AAA anytime

Question 79

34. Radiograph with gutta percha out of the end of the apex of root and asked what this was an example

Answer 79

a. Perforation

Question 80

35. Really review the charts for pupal and peri apical dx

Answer 80

a. which respond to cold, heat, percussion, if there is DST then what etc.

Question 81

36. Chronic situations with bacteria:

Answer 81

anaerobic bacterial flora

Question 82

38. T/F: Stundquist study was

Answer 82

true; % of bone of cortical and medullary which was true (put true)

Question 83

39. Apical periodontitis choose what was incorrect:

Answer 83

a. necrosis and it could spread to adjacent teeth (I think), chronic/acute AP