Endodontics SDLE MCQ | Part 3

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1 / 50

Category: Endodontics

1) What is the initial way to diagnose vertical root fracture (VRF)?

Occlusal X-ray

CBCT

PA

MRI

2 / 50

Category: Endodontics

2) What is the best approach for RCT in a tooth with open apex?

Low concentration NaOCl

High concentration NaOCl

Ultrasonic irrigation

Side-vented needle

3 / 50

Category: Endodontics

3) A premolar with deep caries and no response to tests. What is the next step?

Extraction

RCT

Remove caries and reassess

Take EPT test

4 / 50

Category: Endodontics

4) A tooth with an abscess and no response to tests. What is the best management?

Scaling

Antibiotics

Non-surgical RCT

Surgical RCT

5 / 50

Category: Endodontics

5) What are the steps after RCT for final restoration?

Extraction

CL, post and core, and crown

Mounting, wax-up, preparation, provisional

Preparation and provisional

6 / 50

Category: Endodontics

6) What is the main drawback of using MTA in direct pulp capping (DPC)?

High cost

Potential toxicity

Poor sealing ability

Long setting time

7 / 50

Category: Endodontics

7) A patient has throbbing and dull pain. Which nerve fibers are involved?

Unmyelinated nerve fibers C

Myelinated nerve fibers A

Unmyelinated nerve fibers A

Myelinated nerve fibers B

8 / 50

Category: Endodontics

8) What does bleeding during pulpotomy indicate?

Necrosis

Irreversible pulpitis

Normal

Reversible pulpitis

9 / 50

Category: Endodontics

9) What is the treatment for a separated instrument in the canal?

Extraction

Obturation until the file

Apical surgery

Bypass or retrieve

10 / 50

Category: Endodontics

10) A pediatric patient has horizontal root fracture of primary incisors. What is the management?

Extract both segments

Splint

Extract coronal segment and leave apical

Observe and radiographic follow-up

11 / 50

Category: Endodontics

11) A 7-year-old patient with asymptomatic deep caries has a pulp exposure during caries removal. No bleeding during pulpotomy. Why?

Healthy pulp

Necrotic pulp

Inflamed pulp

It’s normal

12 / 50

Category: Endodontics

12) What is the initial radiograph modality for suspected VRF in a crowned tooth?

CBCT

BT

PA

MRI

13 / 50

Category: Endodontics

13) What material is placed in the clot during revascularization of immature teeth?

Calcium hydroxide

Tribiotic

MTA

Gutta-percha

14 / 50

Category: Endodontics

14) A tooth has an isolated wide pocket, necrotic pulp, and radiolucency. What is the diagnosis?

Primary perio secondary endo

Combined endo-perio lesion

Primary endo secondary perio

Normal

15 / 50

Category: Endodontics

15) How many roots does tooth #27 have?

1

4

3

2

16 / 50

Category: Endodontics

16) What is the likely outcome if a patient undergoes RCT with ferric sulfate?

External tooth resorption

Coronal tooth resorption

Internal tooth resorption

Apical tooth resorption

17 / 50

Category: Endodontics

17) A replanted tooth shows apical resorption with a "scooped out" appearance. What is the management?

Intracanal medicament

Apical surgery and retrograde filling

Extraction

Follow-up

18 / 50

Category: Endodontics

18) What is the most influential factor for successful reimplantation of an avulsed tooth?

Antibiotic

Storage medium

Tetanus

Time

19 / 50

Category: Endodontics

19) A patient with trauma a year ago presents with throbbing pain. What is the best way to prevent complications?

Double side vented needle

Single side vented needle

Chx irrigation

Low concentration NaOCl

20 / 50

Category: Endodontics

20) A separated instrument in the middle third is bypassed. What is the prognosis?

Poor

Good

Questionable

Unpredictable

21 / 50

Category: Endodontics

21) What causes brown precipitation in endodontic treatment?

MTA with saline

Calcium hydroxide with saline

EDTA with sodium hypochlorite

Chx with sodium hypochlorite

22 / 50

Category: Endodontics

22) What type of resorption is associated with intracanal bleaching?

External cervical

Surface

External replacement

Internal

23 / 50

Category: Endodontics

23) What is the management for primary endo secondary perio?

RCT only

RCT then perio treatment

Perio then RCT

Perio only

24 / 50

Category: Endodontics

24) What is the difference between crown-down and step-back techniques?

Coronal flare and low torsional flexure

Less time

Fewer instruments

More tissue removal

25 / 50

Category: Endodontics

25) What is the treatment for a tooth with open apex?

Pulp revascularization

Apexification

Apexogenesis

RCT

26 / 50

Category: Endodontics

26) What is the suitable obturation technique for internal resorption?

Warm vertical compaction

Carrier-based

Cold lateral condensation

Single cone

27 / 50

Category: Endodontics

27) A patient with a complicated fracture and open apex. What is the best treatment?

RCT

Extraction

DPC

Pulpectomy

28 / 50

Category: Endodontics

28) What type of resorption is seen in a tooth with a very short root 20 years post-trauma?

External cervical

Replacement resorption

Internal

Surface resorption

29 / 50

Category: Endodontics

29) How long should an alveolar fracture be splinted?

4 weeks

1-2 weeks

7-8 weeks

2-3 weeks

30 / 50

Category: Endodontics

30) What are the components of RC-Prep?

EDTA, NaOCl, glycol

EDTA, saline, glycol

EDTA, urea peroxide, glycol

EDTA, Ca(OH)2, glycol

31 / 50

Category: Endodontics

31) An 11-year-old with an avulsed tooth for over 60 minutes. What is the best action?

Place in stannous fluoride

Place in sodium fluoride

Reimplant immediately

Place in sodium hypochlorite

32 / 50

Category: Endodontics

32) What happens to the permanent tooth after central intrusion?

Hyperplasia of the root

Buccally displaced

Devitalization

Palatally displaced

33 / 50

Category: Endodontics

33) Where is the second canal located in a lower central incisor?

Labial

Distal

Mesial

Lingual

34 / 50

Category: Endodontics

34) How long should a dentoalveolar fracture be splinted?

2 weeks

4 weeks

6 weeks

8 weeks

35 / 50

Category: Endodontics

35) Calcium hydroxide extruded beyond the apex with no symptoms. What is the management?

Follow-up

Extraction

RCT

Surgical removal

36 / 50

Category: Endodontics

36) What is the name of a fracture involving dentin, cementum, and pulp?

Root fracture

Uncomplicated

Enamel fracture

Complicated

37 / 50

Category: Endodontics

37) Which material has potential toxicity?

Calcium hydroxide

Ferric sulfate

MTA

Formocresol

38 / 50

Category: Endodontics

38) What is the most commonly reported dental trauma in children?

Root fracture

Uncomplicated crown fracture

Avulsion

Complicated crown fracture

39 / 50

Category: Endodontics

39) What does electric pulp testing (EPT) indicate?

Pulp vitality

Presence of infection

Severity of pulp inflammation

Tooth mobility

40 / 50

Category: Endodontics

40) What is the management for instruments pushed beyond the apex?

Reattempt retrieval

Extraction

Follow-up

Surgical

41 / 50

Category: Endodontics

41) What is the recommended isolation method for RCT in an asthmatic patient?

Rubber dam then cotton rolls

Cotton rolls then rubber dam

Rubber dam

Cotton rolls

42 / 50

Category: Endodontics

42) What is the best prognosis for horizontal root fractures?

Apical

Cervical

Coronal

Middle

43 / 50

Category: Endodontics

43) What is the best treatment for a 9-year-old with pulp exposure 3 hours post-trauma?

Pulpectomy

DPC

RCT

Pulpotomy

44 / 50

Category: Endodontics

44) What is the best treatment for a 9-year-old with 3-4mm intrusion?

Extraction

Follow-up

Ortho reposition

RCT

45 / 50

Category: Endodontics

45) Which endodontic instrument is the most flexible?

K file

H file

Reamer

Barbed broach

46 / 50

Category: Endodontics

46) A tooth with a 7mm pocket and no pain. What is the treatment?

Apical surgery

Amputation

Extraction

Non-surgical RCT

47 / 50

Category: Endodontics

47) What is the best obturation technique?

Warm lateral condensation

Single cone

Carries

Cold lateral condensation

48 / 50

Category: Endodontics

48) What is the best management for a 1/3 crown fracture with normal pulpal response?

Crown

Extraction

Elective endo and post and core

Composite build-up

49 / 50

Category: Endodontics

49) A tooth with a metal crown responds to EPT but not cold. What is the diagnosis?

Necrotic

Irreversible

Normal

Reversible

50 / 50

Category: Endodontics

50) What is the treatment for pulp exposure after 3 days?

RCT

Partial pulpotomy with MTA

Pulpotomy

Cervical pulpotomy

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