Test Your Knowledge - Free MCQ PRACTICE
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DRIVINGTEST
A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. If the maxillary first molar is found to have four, the fourth canal is likely found:
A. In the disto-buccal root.
B. In the mesio-buccal root
C. In the palatal root.
D. None of these

2. A patient present in severe pain. The periapical area over the involved tooth is inflamed and swollen. The tooth is mobile and depressible in its socket with a diffused radiolucency. The diagnosis is:
A. Acute apical periodontitis.
B. Chronic apical periodontitis.
C. Acute exacerbation of chronic apical periodontitis.
D. Abscess

3. Diagnosis prior to RCT should always be based on:
A. Good medical and dental history.
B. Proper clinical examination.
C. A periapical radiographs.
D. All of these

4. The normal response of a inflamed pulp to the thermal testing is:
A. No response.
B. Lingering painful response.
C. Hypersensitive painful response.
D. Painful response that disappears soon after stimulus is removed

5. Which of the following may be used to disinfect gutta percha points
A. Boiling.
B. Autoclave.
C. Chemical solutions
D. Dry heat sterilization

6. Pulp stone can be the following EXCEPT:
A. Present freely in the pulp.
B. Cause discomfort & pain to the patient
C. In radiographs,Small spheroidal radiopaque.
D. False stone occurs due to dystrophic dentin

7. If tooth or root is pushed during surgical extraction into Max Sinus:
A. Leave it and inform the patient
B. Remove it as soon as possible
C. Follow the Pt for 3 months.
D. None of these

8. Spontaneous pulpal pain is indicative of:
A. Reversible pulpitis.
B. Irreversible pulpitis
C. Hyperplastic pulp.
D. Atrophic pulp

9. What is the estimated incubation period of HIV infection:
A. 6 months.
B. 3 years.
C. 6 years.
D. 10 years

10. A 20 years old male patient came with severe pain on chewing related to lower molars. Intraoral examination reveals no caries, good oral hygiene, no change in radiograph. PT give history of bridge cementation 3 days ago. Diagnosis:
A. Pulp necrosis.
B. Acute apical periodontitis
C. Chronic apical abscess.
D. None of these

11. To disinfect gutta percha points use:
A. Hydrogen peroxide
B. 5.2% Sodium hypochlorite
C. CHX
D. All of these

12. Reparative dentine:
A. Second dentine.
B. Formed as dentine Bridge above the pulp
C. Highly tubular dentine and it is detective from first dentine.
D. Sclerosing dentine with less permeability

13. Actual destruction of micro-organisms in the root canal is attributed mainly to:
A. Proper antibiotic thereby.
B. Effective use of medicament.
C. Mechanical preparation and irrigation of the canal
D. None of these

14. Asymptomatic tooth has a necrotic pulp, a broken lamina dura, and circumscribed radiolucency of long duration. The periradicular diagnosis:
A. Acute apical periodontitis.
B. Chronic apical periodontitis
C. Acute exacerbation of chronic apical periodontitis.
D. Abscess

15. Amount of G.P should after post preparation:
A. 1 mm.
B. 4-5 mm
C. 10 mm.
D. None of these

16. The irrigation solution is good because:
A. Lubricate the canals.
B. Flushes the debris and minimizing the No. of micro organism.
C. None of these.
D. All of these

17. Lesion similar to Endo Lesion:
A. Hyperparathyroidism
B. Initial stage of cemental dysplasia
C. Ossifying Fibroma
D. Dentigerous cyst

18. Endomethasone is a root canal sealer that:
A. Dissolve in fluid so it weaken the root canal filling.
B. Very toxic contain formaldehyde.
C. Contain corticosteroids.
D. All the above

19. The root canal treated teeth has the best prognosis when the root canal is instrumented and obturated:
A. To the radiograph apex.
B. 1 mm beyond the radiograph apex.
C. 1-2 mm short of the radiograph apex
D. 3-4 mm short of the radiograph apex

20. Bacteria in root canal Pathosis:
A. Mixed anaerobe and aerobe
B. Single obligate anaerobe.
C. Aerobic.
D. None of these

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