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. The pH of the calcium hydroxide is:
A. 7.2
B. 12
C. 19
D. 5.5
2. The accesses opening for a maxillary premolar is most frequently:
A. Oval
B. Square.
C. Triangular.
D. None of these
3. It is recommended to avoid an intraligamental injection when the planned dental treatment is:
A. Pulp extirpation.
B. Pulpotomy
C. Full crown preparation.
D. A and B
4. The preferred material used in Apexification is:
A. Zinc Phosphate cement.
B. Zinc Polycarboxylate cement.
C. Calcium hydroxide
D. Dycal
5. The normal response of a vital pulp to the electric pulp testing is:
A. No response.
B. Higher than that of the control teeth.
C. Lower than that of the control teeth.
D. In a range similar to that of the control teeth
6. Actual destruction of the micro organism in root canal attributed mainly to:
A. Proper antibiotic therapy.
B. Effective use of medicaments.
C. Natural defenses in healthy person.
D. Mechanical preparation and irrigation of the canal
7. Which of the following may be used to disinfect gutta percha points
A. Boiling.
B. Autoclave.
C. Chemical solutions
D. Dry heat sterilization
8. Sensitivity to palpation and percussion indicates:
A. Reversible pulpitis.
B. Irreversible pulpitis.
C. Hyperplastic pulpitis.
D. Inflammation of the periradicular tissues
9. Cause that master G.P not reach working length although it is the same size of last file:
A. Dentin debris.
B. Ledge formation.
C. A and B
D. None of these
10. 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
11. 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
12. Which of the following failure may be treated non-surgically:
A. Post filling that has removed
B. Severe apical perforation
C. Very narrow canal with a periapical lesion and the apex cannot be reached.
D. None of these
13. Apexification is procedure that:
A. Finds the most apical stop of the Gutta-Percha in RCT.
B. Induce the formation of a mineral barrier in the apical region of incompletely root
C. Is new in the endodontic field.
D. Involves the surgical removal of the apical region of the root and placement of a retrograde filling material
14. The correct access cavity preparation for the mandibular second molar is:
A. Oval.
B. Quadrilateral.
C. Round.
D. Triangular
15. 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
16. Which one of the following is a disadvantage of autoclaving Endo instruments:
A. It can dull the sharp edges of instruments-cause corrosion- clean should done before
B. All forms of bacteria are not destroyed by it.
C. Compared to other technique it takes too long to sterilize.
D. None of these
17. Spontaneous pulpal pain is indicative of:
A. Reversible pulpitis.
B. Irreversible pulpitis
C. Hyperplastic pulp.
D. Atrophic pulp
18. 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
19. 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
20. Among the reasons that molar teeth are more difficult to treat It Endo than anterior teeth:
A. Molar have more complex canal configuration.
B. Molar tend to have greater canal curvature.
C. A and B
D. None of these
Dr K Chaudhry 5 Alpha Inmternational City, Fatehabad 125050 M: 9810570740, 9810571993facebook.com/doctorkc