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. What is the estimated incubation period of HIV infection:
A. 6 months.
B. 3 years.
C. 6 years.
D. 10 years
2. Lesion similar to Endo Lesion:
A. Hyperparathyroidism
B. Initial stage of cemental dysplasia
C. Ossifying Fibroma
D. Dentigerous cyst
3. The accesses opening for a maxillary premolar is most frequently:
A. Oval
B. Square.
C. Triangular.
D. None of these
4. Single rooted anterior teeth has endodontic treatment is best treated by:
A. Casted post and core
B. Performed post and composite.
C. Performed post and amalgam.
D. Composite post and core
5. Sensitivity to palpation and percussion indicates:
A. Reversible pulpitis.
B. Irreversible pulpitis.
C. Hyperplastic pulpitis.
D. Inflammation of the periradicular tissues
6. Dentin permeability
A. Decreases with the increase of cavity preparation.
B. Increase when sclerotic dentin develops under a carious lesion.
C. Increase with smear layer.
D. Bacterial toxins can pass through before the actual penetration of bacteria
7. Bacteria in root canal Pathosis:
A. Mixed anaerobe and aerobe
B. Single obligate anaerobe.
C. Aerobic.
D. None of these
8. 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
9. 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
10. Which of the following may be used to disinfect gutta percha points
A. Boiling.
B. Autoclave.
C. Chemical solutions
D. Dry heat sterilization
11. Which of the following endodontic failure may be retreated only with surgery:
A. Missed major canal.
B. Persistent interappointment pain.
C. Past and core
D. Short canal filling
12. 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
13. The correct access cavity preparation for the mandibular second molar is:
A. Oval.
B. Quadrilateral.
C. Round.
D. Triangular
14. What is the basis for current endodontic therapy of a periapical lesion:
A. Due to rich collateral circulation system, the perpical area usually heals despite the condition of the root canal.
B. If the source of periapical irritation is removed, the potential for periapical healing is good.
C. Strong intracanal medications are required to sterilized the canal and periapical area to promote healing.
D. Periapical lesions, especially apical cyst, must be treated by surgical intervention
15. Teeth that are discolored as a result of internal resorption of the pulp may turn:
A. Yellow.
B. Dark brown.
C. Pink
D. Green
16. Pulpal pain may NOT be referred from:
A. The right maxilla to the left maxilla
B. The third molar to the ear.
C. A max molar to the sinus.
D. A max cuspid to ear
17. 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
18. The preferred material used in Apexification is:
A. Zinc Phosphate cement.
B. Zinc Polycarboxylate cement.
C. Calcium hydroxide
D. Dycal
19. A patient with severe periradicular pain 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
20. 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
Public Hospital 554/7 New Anaj Mandi, Fatehabad 125050 M: 9810570740, 9810571993
Tel: 01667221011, 9810570740, 9810571993 facebook.com/doctorkc