Test Your Knowledge - Free MCQ PRACTICE
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. A glossy finish is best retained on a:
A. Microfilled composite resin restoration
B. Macrofilled resin restoration.
C. Hybrid composite resin restoration.
D. Fiber reinforced composite resin restoration

2. In 6 years child with bilateral loss of deciduous molars & the anterior teeth not erupted yet , the space maintainer for choice is:
A. Lingual arch.
B. Bilateral band and loop.
C. Bilateral band and loop with distal shoe.
D. Removable partial denture

3. In primary teeth, pathologic changes in radiographs are always seen in:
A. Periapical area.
B. Furcation area
C. Alveolar crest.
D. At base of developing teeth

4. 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

5. Hemisection means:
A. Surgical removal of the apical portion of the root.
B. Removal of one or more roots.
C. The root and the crown are cut lengthwise.
D. None

6. Bass brushing has the advantage of the bristles enters in the cervical area , and it is recommended for all patients:
A. Both statements are true.
B. Both statements are false.
C. First is true ,second is wrong.
D. First is wrong , second is true

7. Currently the only effective preventive measure for periodontal disease, apart from limited use of antiseptic solutions, is:
A. Regular and rough removal of dental plaque.
B. Salt fluoridation.
C. Dental health education
D. None of these

8. Cementum in cervical 2/3 have:
A. A Cellular intrinsic fiber.
B. A Cellular extrinsic fiber.
C. Cellular mixed fibers.
D. Intermediate cementum

9. Overhanging restoration margins should be removed because:
A. It provides ideal location for plaque accumulation.
B. It tears the gingival fibers leading to attachment loss.
C. Its removal permits more effective plaque control.
D. A and C

10. The basic difference between K files and reamers is:
A. The number of spirals or flutes per unit length.
B. The geometric cross section
C. The depth of flutes.
D. The direction of the spirals

11. After trauma a tooth become yellowish in color, this is due to:
A. Necrotic pulp.
B. Irreversible pulpitis.
C. Pulp is partially or completely obliterated
D. Hemorrhage in the pulp

12. Traumatically fractured crown of central incisor in an 8-years-old child with pulp exposure (more than 1 mm) half hour ago, medical history is non- contributory and the tooth is not displaced. What is your management:
A. Endodontics-pulpectomy and obturation.
B. Direct pulpcap with caoh and composite.
C. Caoh pulpotomy
D. Total extirpation of pulp and CaOH

13. Best treatment of choice for carious exposure of a primary molar in a 3 year old child who complain of toothache during and after food taking:
A. Direct pulp capping with caoh.
B. Direct pulp capping with zao paste.
C. Formocresol pulpotomy
D. Caoh pulpotomy

14. Which intracanal medicament causes protein coagulation:
A. Formocresol
B. Naocl.
C. Wad
D. Hydrogen peroxide

15. What is the cavo-surface angle of prep for amalgam restoration:
A. 30 degree
B. 60 degree
C. 90 degree
D. 130 degree

16. Indirect composite inlay has the following advantages over the direct composite EXCEPT:
A. Efficient polymerization.
B. Good contact proximally.
C. Gingival seal.
D. Price

17. 17.Dental plaque composed mainly of:
A. Bacteria.
B. Inorganic materials.
C. Food
D. None of these

18. Hyperemia of the pulp result in :
A. Trauma of occlusion.
B. Pain of short duration
C. Radiographic changes.
D. All of above

19. 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

20. When polishing the amalgam restoration:
A. Avoid heat generation by using wet polishing paste.
B. Wait 24 hours.
C. A and B
D. Neither of these

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