Endo. Cons Revision #5

1. The ideal amount of time from placing an indirect pulp cap until reopening the tooth to remove the remaining decay is:

Never, unless the tooth becomes symptomatic there is no need for further treatment

1 year

1 month

3 - 4 months

Question 1 of 20

2. An 8 year old boy had trauma to permanent incisor 1 year back. He reports for treatment. The tooth is non responsive to electric pulp testing and there is no Periapical lesion. Management is:

Pulp capping

Cleaning and conventional RCT

Formocresol Pulpotomy

Cleaning and Apexification

Question 2 of 20

3. Maximum injury to protective layer is during

Concussion

Luxation

Intrusion

Extrusion

Question 3 of 20

4. Long-term administration of clindamycin is contraindicated because of the risk of developing

hypersensitivity.

urticaria.

photosensitivity.

severe gastrointestinal conditions.

Question 4 of 20

5. ___________require endodontic treatment more often than any other tooth,________ while have the highest endodontic failure rate.

Maxillary first molars, mandibular first molars

Mandibular first molars, maxillary second molars

Mandibular first molars, maxillary first molars

Maxillary second molars, mandibular first molars

Question 5 of 20

6. Prior to reimplantation, tooth s soaked in 3% citric acid. This is done to:

Remove the PDL

Disinfect the tooth

Increase surface reactivity

Etch the surface

Question 6 of 20

7. The shank of a dental hand cutting instrument joints the blade to the

Hand

Primary cutting edge

Handle

Secondary cutting edge

Question 7 of 20

8. A 7-year-old boy arrives at the office with a complaint that tooth #8 is draining pus into his mouth. The tooth had been traumatized earlier. The vitality tests reveal no response. What is the treatment of choice?

It is only necessary to give the child analgesics and antibiotics for pain and infection

Extraction

Apexification

Apexogenesis

Question 8 of 20

9. Pu1pal medication and thermal protection is given

Cement base (1-2mm)

Cement liner (0.2-1mm)

Suspension liner (20-25um)

Solution liner (2-50um)

Question 9 of 20

10. The retention-resistance form of a Class II inlay cavity is dependent upon all of the following, except

Occlusal dovetail

Proximal box form

Flat gingival and pulpal walls

Gingival bevels

Question 10 of 20

11. While obturation selection of master cone is based on:

The cone must bind loosely in the canal and reach within 1 mm of the radiographic apex

The cone must fit well in the canal and be at the radiographic apex

The cone must fit well in the apical third of the canal and be within 1mm of the radiographic apex

The cone should have a wiggly appearance and reach within 1mm of radiographic apex

Question 11 of 20

12. While restoring a cavity, C factor is associated with:

Condensing force for amalgam

Carving pattern for amalgam

Polymerization shrinkage

Curvature of root

Question 12 of 20

13. Affected dentin differs from infected dentin in that, it has

A soft leathery texture

Not been invaded by microorganisms

Been calcified

Been invaded by microorganisms

Question 13 of 20

14. The main objective of cavity preparation is to

Restore function

Restore occlusion

Treat caries

Prevent caries

Question 14 of 20

15. A full cast crown which fails to seat properly and is rocking. This could be due to all of the following, except

Removal of a portion of the stone die when a bubble was removed from the master cast

A void on the inner occlusal surface of the casting

A bubble on the master cast in the buccal cusp area

Investment incompletely removed from the die

Question 15 of 20

16. According to the ADA system of numbering teeth, tooth number 19 would be A permanent

Mandibular left first molar

Maxillary left central incisor

Mandibular left canine

Maxillary right second bicuspid

Question 16 of 20

17. To avoid external transportation of the root canal

use vigorous instrumentation.

precurve instruments.

avoid the use of sodium hypochlorite.

use large instruments.

Question 17 of 20

18. In Periapical index (PAI), Grade 3 is defined as:

Severe apical periodontitis, with exacerbating features

Small changes in bone structure with no demineralization

Apical periodontitis with well-defined radiolucent area

Changes in bone structure with some diffuse demineralization

Question 18 of 20

19. A dentin conditioner

Thinly coats the collagen fibrils with resin

Bonds the composite

Removes the smear layer

Raises surface free energy of dentin

Question 19 of 20

20. Which of the following types and concentrations of fluoride should be recommended for home-care custom tray use by a patient with head and neck cancer

1.23% acidulated phosphate fluoride, 0.4% stannous fluoride, and 1 % neutral sodium fluoride

1.23% acidulated phosphate fluoride and 1 % neutral sodium fluoride

0.4% stannous fluoride and 1 % neutral sodium fluoride

0.4% stannous fluoride and 1.23% acidulated phosphate fluoride

Question 20 of 20