Endo. Cons Revision #3

1. Canal which is most difficult to locate in a maxillary 1" molar is:

Palatal

Both palatal and distobuccal

Mesiobuccal

Distobuccal

Question 1 of 20

2. Which perforation location has the best prognosis?

Chamber floor

Coronal third of root

Apical third of root

Middle third of root

Question 2 of 20

3. Triturating a dental amalgam will _____.

Dissolve the alloy particles in mercury

Coat the alloy particles with mercury

Reduce the size of the alloy particles

Reduce the crystal sizes as they form

Question 3 of 20

4. Which of the following teeth has the most consistent number of canal(s)?

Maxillary canine

Mandibular canine

Mandibular premolar

Mandibular incisor

Question 4 of 20

5. Which of the following teeth is most likely to have a curved root?

Maxillary lateral incisor

Maxillary canine

Maxillary central incisor

Mandibular central incisor

Question 5 of 20

6. Which of the following is not a risk when using air as a coolant cutting with high speeds

Tooth may be dehydrated

Converging proximal walls

Tooth may become hypersensitive

Pulp may be cooled below the danger point

Question 6 of 20

7. Speed of medium category rotary instruments:

20,000-45,000 rpm

3000-6000 rpm

200-3000 rpm

45,000-100,000 rpm

Question 7 of 20

8. The endodontic access form is triangular in shape for which of the following teeth?

Maxillary central incisor, maxillary first molar, and maxillary second molar

Maxillary canine, maxillary first premolar, and maxillary lateral incisor

Maxillary central incisor, mandibular central incisor, and maxillary lateral incisor

Mandibular central incisor, maxillary first molar, and maxillary first premolar

Question 8 of 20

9. The outline form of the access cavity of which of the following teeth is trapezoid in shape?

Maxillary first molar and mandibular first molar

Maxillary first molar and maxillary second premolar

Mandibular first molar and mandibular second molar

Mandibular first molar and maxillary second molar

Question 9 of 20

10. A primary tooth has an exposed vital pulp. The tooth has less than two-third of its root remaining and caries perforating the furcation. There is a succedaneous tooth forming normally apical to the tooth. The treatment of choice for this tooth is:

Pulp cap

Extraction

Pulpotomy

Indirect pulp cap

Question 10 of 20

11. Tooth with maximum accessory canals attached to furcation area:

Maxillary 2nd molar

Maxillary 2nd premolar

Maxillary premolar

Maxillary 1st molar

Question 11 of 20

12. True about inflammation confined to pulp:

Increased vascular permeability

Vasoconstriction

Stagnation of pulp vasculature

Increased vascularity

Question 12 of 20

13. A radiopaque area is observed in the dentin underlying a three month old Class II amalgam restoration. Which of the following bases was used in the restoration

Zinc Oxyphosphate cement

Zinc oxide and eugenol

Glass ionomer cement

Calcium hydroxide

Question 13 of 20

14. Rool-filling materials must be

biocompatible.

rigid.

low cost.

easily dissolved.

Question 14 of 20

15. What should be the first treatment for an acutely avulsed tooth.

Immediate endodontic treatment and reimplant

Sterilize the root and reimplant

Pulp protection

Gently replace with finger using light pressure, take radiograph and splint

Question 15 of 20

16. Why is etchant preferred as a gel instead of solution

To allow better control over placement

To make it easier to wash off

To make identification easier

To enhance and concentrate the action of the acid

Question 16 of 20

17. Apicoectomy procedure is done at what magnification under endodontic microscope

4-8x

14-26x

8-14x

26-30x

Question 17 of 20

18. The occlusal portion of the wax pattern is usually carved

First

After the proximal surfaces

After the faciolingual surface

Last

Question 18 of 20

19. Which of the following results may be expected following surgery when both the buccal and lingual cortical plates have been lost?

Ankylosis.

Normal bone regeneration.

Scar tissue formation.

Osteosclerosis.

Question 19 of 20

20. Porcelain laminate veneers get maximum retention through

Acid etching, sialanization composite resin

Composite resin, acid etching

Composite resin, acid etching and restoration

Acid etching, sialanization and restoration

Question 20 of 20