Endo. Cons Revision #4

1. True about inflammation confined to pulp:

Stagnation of pulp vasculature

Increased vascular permeability

Vasoconstriction

Increased vascularity

Question 1 of 20

2. Following obturation, sealer was left in the coronal pulp chamber of tooth #9, and the conservative access was filled with a composite restoration. This could most likely result in:

Inadequate coronal seal

Root canal failure

Vertical root fracture

Discoloration of the tooth

Question 2 of 20

3. To achieve the objectives of vertical condensation, it is necessary to produce

a straight canal.

a tapering conical canal.

a cylindrical canal.

a conical canal.

Question 3 of 20

4. Skirts are used in:

Class 2 amalgam

Direct filling gold

Cast metal inlay

Ceramic inlay

Question 4 of 20

5. The crown-down preparation advocates beginning radicular access with

a larger instrument first.

removal of the clinical crown.

a smaller instrument first.

precurvaturc of a smaller instrument.

Question 5 of 20

6. 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:

Cleaning and conventional RCT

Cleaning and Apexification

Formocresol Pulpotomy

Pulp capping

Question 6 of 20

7. An 8-year-old patient presents to your office for an emergency visit with a traumatic exposure of tooth #9. The treatment of choice for this patient is

Root-end closure procedure/apexification

Partial pulpectomy

Vital pulp therapy/apexogenesis

Traditional root canal therapy

Question 7 of 20

8. All of the following are factors in discoloration of tooth following a big amalgam filling except:

Better marginal adaptation

Good condensation

Presence of voids

Association with root surface

Question 8 of 20

9. In vertical condensation technique with thermoplasticized GP, which of the following is done:

3 dimensions Solvent softening and warm condensation

Choose master cone and cut with warm instrument

Softening by heat and chemicals

GP is softened by heat and condensed to fill the lateral canals-in all

Question 9 of 20

10. Silver alloy used for inlay preparation in primary teeth:

Peritectic

Eutectic

Sterling

High copper

Question 10 of 20

11. When carving a Class I amalgam restoration, which statement is false?

Carving may be made easier by waiting 1 or 2 minutes after condensation before it is started.

Do not carve deep occlusal anatomy.

The blade of the discoid carver should move parallel to the margins resting on the partially set amalgam.

The carved amalgam outline should coincide with the cavosurface margins.

Question 11 of 20

12. Cells in asymptomatic apical periodontitis lesions:

Derivatives of disintegrated cell membrane

Osteoclasts

Foamy macrophages & neutrophils

Macrophages & lymphocytes

Question 12 of 20

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

Pulp may be cooled below the danger point

Converging proximal walls

Tooth may become hypersensitive

Tooth may be dehydrated

Question 13 of 20

14. The primary contraindication(s) for the use of a composite restoration is (are) _____.

Occlusal factors

Extension onto the root surface

Inability to isolate the operating area

Nonesthetic areas

Question 14 of 20

15. During a routine radiographic evaluation, you notice bone loss extending from the cementoenamel junction to the apex of tooth #21. Further evaluation reveals that probing depths are above normal limits all around the tooth. However, at one point, the probe drops precipitously to an even greater depth. Vitality test is negative. This patient may require:

Endodontic treatment only

Periodontic treatment followed by endodontic treatment

Extensive periodontal treatment followed by vitality reassessmen

Endodontic treatment followed by periodontic treatment

Question 15 of 20

16. The outline form of a cavity preparation is defined as:

"that form the cavity takes to resist the forces of mastication"

"the shape or form of the cavity on the surface of the tooth"

"that form the cavity takes to resist dislodgement or displacement of the restoration"

"the shape or form of the preparation after carious dentin has been excavated"

Question 16 of 20

17. Root canal therapy is completed on a mandibular first molar and closed temporarily with a cotton pellet and a temporary sealing material, withplans for a definitive restoration to be placed as soon as possible. What is the most important factor in ensuring the success of the procedure?

Marginal integrity of definitive restoration

Type of definitive restoration

Placement of a post

Type of temporary sealing material

Question 17 of 20

18. Which of the following is not true regarding a K file as compared to a reamer:

Used in push & pull motion

Has a square cross section

It contains more flute than reamers

Is more flexible than a reamer

Question 18 of 20

19. Which cavities can involve only posterior teeth

class II

class V

class I

class VI

Question 19 of 20

20. Principal nerve fibres in Pulp are:

Unmyelinated C fibers and myelinated A fibers

B and C fibers

Myelinated C fibers and unmyelinated A fibers

A J3 and M fibers only

Question 20 of 20