Endo. Cons Revision #1

1. With the cone moved to the distal and facing towards the mesial, the mesiobuccal root of the first molar

Appears to move lingually.

Will be projected distally on the film.

Will not move.

Will be projected mesially on the film.

Question 1 of 20

2. The best way to carve amalgam back to occlusal cavosurface margin is to _____.

Make deep pits and grooves

Use visual magnification

Use a round finishing bur after the amalgam has set

Use a discoid-cleoid instrument guided by the adjacent unprepared enamel

Question 2 of 20

3. The most effective method of diagnosing the origin of fistula is:

Visually locating the closest tooth to the fistula

Periodontal probing of all teeth in the area

Tracing the fistula with a gutta percha point in conjunction with the radiograph

Percussing all of the teeth in the area of the fistula

Question 3 of 20

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

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

Immediate endodontic treatment and reimplant

Pulp protection

Sterilize the root and reimplant

Question 4 of 20

5. Which of the following statements is not true regarding bonding systems?

One-bottle dentin bonding systems may be simpler but are not necessarily better.

Enamel bonding occurs quickly, is strong, and is long-lasting.

Even though dentin bonding occurs slowly, it results in a stronger bond than to enamel.

Dentin bonding is still variable because of factors such as sclerosis, tubule size, and tubule location.

Question 5 of 20

6. Which of the following statement(s) is(are) true regarding treatment of a tooth presenting with a sinus tract?

The sinus tract should heal in 2 to 4 weeks after conventional root canal therapy.

All of the above choices are true.

Antibiotics are not needed.

Treat with conventional root canal therapy.

Question 6 of 20

7. Which of the following can be viewed on a conventional radiograph?

Buccal curvature of roots

Gingival fibers

Periodontal ligament

Calcification of canals

Question 7 of 20

8. In the inflammatory process, which of the following cell types function as phagocytes?

Neutrophils and macrophages.

Macrophages and lymphocytes.

Plasma cells and basophils.

Lymphocytes and neutrophils.

Question 8 of 20

9. Ideal property of a root canal sealer is:

Circular in morphology.

Fill the space between solid core material and pulp canal

Seals and fills lateral canal

Extrudes beyond the apical foramen.

Question 9 of 20

10. Interstitial denticles are those denticles that are

Entirely surrounded by secondary dentin

Continuous with the dentinal wall

Lying free in the pulp

Having dentinal tubules within them

Question 10 of 20

11. Bonding of resins to dentin is best described as involving _____.

Mechanical interlocking

Covalent bonding

Ionic bonding

Van der Waals forces

Question 11 of 20

12. Which of the following statements about indirect pulp caps is false?

A liner is generally recommended in the excavation.

The prognosis of indirect pulp cap treatment is poorer than that of direct pulp caps.

Some leathery caries may be left in the preparation.

The operator should wait at least 6 to 8 weeks before re-entry (if then).

Question 12 of 20

13. Maintenance of pulp vitality in a fracture of crown with pulp exposure fracture will

Improves prognosis in immature teeth

Improves prognosis in mature teeth

Improves prognosis when done before treatment

Does not affect prognosis

Question 13 of 20

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

Do not carve deep occlusal anatomy.

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

The carved amalgam outline should coincide with the cavosurface margins.

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

Question 14 of 20

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

Primary cutting edge

Handle

Hand

Secondary cutting edge

Question 15 of 20

16. A 35-year-old woman was in a horse back riding accident less than 1 hour ago. On clinical examination, the tooth is painful to palpation and has slight mobility. The tooth is fractured in the occlusal third and there appears to be no exposure. A periapical radiograph reveals fracture above the pulpal space and no periapical radiolucency. The treatment of choice for the asymptomatic maxillary central incisor is:

RCT in the occlusal segment and surgical removal of the apical segment

RCT in the occlusal segment and 2 weeks of passive splinting

No treatment at this time and continued observation

Root canal treatment in the occlusal segment

Question 16 of 20

17. Pregnant patients in the first trimester

Are not at risk from pharmacologic intervention.

Are not candidates for electronic apex locators.

Should delay use of x-ray until the second trimester.

Should receive the normal x-ray dose for endodontic therapy.

Question 17 of 20

18. In class II cavity preparation the axial depth of gingival floor should be a minimum of:

Gingival and pulpal floors should be at same level

0.5 mm

1.5 mm

0.8 mm

Question 18 of 20

19. Time of application of glutaraldehyde pellet to pulp stump in glutaraldehyde pulpotomy is:

4 minutes

2 minutes

5 seconds

30 seconds

Question 19 of 20

20. Which of the following is not suggested as irrigants during root canal therapy

Sodium hypochlorite

Hydrogen peroxide

Urea peroxide (Gly-Oxide)

Calcium hydroxide

Question 20 of 20