Week 6 Placing and Finishing Composite

Question 1

Flame

Answer 1

Used to contour surfaces, smooth margins, and remove flash
Use smooth, deliberate, intermittent brush strokes.
Stay in constant motion while engaging the surface to prevent gouging the tooth,

Question 2

Egg or Football

Answer 2

Most often used on the lingual and occlusal surfaces
Use existing tooth structure to guide the bur
Maintain smooth, intermittent brush strokes over the restored surface.

Question 3

Finishing discs, points, and cups

Answer 3

Finishing disks and cups are useful on the facial surfaces of anterior teeth
Finishing points and cups are used on lingual surfaces of anterior teeth.
Start from tooth structure and move over the surface of the restoration

Question 4

Polishing the composite restoration

Answer 4

The process of polishing a composite restoration is similar to finishing except for the use of fine particle abrasives, less material is removed, and a lustrous surface results.

Question 5

Polishing the proximal surfaces

Answer 5

Fine abrasive disks and strips or rubber polishing disks, points, and cups are used
Use smooth, deliberate, intermittent brush strokes
Start from tooth structure and move over the surface of the restoration to produce a surface with a smooth and high luster.

Question 6

Polishing the occlusal surfaces

Answer 6

Points or cups are used for the final polishing procedure.

Question 7

Evaluate the polishing procedure

Answer 7

Use mouth mirror, and explorer to evaluate the restoration.
Should appear smooth and highly polished
Should have a lustrous shine
There should be not damage to the adjacent tooth.

Question 8

Polishing facial and lingual surfaces

Answer 8

Disks, points or cups are used for the final polishing procedure.

Question 9

When composite restorations are properly maintained…

Answer 9

there will be less plaque retention, and a lower incidence of periodontal disease and caries.

Question 10

The primary purpose of finishing and polishing composite restorations is to create a restoration that is smooth, uniform, and easily cleaned by the patient.

Answer 10

true

Question 11

Advantages of finishing and polishing composites

Answer 11

Smooth, undetectable margins
Plaque-resistant surface
Healthier gingival tissues
Increased longevity
Enhanced esthetics
Proper contours

Question 12

Indication for finishing and polishing

Answer 12

Overextension or flash
Premature occlusal contact
Overhang
Limited stain
Limited recontouring of the anatomy
Small chips or defects

Question 13

Indication for repair or replacement

Answer 13

Gross overextension or overhang
Open margin
Fracture
Extensive stain
Recurrent caries
Open proximal contact
Larger defects

Question 14

Composites are indicated for Class I, II and class V defects.

Answer 14

true

Question 15

Resin composite is the most common alternative to dental amalgam, but…

Answer 15

there are studies that report that composite restorations have a more recurrent caries, higher failure rates and increased frequency of replacement.

Question 16

Pros and cons of composite

Answer 16

Advantages
* Esthetics
* Conservation of tooth structure
* Adhesion to tooth structure
* Low thermal conductivity and no galvanic reaction
* Can be polished at the same appointment
Disadvantages
* Technique sensitive
* Rubber dam usually required
* More expensive
* Polymerization shrinkage
* Secondary caries
* Postoperative sensitivity
* Decrease wear resistance

Question 17

• All high speed instruments must be used with water spray.

Answer 17

true