SCALERS

Question 1

Which type of hand scaler can be used for scaling supra and sub for the entire mouth?
- 90 degree angle

Answer 1

universal curettes

Question 2

What angle do site specific curettes need to be placed to the root surface at?

Answer 2

70 degrees

Question 3

Which type of site specific curette is the following?
- designed to provide better access to root surfaces in deep pockets
- feature long shanks and unique blades, some with bends improving access to complex root surface morphology
- lower the number, the more anterior they are to be used

Answer 3

gracey curettes

Question 4

Which curettes are used to scale all tooth surfaces in the anterior quadrants?

Answer 4

• 1/2
• 3/4
• 5/6

Question 5

Which curettes are used to scale the buccal and lingual aspects of the teeth in the posterior quadrants?

Answer 5

• 7/8
• 9/10

Question 6

Which curettes are used to scale the mesial aspects of the teeth in the posterior quadrants?

Answer 6

• 11/12
• 15/16

Question 7

Which curettes are used to scale the distal aspects of the teeth in the posterior quadrants?

Answer 7

• 13/14
• 17/18

Question 8

What is the technique for scaling with a gracey curette?

Answer 8

the cutting edge must be identified and placed against the surface to be scaled and the terminal shank should be parallel to that surface, applying lateral pressure and pulling upwards, maintaining the parallel shank

Question 9

Which type of gracey curette is the following?
- designed for instrumentation in deeper pockets
- the terminal shank is elongated 3mm to provide better clearance around crowns, and superior access to root contours and pockets 5mm or more in depth
- blade thinned by 10% to ease gingival insertion and reduce tissue distension

Answer 9

after 5 gracey curettes

Question 10

Which type of gracey curette is the following?
- designed with the same elongated terminal shank and thinned blades as the after 5 curette
- 50% shorter blade for access to smaller roots, narrow pockets, furcations and developmental grooves

Answer 10

mini 5 gracey curettes

Question 11

Which type of gracey curette is useful for heavier calculus deposits?

Answer 11

rigid

Question 12

What is the technique for scaling with a universal curette?

Answer 12

• the blade is correctly adapted when the toe is directed interproximally and the terminal shank is parallel to the tooth
• to remove deposits, the cutting edge is applied to the tooth surface and the facial surface of the blade is tilted toward the tooth to achieve a 70-85 degree angle between the tooth and the blade
• apply lateral pressure against the tooth and pull upward while maintaining contact with the tooth