Area Specific/Universal Curets

Question 1

What is a limitation of a cruet?

Answer 1

They area specific therefore you need multiple instruments to complete the entire mouth.

Question 2

What are some universal characteristics of an area specific curet?

Answer 2

1. Rounded back
2. Rounded toe
3. semi-circular cross section

Question 3

What is the angulation of the lower cutting edge in an area specific curet?

Answer 3

70 degrees

Question 4

Which cutting edge is the correct cutting edge in an area specific curet such as a gracey?

Answer 4

The lower edge; it is self-angulated so it is automatically correctly angulated when the lower shank is held parallel to the tooth surface.

Question 5

Describe the shank of an area specific curet.

Answer 5

Long and complex for root surface debridement and perio pockets.

Question 6

What is an area-specific curet?

Answer 6

A periodontal instrument used to remove light to moderate calculus deposits from the crowns and roots of the teeth.

Question 7

When using an area-specific curet such as a gracey how do you determine the correct cutting edge?

Answer 7

Holding the instrument with the toe facing you the lower cutting edge (the correct cutting edge) will be PERPENDICULAR with the floor.

Question 8

What type of instrument is a McCalls?

Answer 8

A universal curet.

Question 9

Where is a McCalls instrument used?

Answer 9

1. Distal of the most post. molars
2. Linguals of sextant 5
3. Loose tissue areas
4. Shallow Pockets
5. Heavy Calculus

Question 10

When looking at a McCalls instrument how would you describe the shape of the terminal shank?

Answer 10

a letter “C”

Question 11

What is a limitation of the McCalls instrument?

Answer 11

It is large instrument so it is not adaptable to many areas.

Question 12

What type of instrument is a Mallory?

Answer 12

A universal curet.

Question 13

What does a Mallory instrument look like?

Answer 13

The letter “L”

Question 14

What is the Mallory used for?

Answer 14

1. Deeper Pockets
2. Furcations
3. Root Debridement

Question 15

Which Gracey instruments are typically used on anterior teeth?

Answer 15

1/2 or 3/4

Question 16

Where are “mini” graceys typically used?

Answer 16

Sextant 5 in deeper pockets

Question 17

What is a disadvantage of using a mini gracey?

Answer 17

The end can be easily broken off.

Question 18

What are characteristics of a standard curet?

Answer 18

1. L. Shank is less than 3mm
2. Standard working end
3. Used in 4mm pockets or less

Question 19

Describe an extended shank curet.

Answer 19

1. L. Shank is 3mm longer than standard gracey.
2. Working end is 10% thinner than standard.
3. Used for RD pockets 4mm or deeper.

Question 20

Describe a Mini curet.

Answer 20

1. L. Shank is 3mm longer than standard gracey.
2. Working end is 10% thinner than standard.
3. Used for RD, furcations, concavities, midline of anterior roots.

Question 21

Describe a micro-mini curet.

Answer 21

1. Working end is 20% smaller than standard gracey.
2. Used for tight narrow pockets and furcations.
3. Developmental depressions, line angles, and facial, lingual or palatal surfaces.