chapter 39 part 2

Question 1

What curets are area specific

Answer 1

Gracey Curets

Question 2

Area specific curets are designed how?

Answer 2

Each curets is designed for adaption to specific surfaces

Question 3

Working ends of gracey curets

Answer 3

paired Mirror-image. Usually placed on a single handle.

Question 4

the original 7 pairs of gracey curets

Answer 4

1/2. 3/4. 5/6. 7/8. 9/10. 11/12. 13/14.

Question 5

face of gracey curet

Answer 5

offset at an angle of 70 degrees in relation to the lower shank.

Question 6

cutting edge of gracey curet

Answer 6

continuous around the face,

Question 7

Variations of gracey curets were designed to

Answer 7

1.) to facilitate access to the base of deeper pockets.

Question 8

“after 5 curet”

Answer 8

is 3 MM longer than standard curet.

Question 9

“mini 5 curet”

Answer 9

blade is 3MM shorter than standard curet and shank is longer to reach the base of a deeper pocket.

Question 10

“Micro mini 5 curet”

Answer 10

has a 50% shorter blade, the shank is longer and thinner

Question 11

all shank adaptions of gracey curets give you

Answer 11

access to deeper pockets.

Question 12

which Gracey is in our kit?

Answer 12

1/2 micro mini 5

Question 13

Burnishing can cause

Answer 13

Calculus to be embedded into the root surface and cause permanent damage

Question 14

burnishing occurs when

Answer 14

dull instruments don’t scale the calculus off, but rather take small layers off and smooth the calculus.

Question 15

the blade of a gracey curet that has a variation is

Answer 15

reduced in length for special adaption to root curvatures difficult to access

Question 16

Purpose of Curets

Answer 16

Curets are the standard instrument for SUBgingival calculus, and can be used to remove supragingival calculus close to the gingival margin

Question 17

Blade of the curets forms a

Answer 17

70 degree angle with the tooth

Question 18

adaption of curet

Answer 18

the toe third or lower third of the cutting edge is maintained on the tooth surface at all times

Question 19

Sequence of TX for instruments

Answer 19

1. ) explore
2. ) ultrasonic
3. ) scale
4. ) universal curet
5. ) area specific curet

Question 20

curets with a slender shank allow what?

Answer 20

entrance into the sulcus orocket with minimal trauma to the gingival margin

Question 21

the rounded back of the curet minimizes

Answer 21

possible trauma at the base of the pocket

Question 22

universal curets are used for

Answer 22

subgingival scaling for removal of as much calculus as possible

Question 23

Area specific curets follow universal curets for

Answer 23

fine scaling and root planning.

Question 24

curved/sickle scalers

Answer 24

2 cutting edges on a curved blade.

the face converges with the 2 lateral surfaces to form the tip of the scaler, which is a sharp point.

Question 25

Curved/sickle scaler in Xsection

Answer 25

triangular in shape

Question 26

Straight/ Jacquette scaler

Answer 26

2 cutting edges on a straight blade.

the face is flat

Question 27

Angulation of the shank on scalers

Answer 27

straight and adaptable for primarily anterior teeth. -may be used to Tx premolars

Question 28

Modified or contra-angled scaler

Answer 28

paired instruments that are mirror images of each other to provide access to the proximal surfaces of posterior teeth
(1 adapts from the Facial and the other adapts to the Lingual/palatal surfaces)

Question 29

Use of scalers

Answer 29

Mainly supragingival calculus

Question 30

contraindications of scalers

Answer 30

• using subgingivally can cause trauma to gingival tissue. can scratch the cemental surface.
• Tactile sensitivity is reduced w/ larger heavier, blades

Question 31

angulation of face of blade of scalers

Answer 31

adapted to the tooth surface at appr. 70 degrees

Question 32

application of using scaler

Answer 32

pull stroke only.

Question 33

more heavy rigid shank is used for

Answer 33

heavier calculus deposits

Question 34

thinner shank used for

Answer 34

light calculus

Question 35

need to use a hollow handle for

Answer 35

better tactile pressure and not as heavy (hard on hands)

Question 36

stability is essential for

Answer 36

effective controlled action of an instrument

Question 37

modified pen grasp

Answer 37

thumb, index and middle finger hold instrument with the ring finger on stable surface as a fulcrum

Question 38

fulcrum/ finger rest

Answer 38

the support or point of rest on which a lever turns in a moving body. a finger rest is always used when instruments are applied to teeth and gingiva

Question 39

Objectives for finger rest

Answer 39

1. ) stability
2. ) Unit control
3. ) prevention of injury (carpal tunnel)
4. ) comfort for the patient
5. ) control of length stroke

Question 40

Types of stroke by direction

Answer 40

• diagonal or oblique
• vertical
• horizontal

Question 41

why do we not fulcrum on mobile teeth

Answer 41

there isn’t proper stability and it can further damage an already weak periodontium

Question 42

Universal curet face blade is

Answer 42

at a 90 degree angle with lower shank

Question 43

face blade of gracey curet is

Answer 43

at a 70 degree angle with the lower shank