Grasp and Fulcrum

Question 1

:used for holding the instrument

Answer 1

Handle

Question 2

:rod-shaped length of metal located between the handle and working-end of an instrument

Answer 2

Shank

Question 3

:the part of the instrument that does the work of the instrument

Answer 3

Working-End

Question 4

: the part of the shank that allows the working-end to be adapted to the tooth surface; begins below the working-end and extends to the last bend in the shank nearest the handle

Answer 4

Functional shank

Question 5

: the portion of the functional shank nearest to the working-end

Answer 5

Terminal shank

Question 6

• A shank that is bent in one plane (front-to-back)
• Straight shank
• Used primarily on anterior teeth

Answer 6

•Simple

Question 7

• A shank that has been bent in two planes (front-to-back and side-to-side)
• Angled/curved shank
• Used on posterior teeth

Answer 7

•Complex

Question 8

•Grasp for holding periodontal instruments•Allows precise control of the working-end•Permits a wide range of movement•Facilitates good tactile conduction
Thumb and index finger hold the instrument•Middle finger stabilizes•Ring finer used to fulcrum(hinge/pivot)•Thumb is used to roll the instrument•Fingers maintain contact and work together to adapt the instrument•Movement is in the wrist

Answer 8

Modified pen grasp

Question 9

•A stabilizing point inside the patient’s mouth against a tooth surface

Answer 9

INTRAORAL FULCRUM

Question 10

•A stabilizing point outside the patient’s mouth (e.g., against the patient’s chin or cheek)

Answer 10

EXTRAORAL FULCRUM

Question 11

_______ usually correlates to attachment loss, but it is always an objective measure of the distance between the base of the pocket and the crest of the gingiva regardless of the degree of attachment loss. Readings may change over time due to changes in the position of the gingival margin

Answer 11

Probing depth

Question 12

Used to evaluate the bone support in the furcation areas of bifurcated and trifurcated teeth

Answer 12

Nabers (furcation) Probe

Question 13

In health, the probe will stop at the _____

Answer 13

Junctional epithelium

Question 14

In disease, the probe will stop at the _______

Answer 14

Connective tissue

Question 15

_____= act of walking the tip of a probe along the junctional epithelium(JE) within the sulcus or pocket for the purpose of assessing the health status of the periodontal tissues

Answer 15

Probing

Question 16

Is JE uniform all around tooth?

Answer 16

No

Question 17

Should the working end always contact tooth?

Answer 17

Yes

Question 18

Should the probe be parallel to long axis of tooth?

Answer 18

Yes

Question 19

T/F: The probe should be kept subgingivally

Answer 19

True

Question 20

:Base of pocket to gingival margin

Answer 20

Pocket/Probing Depth (PD)

Question 21

:CEJ to base of pocket

Answer 21

Attachment Level

Question 22

:CEJ to Gingival Margin (GM)

Answer 22

Recession

Question 23

When probing, what type of movements should be used?

Answer 23

Bunny hops

Question 24

When activating the explorer, what type of movements should be used?

Answer 24

Short,overlapping strokes