lab quiz

Question 1

How many cutting edges does a scaler have?

Answer 1

two cutting edges per working end

Question 2

How many cutting edges does a universal curet have?

Answer 2

two cutting edges per working end

Question 3

how many cutting edges does a gracey curet have?

Answer 3

only one cutting edge per working end

Question 4

What is the probing technique?

Answer 4

hold side of probe tip flat against the tooth surface, probe parallel to long axis of tooth for vertical insertion

slide probe along tooth surface vertically down to base of pocket (sulcus),

maintain contact to side of tooth

as probe is passed down side of tooth, rougness may be felt

count mm that show the probe on the gingival margin and subtract from total number

use walking stroke

Question 5

Names of explorers

Answer 5

sickle or shepherds hook

Pigtail or cowhorn

Question 6

how can you detect calculus other than with an explorer?

Answer 6

disclosing solution

Question 7

what are the three parts of an instrument?

Answer 7

handle, shank, working end

Question 8

Appropriate instrument grasp?

Answer 8

modified pen grasp

Question 9

what is the difference in supragingival and subgingival scaling?

Answer 9

Supragingival calculus deposits are located coronal to the gingival margin, usually on the crowns of the teeth. they are used for removal of light deposits

Subgingival are located apical to the gingival margin and below the gumline

Question 10

why do we perform an intraoral and extraoral exam?

Answer 10

to look for anything abnormal

Question 11

when do we prefer a biopsy?

Answer 11

unusual lesion that cannot be identified with clinical certainty

any lesion that does not show evidence of healing in a 2 week time period

persistant, white, thick, hypekeratotic lesion and any mass that does not break thru the surface epithelium

Question 12

whats the purpose of polishing?

Answer 12

To remove extrinsic stains

Question 13

What is a pigtail explorer used for?

Answer 13

proximal surfaces for calculus, dental caries or margins of restorations

curved tips are applied opposite to tooth surface

ex. 3ML,3CH,2A

Question 14

what is an orban type explorer used for?

Answer 14

assessment of anterior root surfaces and the facial and lingual surfaces of posterior teeth.. difficult to adapt to the line angles and proximal surfaces of post. teeth..

ex; 17, 20F, TU17

Question 15

what is an shepherds hook explorer used for?

Answer 15

examining pits and fissures and supragingival smooth surfaces, and margins of restorations and sealants

Question 16

What is a disclosing agent?

Answer 16

preparation in a liquir, tablet, or lozenge that contains a dye or other coloring agent. In dental hygiene, a disclosing agent is used to identify dental biofilm deposits for instruction, evaluation, and research.

Question 17

Furcation probe?

Answer 17

Nabors probe

Question 18

What instruments are used for supragingival calculus deposits?

Answer 18

sickle scalers, and curets

Question 19

Where is the Nevi 1 sickle scaler used?

Answer 19

coronal surfaces of anterior teeth- sickle end

disc end is used on lingual surfaces of anterior teeth for supragingival use

Question 20

What type of Nevi Sickle scaler is used for posterior teeth to remove med. to large deposits?

Answer 20

Nevi 4

Question 21

This type of nevi sickle scaler is used on coronal surfaces of posterior teeth..

Answer 21

Nevi 2

Question 22

where is the nevi 3 used?

Answer 22

coronal surfaces posterior teeth

Question 23

where can universal curets be used?

Answer 23

supra or subgingival on crown and root surfaces on ant. or post. teeth

ex; barnhart, langer,

Question 24

area specific curets?

Answer 24

designed specifically for a certain area in the mouth. example, gracey series

Question 25

What gracey curets are used on all anterior teeth, tooth surfaces?

Answer 25

gracey 1 and 2

gracey 3 and 4

Question 26

what are the gracey 5 and 6 curet used for?

Answer 26

ant. teeth all tooth surfacess
premolar teeth, all tooth surfaces
molar teeth, facial, lingual, mesial surfaces

Question 27

what are the gracey 7 and 8, gracey 9 and 10 used for?

Answer 27

ant. teeth all surfaces
post. teeth all surfaces
post. teeth facial and lingual surfaces

Question 28

what are the gracey 11 and 12 used for?

Answer 28

ant. teeth mesial and distal surfaces
post. teeth mesial only
post. teeth: fac, ling, and mesial

Question 29

gracey 13 and 14 used for?

Answer 29

ant. teeth MD surfaces

post. teeth D surfaces

Question 30

gracey 15 and 16?

Answer 30

post. teeth, fac, ling, mesial surfaces

Question 31

gracey 17 and 18?

Answer 31

post. teeth, distal surfaces

Question 32

where are sickle scalers used for excellent calculus removal?

Answer 32

proximal surfaces of anterior crowns and enamel surfaces apical to the contact areas of post. teeth

Question 33

11/12 explorer used for?

Answer 33

assesment of root surfaces of ant. post. teeth

ex. ODU 11/12, AND 11/12 AF

Question 34

what type of explorer is excellent for subgingival assessment of ant. teeth?

Answer 34

orban type such as TU17

Question 35

when exploring post. teeth how should the explorer be?

Answer 35

lower shank parallel to distal surface

func. shank goes over tooth