dental studyguide pt 2

Question 1

disadvantage of only using hand instruments to perform a basic dental prophylaxis

Answer 1

length of time
more traumatic to tooth surface and gingiva

Question 2

3 parts of a dental hand scaler

Answer 2

shank
handle
working end

Question 3

mirror image on dental hand instruments

Answer 3

to be able to use the instrument on upper and lower teeth as well as buccal and lingual/palatal surfaces

Question 4

what is the “frequency of the instrument” the discussing ultrasonic dental scalers

Answer 4

CPS; cavitations/vibrations per second

Question 5

two adjustments that need to be made when setting up an ultrasonic dental scaler

Answer 5

power and water

Question 6

when the power setting is increased on an ultrasonic dental scaler why must the water setting also be increased

Answer 6

increased power increases vibrations and increases temperature

Question 7

when using an ultrasonic dental scaler what is the correct technique for using the tip on a tooth

Answer 7

use the side and tip, use light rapid painting strokes, and keep the tip on the tooth

Question 8

how long should the tip of the ultrasonic dental scaler be used on a tooth

Answer 8

10-15 seconds because longer can overheat the tooth causing damage to the pulp and damage the enamel

Question 9

which type of ultrasonic dental scalers does not require water to cool the handpiece

Answer 9

piezo

Question 10

which piezo handpiece tip should be used for removal of both supra gingival and sublingual calculus

Answer 10

perio

Question 11

you are to perform routine dental scaling on a dog using the piezo ultrasonic dental scaler - what should you set the units power setting at

Answer 11

start at 3/4 power and adjust from there

Question 12

what type of water should be used to refill the H20 reservoir on the ultrasonic scaler

Answer 12

distilled water to decrease chance of scale build up in water supply

Question 13

at what speed should the polishing handpiece be set at

Answer 13

low; stops with contact, too high of a setting can remove enamel

Question 14

what precautions should individuals performing the ultrasonic dental scaling take

Answer 14

goggles, mask, gloves; to protect against exposure to possible pathogens

Question 15

on the periodontal probe what measurement does each increment represent

Answer 15

3mm, 5mm, 9mm

Question 16

if you were examining an animal and found that the depth of a pocket was at the second line, what measurement would this indicate

Answer 16

5mm

Question 17

hand instruments that should only be used to remove supra gingival gross calculus

Answer 17

claw scaler, jaquette scaler, dental hoe; they can lacerate tissues if below gums

Question 18

advantage of ultrasonic scaling

Answer 18

more efficient than hand instruments and take less time

Question 19

disadvantage of ultrasonic scaling

Answer 19

takes longer than hand scaling

Question 20

dental curettes can be used to remove dental calculus where

Answer 20

subgingivally

Question 21

10 steps to complete dental prophylaxis

Answer 21

1. Monitor anesthesia (a constant throughout procedure)
2. Rinse oral cavity with Chlorhexidine Solution
3. Remove the heaviest deposits
4. Perform ultrasonic scaling (sub and supragingival)
5. Check for missed calculus using dental explorer
6. Perform subgingival curettage
7. Perform & Chart Periodontal Probing
8. Polish all tooth surfaces (sub and supragingival)
9. Rinse and remove all prophy paste
10. Apply fluoride foam leave for 1-4 min (then remove)

Question 22

if only gross calculus removal is performed and not sub gingival calculus it is of minimal therapeutic value because

Answer 22

leaving plaque/calculus subgingival does not stop progression of disease

Question 23

what is the correct angulation of the ultrasonic dental handpiece

Answer 23

0-15 degrees from the long axis of the tooth

Question 24

what purpose does the water mist that is emitted from the tip of the ultrasonic handpiece have

Answer 24

cool tip and cavitation; flushes away debris

Question 25

what problems can occur if the water control is either set too low or too high on the ultrasonic dental instrument

Answer 25

too low will get too hot; too high will not work properly

Question 26

when using the ultrasonic scaler why must the operator use the light, quick strokes with the handpiece tip

Answer 26

light: too much pressure can cause damage to enamel
quick: time limit per tooth, only have 15 seconds

Question 27

when calibrating the piezo ultrasonic dental scaler, what number should the power control be set at

Answer 27

power at 3/4, water at lowest setting

Question 28

when anesthetizing animals for routine dental prophylaxis, give two important reasons for intubating the animal

Answer 28

maintain airway
prevent aspiration

Question 29

what techniques can be used to detect missed plaque and calculus during the dental prophylaxis procedure

Answer 29

air syringe
dental explorer
disclosing solution

Question 30

why should polishing of all tooth surfaces be done after the completion of the dental scaling procedure

Answer 30

to remove fine etches in enamel

Question 31

when polishing the teeth, the polisher should only be left on a tooth for a short period of time because

Answer 31

heat will damage pulp (3-4 seconds)

Question 32

when polishing the teeth, the polisher should only be applied with light pressure to avoid

Answer 32

damage to the enamel