Chair Side Dental Assisting

Question 1

four handed dentistry goals (3)

Answer 1

provide patient comfort and quality care
minimize stress and fatigue
reduce chair time

Question 2

operator positioning (clock concept)

Answer 2

the operator is viewed from above and compared to a clock face
7-12 o’clock (right handed)
12-5 oclock (left handed)

Question 3

chair side dental assistant work areas (3)

Answer 3

access to all the essentials for procedures with minimal movement
includes static zone (12-2 right handed, 10-12 left handed)
includes the mobile cabinet and large equipment

Question 4

static zone

Answer 4

anything behind the patient that they don’t see

Question 5

transfer zone

Answer 5

down in front of the patient

Question 6

instrument exchange (4 key points)

Answer 6

team effort
instrument zone
transfer zone
basic principles of instrument exchange

Question 7

team effort (2)

Answer 7

dentist contributes most by standardizing procedure and working in a systematic manner
assistant contributed by anticipating

Question 8

transfer zone (5)

Answer 8

front of the mouth and at chin level (not over patients head)
dentist must signal
dentist must stay in transfer zone
dentist should not have to move finger rest or eye focus
assistant should always have something ready to transfer

Question 9

instrument exchange (3)

Answer 9

mirror and explorer at the beginning of each procedure
pick up the air/water syringe to dry tooth, then mirror
dentist in vitiates exchange by moving instrument slight away from the patients mouth

Question 10

assistant picks up next instrument with (3)

Answer 10

thumb, index and third finger

Question 11

assistant positions new instrument parallel to the

Answer 11

instrument being used

Question 12

working end pointed in direction of

Answer 12

use

Question 13

little finger of the assistants left hand grasps the instrument at the

Answer 13

end opposite to the working end

Question 14

single handed rotation

Answer 14

rotates used instrument

Question 15

primary functions (3)

Answer 15

keep the back of the mouth fire from saliva, water and debris
retract the tongue and cheek away from the field of operation
reduce the bacterial aerosol caused by the hand piece

Question 16

grasp (3)

Answer 16

right hand when assisting a right handed operator
pen grasp
palm-thumb grasp

Question 17

posterior placement (3)

Answer 17

assistant positions the evacuator tip before the dentist
the opening is parallel to the tooth
posterior to tooth working

Question 18

anterior placement (2)

Answer 18

top of the opening even with the occlusal/incisal surface

cotton roll placed in the vestibule between the teeth and cheek onto which the tip rests

Question 19

operative procedures (2 phases)

Answer 19

preparation phase

restorative phase

Question 20

SKIPPED
preparation phase (9)

Answer 20

obtain restorative tray and needed supplies and place on cabinet top
review health and history and select anesthetic
attach handpicks and insert burs

assemble anesthetic syringe, topical, tofflemire matrix, and rubber dam\
seat patient and obtain and record vitals
position chair for field of operation

transfer mirror, explorer and dry the teeth and error with the air water syringe
anesthetic administered
area isolated with cotton products (ie cotton rolls or dry angles) or rubber dam

Question 21

in preparation phase, tooth prepared with

Answer 21

hand piece and hand instruments

Question 22

restorative phase (3)

Answer 22

dry prep and reisolate the area (using dry products)
apply bonding materials or desensitizing agents, liners
place matrix and wedges

Question 23

certified dental assistant (2)

Answer 23

passes the dental assisting national board (DANB)

requires 12 continuing education hours a year to maintain CDA status

Question 24

ring handed is usually at - oclock

Answer 24

3

Question 25

left handed is usually at - o’clock

Answer 25

9

Question 26

DA stool is - to - inches higher than operator

Answer 26

4-6 in

Question 27

DA hips are at the patient’s

Answer 27

shoulders

Question 28

feet rest on the — so the thighs are —

Answer 28

ring

parallel

Question 29

DA stool arm at level of — and cabinet top over —

Answer 29

abdomen

thighs

Question 30

basic principles of instrument exchange

Answer 30

firm, deliberate movements accomplished with minimum of motion involving only the fingers, wrist and elbow

Question 31

the instrument is placed into the dentists hand by the assistant slightly rotating their hand and

Answer 31

lowering the instrument into the dentists hand

Question 32

at the end of instrument transfer, (2)

Answer 32

the assistants hand exits the transfer zone to replace used instrument to tray
or
rotates used instrument into position for reuse (single handed transfer technique)

Question 33

oral high evacuation (3)

Answer 33

primary functions
placement
grasp

Question 34

in restorative phase, mix amalgam and load carrier or place composite capsule in extruder, then

Answer 34

transfer carrier/extruder, condensers, and sarvers

Question 35

in restorative phase remove (2)

Answer 35

remove any matrix and wedge(s) and carve proximal

remove rubber dam or dry products (ie cotton rolls, dry angles)

Question 36

at the end of restorative phase, (2)

Answer 36

check occlusion and transfer carver

rinse and give post operative instructions