Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

OSCE > Op Tech > Flashcards

Op Tech Flashcards

1
Q

WHAT ARE CAVITY MARGINS

A

junction between the prepared cavity wall and the external surfaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

WHAT IS THE CAVO SURFACE MARGIN ANGLE

A

the angle created at the point where a prepared cavity wall meets any external wall
should be 90 degrees in amalgam
should be an obtuse angle for composite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

WHAT ARE POINT ANGLES

A

the angle formed by the junction of three surfaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

WHAT IS THE OCCLUSAL/PULPAL FLOOR

A

the floor of the cavity which is parallel to the occlusal plane
overlies the pulp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

WHAT IS THE GINGIVAL FLOOR

A

the surface which is parallel to the occlusal plane in an interproximal cavity, bound externally by the gingival margin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

WHAT IS THE PULPAL AXIAL WALL

A

the wall which is parallel to the long axis of the tooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

WHAT IS THE BUCCAL/LINGUAL AXIAL WALL

A

the wall which is parallel to the long axis of the tooth, bound by the occlusal floor and the cavo-surface margin angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

WHAT IS THE ISTHMUS

A

the least wide part of a key cut proximal-occlusal cavity preparation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

WHAT IS A LINE ANGLE

A

where any two walls meet and create a line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

WHAT ARE THE 2 CATAGORIES OF HAND INSTRUMENTS

A

cutting (cutting edge)

non-cutting (point)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

WHAT ARE THE USES OF A STRAIGHT DENTAL PROBE / DENTAL EXPLORER / SICKLE PROBE

A

caries protection
point focus
surface testing and retraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

WHAT ARE THE FEATURES AND USES OF AN EXCAVATOR

A

spoon/ round
3 sizes

caries excavation
restoration shaping and contouring
material removal/manipulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

WHAT ARE THE USES OF A DENTAL MIRROR

A

intra-oral viewing

soft tissue retraction and protection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

WHAT ARE THE USES OF TWEEZERS

A

handling small object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

WHAT ARE THE TWO TYPES OF TWEEZERS

A

surgical locking

collage - we use

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

WHAT ARE THE USES OF A DENTAL CHISEL / HATCHET

A

enamel/cavosurface margin angle finishing

removing unsupported enamel prisms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

WHAT ARE THE USES OF A FLAT PLASTIC

A

shaping flowable materials - comp and GI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

WHAT ARE THE USES OF A CONDENSOR

A

condensing amalgam

manipulating composite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

WHAT ARE THE USES OF A BURNISER

A

finishing amalgam

manipulating composite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

WHAT ARE THE USES OF A CARVING ISNTRUMENT

A

carving amalgam

shaping composite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

WHAT DOES THE COLOURED BAND ON A BUR INDICATE

A

diamond grit size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

WHAT IS A YELLOW BAND ON A BUR

A

extra fine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

WHAT IS THE RED BAND ON A BUR

A

fine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

WHAT IS A BLU BAND ON A BUR INDICATE

25
WHAT DOES WHITE BAND ON A BUR INDICATE
super fine
26
WHAT DOES A GREEN BAND ON A BUR INDICATE
coarse
27
WHAT DOES A BALCK BAND ON A BUR INDICATE
super coarse
28
WHAT IS THE USE OF A MATRIX BAND
replacing cavity walls | moisture control
29
WHAT IS THE USE OF WOODEN WEDGES
slight tooth separation to improve contact point formation adapt the matrix band when interproximal
30
WHAT IS THE COMPOSITE WE MAINLY USE
highly filled bis-GMA resin | hybrid
31
WHICH MATERIAL IS UNFILLED BIS-GMA
flowable composite
32
IDENTIFYING HAZARDS
``` bur in handpiece unsheathed needle blood outside spittoon instruments in sink but box open no paper towel on bracket table messy bracket table self curing materials in light wrong PPE over wearing gloves puddle cement on instruments endo files overflowing sharps tangled tubing lid off composite when not in use ```
33
FORMS OF GIC
powder and liquid | Fuji triage capsule
34
WHAT ARE THE USES OF A DENTAL DAM
``` airway protection field and chemical isolation better vision and access health and safety helps patient comfort and management ```
35
WHAT ARE DENTAL DAM RETAINERS
clamp floss wedges widget cord
36
WHAT ARE DENTAL DAM RETAINERS
clamp floss wedges widget cord
37
WHAT MATERIAL IS DENTAL DAM
nitrile | used to be latex but too much allergy
38
WHAT IS ALL THE DENTAL DAM EQUIPMENT
``` dam frame punch floss widget clamp scissors clamp forceps ```
39
WHY PULL THE FLOSS OUT BUCCALLY WHEN FLOSSING A DAM
as you can displace the dam pulling cervically
40
WHAT ARE THE PRINCIPLES OF CAVITY PREPARATION
access - enamel caries extent - remove enamel caries to extent of lesion at ADJ = outline remove dentinal caries - slow speed from ADJ inwards remove deep caries over pulp - big slow instrument modifications - cavo-surface angles internal design modifications - line / point angles final seal = smooth, no unsupported tissue, check over
41
WHAT IS THE CONFIGURATION FACTOR
the number of bonded surfaces in an adhesive restoration | high = lots of surfaces
42
WHAT IS CONFIGURATION STRESS
composite dimensional change etch/bond stronger than interstitial enamel strength enamel failure
43
WHY DO WE ETCH
to remove the smear layer - exposing dentinal tubules
44
WHY LEAVE SURFACES MOIST AFTER ETCHING
over drying dentine can cause post op sensitivity
45
WHY USE FLOWABLE UNDER A RESTORATION
mediate contraction stresses on interface | achieve optimal adaption to non load bearing surfaces
46
WHAT LIGHT CURING INTENSITY IS REQUIRED TO CURE 1.5-2MM DEPTH OF COMPOSITE RESIN
280-300mW/cm2
47
WHAT ARE THE SAFE TO USE CHECKS FOR HANDPIECES
check the coupling is secure check the bur in secure in the handpiece backcap cannot rotate
48
WHAT ARE THE FIT FOR USE CHECKS FOR HANDPIECES
no lateral movement of the bur bur spins freely check consistent sound for 5 seconds
49
HOW TO MIX FUJI
i. Open packet and activate capsule by pressing into bench until red portion is depressed into thr capsule ii. Needs mixed to be activated for 10 seconds in the amalgamator iii. Place capsule into the dispenser gum iv. Inject into tooth keeping tip at bottom of cavity and filling until excess v. Remove excess with flat intrument, remember and clean instrument or it will set vi. Short working time with this material vii. 3 setting stages Now set so use articulation paper to double check occlusion
50
WHAT IS IN PRIME AND BOND
Bis-GMA and HEMA resin combined by an initiation system acetone camphorquinone
51
WHTA DO TO AFTER APPLIED BOND TO TOOTH
leave it for 20 seconds then use air to help dissolve the solvent for 5 seconds
52
WHAT MATERIAL SHOULD BE USED FOR TEMPORARY FILLINGS
RMGI
53
WHICH MATERIAL IS USED FOR A DIRECT PULP CAP
calcium hydroxide
54
WHICH MATERIAL IS USED AS AN INDIRECT PULP CAP
RMGI | when remaining dentine is thin
55
WHY WOULD YOU USE A PULP CAP (LINING)
for thermal insulation in amalgam for the chemical toxicity in unset resin in composite when pulp is exposed or nearly
56
WHAT FORM IS CALCIUM HYDROXIDE
powder and liquid | spatulate
57
HOW DOES THE PULP CAPPING WORK
do calcium hydroxide direct pulp cap set do RMGI indirect pulp cap
58
WHAT KIND OF CURE IS RMGI
Acid base light cure = dual Light cure and redox = tri
59
ORDER OF CLEANING DOWN A DENTAL UNIT
PPE gloves and apron 1. Light , head rest 2. Fabric of chair 3. Arm rests 4. Partition between unit 5. Bracket table handpiece 6. Motors handpiece 7. Cables 8. Housing for handpiece 9. Spitoon

OSCE (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions