Lecture 3 Flashcards
1
Q
Placement of dam:
A
2 teeth behind the tooth of interest to the contralateral incisor
2
Q
Ist molar hole
A
second largest hole
3
Q
premolar hole
A
3rd largest hole
4
Q
Clamp size for tooth #15
A
3
5
Q
of points of contact you should have with clamp:
A
4
6
Q
line up bow:
A
parallel to the lines on the dam
7
Q
lubricant we use
A
Every Man Jack shaving cream
8
Q
to get rubber dam bw teeth
A
Reach waxed tape - very thick
9
Q
Hook this side on the dam first:
A
top
10
Q
On which tooth does the first clamp attach?
A
2 behind the tooth you are working on and one on the actual tooth as well.
11
Q
Function of bow clamp:
A
Retracts gingival tissue for facial/cervical
12
Q
4 parts of clamp
A
bow (arch), pinch, wing, jaws
13
Q
W2:
A
Premolare
14
Q
W3:
A
Flat jawed
15
Q
W8:
A
normally erupted max molars
16
Q
W8a:
A
small/partially erupted molars (jaws angle down)
17
Q
212:
A
double bowed clamp - class 5 lesion, small lower teeth
18
Q
on which side is the clamp more gingival, lingual or buccal?
A
buccal to retract tissue more to fill the Class V restoration
19
Q
How do you have to punch the hole for the 212 clamp for a Class 5 cervical lesion?
A
slightly out of alignment to the buccal
20
Q
Operative teeth that need to be isolated:
A
quadrants
21
Q
Endodontics teeth that need to be isolated:
A
single tooth
22
Q
Steps previous to dam placement:
A
- anesthesia
- Check inter-proximal contacts
- Check occlusal contacts
- shade selection in esthetic restoration
6.
7. - Select retainer
- Retainer is ligated (attach floss)
23
Q
T or F? Always restore tooth to an anatomically perfect tooth if restoring.
A
F. Reproduce the restoration as the occlusal contact wee before you started
24
Q
Dam lubricants we can use:
A
water soluble/ vaseline
25
Steps for placement:
1. selection of teeth to be isolated
2. select retainer
3. cut orifices
4. lubricate rubber dam
5. place clamp
6. pass ligature flow through dam most posterior orifice
7. stretch rubber dam over the retainer sealing it on the distal (double punched sometimes)
8. Distribute orifice on each tooth
9. Wedjet to fix anterior end (rubbery material)
10. place fram and napkin
11. Floss dam
12. Inversion of dam
26
Dam removal:
1. cut septa bw teeth
2. remove ant/pos anchorage
3. remove dam and fram
4. verify all has been removed (lie dam flat on surface)
27
When might we not use dam
anterior, if we do - canine to canine
28
Ligature use benefits:
1. keep dam inverted
2. improve access
3. controls filtration
29
When not to use dam:
1. partially erupted that clamp won't hold on to
2. some 3rd molars
3. very malpositioned teeth
4. pts w/ asthma
5. psychological reasons
6. latex allergies (non-latex is available)
30
Isolation types
cotton rolls, gauze, iso-shield, saliva ejectors, spandex, retraction cords
31
when to use retraction cords:
sub gingival caries and ?
32
When is RD isolation evaluated?
every practical procedure
33
T or F? Push RD through the teeth from posterior to anterior.
F. Anterior to posterior
34
To cut, plane and cleave tooth structure:
Hand instruments
35
Instruments used to cut and shape tooth structure in the school classification:
A series
36
Examples of instruments used to cut and shape tooth structure:
hatchets, hoes, chisels, and spoons
37
Instruments used to place restorative materials in the school classification
B series
38
Examples of instruments used to place restorative materials
amalgam condensers and plastic instruments
39
Instruments used to shape and finish restorative materials in the school classification:
C series
40
Examples of instruments used to shape and finish restorative materials:
Hollenback carvers, cleoid discoids and various other carvers
41
Primary cutting edge may be:
monobeveled or bibeveled
42
connects blade to handle:
shank
43
T or F? All hand instruments have secondary cutting surfaces.
F.
44
What do the numbers represent in Black's 3 Number Formula?
width of blade in tenths of a millimeter, length of blade in millimeters, angle of the long axis of the blade (degrees centigrade)
45
1st digit of Black's classification system of 15 is how long?
1.5 mm
46
25 degrees centigrade corresponds with how many degrees?
90
47
Black's 4 # formula
width of blade in tenths of a millimeter, angle of cutting edge of the blade with the handle (degrees centigrade), length of blade in millimeters, angle of the long axis of the blade (degrees centigrade)
48
What is the 2nd digit in Black's 4 digit numbering system?
angle of cutting edge of the blade with the handle (degrees centigrade)
49
Rotary cutting instruments:
burs, diamonds, and drills (end cutting inst. only)
50
Which is more effective as a side cutting instrument. bur or drill?
bur
51
What is a bur?
multi bladed rotary milling cutters
52
direction of bur spinning
counter clockwise (when viewed form cutting end)
53
How are burs classified?
shape and diameter of the cutting end of the bur
54
Burs can have as many as ___ blades, but usually have.
40, 6-8
55
Which part the bur adapts to the handpeice?
shaft (friction grip, latch type)
56
We primarily use these burs:
330 (pear) and 245 (long inverted cone)
57
plural depth we most often need:
1.5-1.6mm (330 = 1.6mm)
58
Parallel sided bur, #'ed 55 1/2 to 60, multipurpose bur:
straight fissure bur
59
cross cuts (notches), 556-560, to improve cutting efficiency (not really anymore), same basic shape as straight bur:
cross cut straight fissure bur
60
33 1/3 -40, develop retentive features, smooth walls,sharpen angles of prep, sides of bur converge toward shank:
inverted cone bur
61
168-171, develop initial stages of prep and tapered wall forms, sides of bur converge toward end of bur:
tapered fissure bur
62
1/16th - 11, used to develop retentive features and to remove caries
rough bur (1/4 round and 1/2 round in this course)
63
diamond particles are attached to a metal black - size and shape of the diamond particles determine the abrasiveness:
diamond bur
64
How are sextents divided?
bw the canines and the 1st premolars
65
Where are the marginal ridges of ant teeth?
m and d borders of the lingual surfaces
66
Common cause of fissures:
lack of fusion of the enamel of adding dental cusps or lobes
67
axial wall:
wall adjacent or nearest to the pulp chamber or pulp canals, approx parallel to the long axis of the tooth
68
What is the wall of the occlusal portion of a prep?
pulpal wall
69
Shape of lingual and facial walls for amalgam placement:
parallel or convergent for retention
70
Shape of lingual and facial walls for resin composite:
can be divergent since bonding will occur to dentin or enamel
71
T or F? The line angles for bonded restorations must be well defined.
F. may not be well defined, often rounded
72
Another name for margins:
cavosurface angles
73
What are cavosurface angles?
jxn of a cavity wall and an external tooth surface
74
T or F? in a normal, healthy individual the clinical down is typically smaller than the anatomical.
T
75
On which surfaces do Class I lesions occur?
facial, lingual, an occlusal
76
Class I lesions most often occuur on these teeth:
lateral incisors
77
These ant teeth rarely get Class I lesions.
Canines
78
T or F? A lesion in a pit on the facial surface of an anterior tooth is a Class I restoration.
T
79
Class 5 lesions may include involvement of what type of tooth structure?
cementum, dentin, and/or enamel
80
Do Class 5 lesions include lingual surface or only refer to buccal and labial surfaces?
Both
81
Bonded, tooth-colored restorations require neither:
mechanical or undercut retention.
82
The shape or outline of the cavity prep:
cavity form
83
The shape of cavity prep needed to obtain access for instruments:
conveinience form
84
The shape of cavity prep needed to provide retention for the material:
retention form
85
The shape of cavity prep required to resist stress on the restoration and the tooth from forces:
resistance form
86
Blacks' steps of cavity preparation:
1. Establish outline form
2. Obtain resistance form
3. Obtain retention form
4. Obtain convenience form
5. Remove remaining carious dentin
6. FInish enamel walls and cavosurface margins
7. Clean the prep
87
T or F? Improperly placed restoration may lead to tooth fracture of the tooth restored.
T
88
How is retention obtained?
mechanical shaping and/or bonding procedures
89
Why are unsupported enamel overhangs more prone to fracture after restoration placement?
polymerization shrinkage
90
Preferred hand instrument metal:
stainless steal (iron, chromium {corrosion resistance}, carbon {hardness}, and maybe nickel)
91
The working end of the blade should be within:
2-3mm of the axis of the handle
92
Does a longer or shorter blade require more force to be used?
longer
93
The name for when an instrument is angles so as to bring the working end within 2-3mm of the long axis of the handle:
contra-angled ( 2 or more angles)
94
Diameter of standard metal handle:
1/4 inch (6.4mm)
95
T or F? Larger handled instruments are said to be more ergonomic.
T
96
Black called all cutting instruments used for tooth preps:
excavators
97
Up to how many angles may shanks have?
4
98
Instruments in which the blade and cutting edge are on a plane with the long axis of the handle:
hatchet
99
Instruments with a blue that is either aligned with the handle, slightly angled, or curved from the long axis of the handle, with the working end at ta R angle to the handle:
chisel
100
What type of instrument is a Wedelstaedt?
chisel
101
This type of instrument has a cutting edge that is at a R angle to the handle with a blade at an angle greater than 12.5 centigrades from the long axis of the handle than a chisel:
hoe
102
The blade of a hoe must be at an angle to the long axis of the handle greater than __ degrees (not centi-grades)
45 degrees
103
The blade of a chisel must be at an angle to the long axis of the handle less than ____ degrees.
45 degrees (12.5 centigrades)
104
T or F? The cutting edge of a spoon is parallel to eh handle of the instrument.
T
105
This instrument has a blade that is curved and the bevel for the cutting surface edge at the end of the blade is always on the outside of the curve:
gingival margin trimmer
106
This instrument has a blade rotated 45 degrees from the plane oath long axis of the handle:
off-angle hatchet
107
Which angle of the off-angle hatchet is meant of use?
acute angle
108
On which side of the blade is the bevel in an off-angle hatchet?
back
109
Puling strokes with a double-ended hoe are done with this end:
beveled end or end with distal bend
110
Pushing strokes with a double-ended hoe are done with this end:
contra bevel end or end with mesial bevel
111
Are most cutting instruments single or double beveled?
single
112
What instrument is useful for placing retention points in some direct girl (gold foil) filings?
bi-beveled cutting edge of off-angle hatchet
113
When is the 3-numbered system used?
instruments in which the primary cutting edge is at a R angle to the long axis of blade
114
In margin trimmers a cutting edge angle of greater than __ centigrades is intended for distal gingival margins:
90
115
In margin trimmers a cutting edge angle of __ centigrades or less is intended for mesial gingival margins:
85
116
a blade with its primary cutting edge on the side of the blade toward the handle:
beveled
117
a blade with its primary cutting edge on the side of the blade away from the handle:
contrabeveled
118
Is contrabeveld a mesial or distal bevel?
mesial
119
These are designed to plane enamel and dentinal walls and margins:
hatchets, hoes, chisels, and gingival margin trimmers
120
The flat end of the nib of a condenser:
the face
121
These are used to place amalgam:
condensers, carvers, and burnishers
122
A hollow cylindrical instrument that is filled with amalgam:
amalgam carrier
123
Is vertical or lateral condensation used to push amalgam against the prep floor?
vertical condensation
124
Is vertical or lateral condensation used to push amalgam against the vertical wall?
lateral condensation
125
Which require more force, small or large condensers?
large
126
How do we condense resin material?
We don't. It doesn't actually get condensed. Trick question
127
What size condenser should you use to pace a resin composite filling?
the largest that will fit in the area
128
What should you use to contour a convex amalgam contour?
concave-shaped carver
129
What should you use to contour a concave amalgam contour?
convex
130
claw shaped:
cleoid
131
These are good for carving occlusal surfaces:
cleioid-discoid carvers
132
What is a Walls no. 3 carver used for?
occlusal surface
133
What is the Hollenback no. 1/2 carver used for?
occlusal, proximal, and axial surfaces
134
This is used for carving proximal amalgam surface near the inter proximal contact areas and occlusal, proximal, and axial surfaces (also for place and shaping resin composite and packing cord:
interproximal carver (ICP)
135
What is no. 14L used for?
to carve proximal surface, or carving convex facial and lingual surfaces of very large amalgam restorations, also for removing amalgam overhangs from completely set amalgam
136
What should you use for carving lingual concavities of anterior teeth?
discoid carver
137
What should you use for occlusal surfaces of posterior resin composite restorations?
cleoid and discoid carvers and the hoe-shaped end of the walls no. 3 carver
138
Function of burnishers:
to make shiny or lustrous, esp by rubbing
139
What is PKT# burnisher used for?
placing direct restorations
140
What is the ovoid burnisher useful for?
final condensation of amalgam and ate initial shaping of the occlusal anatomy in amalgam
141
What are the beaver tail and ovoid burnishers useful for?
burnishing margins of cast old restorations
142
What instrument should you use to shape metal matrix bands?
burnisher
143
What should you use to pinch off freshly condensed amalgam at the margins?
large burnisher
144
These are used to "bend" cast gold near the margin to narrow the gap bw the gold and the tooth:
burnishers
145
What instrument should you use to close a marginal gap bw a gold restoration and the tooth?
narrow burnisher (beavertail burnisher)
146
This instrument is used to carry and shape tooth-colored restorative materials:
plastic instrument
147
What inst. should you use to place and contour a large, anterior resin composite rest or veneers?
plastic inst, with a large, slightly curved, paddle-shaped blade
148
What instrument should you use for placing and contouring large, anterior resin composite restorations or veneers:
Almore Gold Microfil instrument
149
What instrument should you use for placing a dam, shaping composite, and packing cord?
no. 1-2 plastic instrument
150
Selection of a rigid or flexible cement spatula is dependent upon:
the desired viscosity of the cement and personal preference
151
Should you use a rigid or flexible spatula for luting cement (glass ionomer and zinc phosphate)?
flexible
152
The very short, thin spatula is used for:
cavity liner such as CaOH liners
153
Is the blade sharp or dull if there is a glint?
dull
154
How do you sharpen chisels, hatchets, hoes, and margin trimmers?
cutting-edge bevel is placed flat against a flat stone, pushed or pulled so that the acute cutting angle is moved forward - heavy force forward, less force on back stroke
155
The bevel of chisels, hatchets, hoes, and margin trimmers should be at what angle from the face of the blade?
45 degree angle
156
T or F? The primary bevel should always be flat against the stone and the face of the blade up when sharpening.
T
157
What will happen if you make the angle of your blade too acute?
will dull quickly
158
Working end bevels of chisels, hatchets, hoes, and margin trimmers should be at __ degree angle to the face of the blade.
45 degree
159
How do you sharped a spoon, discoid carver, or cleoid carver instrument?
rotate instrument as blade is advanced the stone with bevel against the stone
160
While sharpening chisels, hatchets, hoes, and margin trimmers, the cutting edge of the blade should be kept ___ to the direction of the stroke and the bevel ____ with and against the surface of the stone.
perp, parallel
161
Another name for oscillating flat stone:
hone
162
T or F? A hone should be oiled before use.
F. it may thicken on the instrument and form a coating
163
What type of stone should you use for sharpening?
flat, white Arkansas stone or fine synthetic sharpening stone
164
Ideal placement of light source while with a pt in a chair:
behind and directed just to the side of the operator's head and into the mirror
165
What size mirror is usually used for adults?
no. 4 (7/8-inch diameter) and no. 5 (15/16-inch diameter)
166
What size mirror for constricted areas?
no. 2 (5/8-inch diameter)
167
Most common explorers:
shepherd's hook or no. 23 explorer, or cowherd explorer
168
When is a cowhorn explorer helpful?
better access for exploring proximal surfaces
169
These explorers are good for proximal surfaces:
cowhorn and no. 17
170
This instrument is useful in placing or removing items used to confine amalgam for condensation:
hemostat
171
Types of hemostats:
Halstead mosquito straight and curved
172
2 different types of grasps for holding instruments:
pen grasp and palm/ palm-thumb grasp
173
Which grasp allows for more flexibility of movement?
pen grasp
174
This grasp is for limited movement with controlled power:
palm-thumb grasp
175
When is 2-handed instrumentation needed?
make refinements of a prep more precise
176
Features of the pen grasp:
engaged by the end, not the side, of the middle finger/ ring finger is braced against the teeth
177
What types of motions are made using the palm-thumb grasp?
side-to-side, rotating, or thrusting movements
178
Features of the palm-thumb grasp:
grasped much nearer to its end, thumb braced against teeth
179
Occasion to use he palm-thumb grasp:
Class 3 prep that has a lingual access or with the Wedelstaedt chisel, usually for facial access in posterior and anterior operations, and occasionally for lingual access
180
Describe chopping motion:
in the direction of the working end of the instrument or parallel to the long axis of the blade
181
At what angle should you hold the blade for scraping?
bw 45 and 90 degrees to the surface being scraped
182
What is the orientation of the axis of the bur in relation to the long axis of the handpick with a straight handpiece?
they are the same
183
When are straight handpieces used?
adjustments to remove prostheses or adjusting and replacing a cast gold or ceramic restoration prior to insertion
184
Low-speed contra-angle is good for:
shaping and polishing with abrasive disks and impregnated rubber polishers or refining tooth preps
185
How many RPMs does the typical slow-speed have?
500-15,000 rpms
186
Typical RPMs of a high-speed:
180,000 (up to 500,000)
187
What type of handpicks do most dentists in the U.S. use?
air-turbine
188
The use of this type of high-speed is rapidly growing:
electric (200,000 rpm - very efficient)
189
What is the ideal speed of a handpiece for cutting enamel?
200,000
190
Are penetration through enamel and extension of the cavity outline more efficient at high or low speed?
high
191
T or F? High-speed should only ever be used with both water and air.
F. Can be slowed and used with only air coolant and a gentle brushing or painting motion.
192
2 types of contra-angles:
friction grip chuck and latch-type chuck
193
Another term for bur locking mechanism:
chucking mechanism
194
What type of chuck does the high-speed employ?
friction-grip bur
195
Order smallest to largest: latch type bur, friction-grip, and straight handpiece.
friction-grip, latch type bur, and straight handpiece
196
Most common bur for excavating cavity prep since 1947.
tungsten carbide bur
197
3 parts of bur:
head, neck, and shank
198
T or F? The angle of the cutting blade in burs is usually acute.
F. usually not acute
199
The angle of the cutting blade in burs is usually in the range of ___ degrees.
90
200
___-bladed burs are the most common.
6
201
Do most burs in dentistry have a positive or negative rake?
negative
202
What does negative raking of the bur provide?
increases life expectancy of bur and provides the most effective performance in low and high-speed ranges
203
Does a positive rake angle produce a more or less acute edge angle?
more
204
When would you use positive rake angles?
to cut softer, weaker substances, such as soft carious dentin
205
There are __ basic tooth prep burs.
5
206
Who made the specification standard for burs?
American National Standards Institute/ ADA
207
The American National Standards Institute/ ADA standard lists both:
the US numbers and the ISO (international standards organization) numbers
208
5 main bur types:
round, inverted cone, straight fissure, tapered fissure, pear-shaped
209
A bur with a diameter of 0.8mm will have an ISO size of:
008
210
A bur with a diameter of 1.0 mm will have an ISO size of:
010
211
These burs are good for making very smooth cuts in tooth preps, for adjusting occlusion in enamel or of a restoration, and for corning and finishing restorations:
trimming and finishing burs
212
Which have more blades, trimming and finishing burs or tooth-prep burs?
trimming and finishing burs
213
T or F? the greater the number of blades, the smoother the cut surface that can be attained.
T
214
Ho does the number of necessary blades vary?
with the diameter of the bur
215
trimming and finishing burs typically have how many blades?
8-12, 16-20, or 30
216
These are straight-side tapered burs with a safe non-cutting end so that the end will rest not he tooth surface without cutting tooth structure and allowing for contouring of the adjacent restoration:
8, 16, or 30 blades
217
When should you use diamond burs:
bonded restorations
218
T or F? Diamond burs are an acceptable substitute for carbide.
T
219
Would you want a diamond bur with a heavy or fine-grit diamond surface for contouring and polishing esthetic restorations?
fine-grit
220
T or F? Airdent (SS White) can be used with resin restorations.
T
221
Air-abrasion units are used for:
opening fissures, some cavity preps, and to facilitate repair of existing restorations with bonding technology
222
Air-abrasion technology has recently come out with a curtain of water aroudn the spray of ____
alumina particles
223
What are sonic and ultrasonic technologies used for in dentistry?
endo and conservative cavity preps
224
What type of loupes provide the finest magnification/
telescopes
225
The focal distance for loupes should be in this range:
10 -14 inches
226
What diopter range is recommended for loupes?
2-4-diopter range
227
T or F? It is believed that bond strength of restorations is increased with the use of a dam/
T
228
What gauge rubber dam material is suggested?
extra-heavy gauges (0.012 inch)
229
Why is extra-heavy gauge dam material better?
less likely to tear, better seal to teeth, and retract tissues more effectively
230
How can you extend the shelf life of dams past a year?
refrigerate
231
2 types of dam punches:
Ainsworth-type and Ivory (Hereaus Kulzer)
232
What type of frame holder can you use with a dam if you know an x-ray will be needed?
plastic, radiolucent
233
2 types of dam frames:
Metal Young frame and Plastic Nygaard-Ostby frame
234
Which dam frame is outside the dam and which is placed inside the dam, Metal Young frame and Plastic Nygaard-Ostby frames?
Metal Young frame - outside of dam
| Plastic Nygaard-Ostby frame - inside
235
These are used to place the clamp for the dam:
Ivory forceps
236
Which type of forcep allows more freedom for rotation, Ivory or Stokes?
Stokes
237
2 types of dam forceps for clamp placement:
Ivory or Stokes
238
3 types of clamps:
winged, wingless, butterfly
239
W:
wingless clamp
240
no w:
winged clamp
241
Most clamps can act as both:
rubber dam retainers or as rubber dam and gingival tissue retractors
242
T or F? The butterfly clamp can act as both a rubber dam retainers or as rubber dam and gingival tissue retractors.
F. retractor only
243
T or F? The clamp makes the seal.
F. The dam does
244
What determine the stability of a clamp?
distance bw the points of a jam, along with the stiffness of the bow of the clamp
245
Clamps should only be expanded to this width:
pass over the facial and lingual heights of contour of the tooth
246
Why shouldn't the floss be left under the dam?
causes leakage or it is in the way
247
Should waxed or unwaxed floss be used with dam placement?
waxed
248
These are used to plane rough enamel, amalgam, or resin composite contact so that the floss will pass through without shredding and so that the dam can be flossed through without tearing:
interproximal contact disk
249
Should plain metal interroiximal disks be used adjacent to gold casting?
No, can cut into the gold
250
What type of lubricant is preferred for the dam?
water-soluble (Velvachol water-miscivle vehicle)
251
Why avoid petroleum based lubricants with dam placement?
can impede bonding procedure and make inversion of the dam more difficult
252
How can you protect the MIP contacts before a restorative procedure to an occlusal surface?
coat with a clear light-cured resin or varnish
253
Hole punch size to use for clamped molars:
5
254
Hole punch size to use for unclamped molars:
4
255
Hole punch size to use for premolars:
3
256
Hole punch size to use for canines:
3
257
Hole punch size to use for MCI's:
3
258
Hole punch size to use for MLI's:
2
259
Hole punch size to use for MI's:
2
260
Dam placement for posterior restorations:
all teeth around to the central or lateral incisor on the opposite side of the same arch
261
Dam placement for anterior restoration:
first premolar to the first premolar on the opposite side of the arch
262
Why are the 1st molars exposed for anterior restorations?
to provide anchorage for the dam and to leave adequate working room
263
Where should the hole be punched in a dam for a Class V restoration?
about 1mm facial to the spot
264
What is it called when discomfort due to a clamp on tissue disappears within 1 minute?
pressure anesthesia
265
What should you do immediately after clamp placement?
Stabilize clamp with finger until you are sure the clamp is secure on the tooth
266
T or F? Inversion of the dam creates a negative pressure by the tongue and cheeks.
F. Positive pressure
267
What happens when negative pressure is created under the dam?
saliva is trapped in the field bc the valve closes
268
What happens when positive pressure is created under the dam?
pushes the valve more tightly against the tooth so that no flooding of the field occurs
269
Does positive or negative pressure seal the dam more tightly?
positive
270
What can you use to invert the dam?
floss or air
271
How can you protect the dam when working with a handpiece in the vicinity of the dam?
wedge
272
When is a second clamp used?
to retract the dam below a margin that is near, or below, the level of the gingival crest
273
What can leaving a small piece of the dam in the mouth cause?
inflammation, gingival abscess, or loss of period supprt
274
Plus side to using bite block:
pt can relax muscles of jaw
275
What other clamp is usually used along with the butterfly clamp?
posterior clamp
276
What tissue level is a mini flap procedure confined to?
keratinized gingival tissue ( and kept as short as possible)
277
How should the incision be directed when preforming gingival relaxation?
directed slightly into eh papilla and then vertically
278
Finger pressure should be maintained for how long after gingival relaxation?
2 min
279
T or F? Cavit hardens when it comes into contact with moisture.
T
280
Other methods of isolation:
Isolite, Svedopter, Hygoformic saliva ejcetor, Vac-ejector, Absorbent paper and cotton products
281
Another name for parotid duct:
Stenson's duct
282
stay tat this depth while prepping
1.5mm
283
prep to this level
where white meets the yellow
284
diaper and length of 330 bur
diameter= .8mm length = 1.6
285
Amalgam requires this type of prep:
parallel or convergent walls
286
Indirect restorations require;
divergent walls
287
Is the 330 bur used in both the high and low speed?
yes
288
2 handpicks for he slow speed:
contra-angle and slow speed handpiece(?)
