Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Perio > Instruments > Flashcards

Instruments Flashcards

(56 cards)

Start Studying
1
Q

What are the probs in a perio kit

A

WHO BPE probe (screening)
-ball end 0.5mm
-3.5-5.5mm
-8.5-11.5mm

UNC 15 probe
-Used for 6 point pocket chart, check pockets
-grade at every mm
-starts black 4-5mm
-second 9-10mm
-third 14-15mm

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

What connects handle to end of blade

A

Shank

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

How should a lower shank be positioned in respect to the tooth

A

Positioned at long axis to the tooth

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

What are the 8 instruments in a PMPR kit

A

Mini sickle or point scaler​

Universal Columbia Curette​

Hoe scaler x 2 ​
a) red 156-157​

b) yellow 134-135​

Gracey Curettes x 4​
a) grey 1-2​

b) green 7-8 ​

c) orange 11-12​

d) blue 13-14
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does a finger rest do

A

The finger rest is the support/stability on which a lever (our finger) turns.​

Control​

Stability​

Safety to prevent injury​

Patient comfort

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

What is the positioning of an ideal finger rest

A

Ideal finger rest:

Tooth as close to tooth treating​

Prevents injury if patient moved suddenly or instrument slips​

Stable tooth rather than soft tissues(lips/cheeks) which can move/slide around​

May need to use a rest further away in difficult access e.g. treating upper left posteriors palatally , using upper right palate as a rest

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

What technique prevents injury to the hand

A

Neutral wrist
The wrist should be straight ​

Hand and forearm should be in the same horizontal plane​

Reduces risk of pressure of median nerve in wrist ​

Helps reduce risk of carpal tunnel syndrome​

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

What should be done prior to instrumentation of a tooth

A

Brobe the area prior to understand the depth and extant of pockets

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

What instrument is used only supragingivally

A

Mini sickle scaler

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

Where is the mini sickle scaler used

A

All buccal / lingual embrasures supragingival or just into into gingival margin​

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

Why is the mini sickle scaler not suitable for subgingival use

A

the sharp point can groove/damage the root surface ​

The pocket wall could be damaged

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

What are the properties of a mini sickle scaler

A

Curved blade triangular in cross section converging to a point​

Triangular in cross section​

Point of scaler must always be moved towards and into the embrasure

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

What are the red instruments

A

Mini sickle scaler
Universal columbia curette

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

How is the universal columbia curette used

A

Use light lateral force against the root surface to base of pocket , engage calculus with blade at 90°​

Use short overlapping strokes upwards

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

What are the properties of a Universal columbia curette
Red hoe

A

Curved spoon shaped blade with 2 cutting edges to form a rounded toe​

No sharp corners so can be used both supragingival and subgingival in all areas

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

What is the difference between the red and yellow hoes

A

Red 156-157 for mesial and distal surfaces​

Yellow134-135 for buccal lingual surfaces​

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

What can the red and yellow hoes be used for

A

supra/subgingival calculus removal​

All surfaces especially for gross calculus removal

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

How many cutting edges do hoes have

A

Single cutting edge

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

What does the single cutting edge of the hoes mean for use

A

Limited access if pocket is narrow​

Use a curette to fully smooth surface after using hoes

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

What are the colours ofthe Gracey curettes

A

Grey
Green
Orange
Blue

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

Where can each Gracey be used

A

Grey 1-2 anterior sextant​

Green 7-8 buccal/lingual posterior sextant​

Orange 11-12 mesial posteriors sextants​

Blue 13-14 distal posterior sextants

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

What are the properties of the Gracey curettes

A

The tip of the blade curves in 2 planes​

Area specific​

One cutting edge​

Offset blade

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

What angle are the gracey curettes preset at

24
Q

Which edge of the Gracey is the cutting edge

Study These Flashcards
A

Larger outer curve

25
How is the Gracey curette used
Confirm correct cutting edge by gently adapting it to the tooth with the lower shank parallel to the long axis to the tooth.​ Only the back of the instrument can be seen from above if correct.​ Use finger rest​ Use vertical and diagonal strokes
26
What position is used to treat teeth 43-33 labial and ligual
7 oclock
27
Where should the operator be to treat the right hand buccal posterior teeth aside
9 oclock
28
At 11 oclock what teeth surfaces can the operator reach
44-48 lingual 34-38 buccal 13-23 labial and palatal 14-18 palatal 24-28 Buccal and palatal
29
When are hand instruments preferable
Communicable diseases where aerosol may increase risk of infection e.g. Tuberculosis, Coronavirus​ Difficulty in swallowing lots of water from ultrasonic– Parkinson's disease, Multiple sclerosis or severe gag reflex​ Cardiac pacemaker – check make and model ( patients have details given to them to check online or check with Cardiology) prior to using ultrasonic​ Access to certain areas of tooth can be difficult , hand scalers may offer better access Demineralised areas – can be remineralising but removed by powerful ultrasonic​ Sensitivity – exposed dentinal tubules, recession, children with large pulp horns​ Children may be less able to tolerate ultrasonic scalers due to dental anxiety ​ Restorations-porcelain / composite can be marked by ultrasonic​ Titanium implants – ideally have implant inserts onto ultrasonic tips but may not be available
30
Why are instruments sharpened
To improve calculus/biofilm removal​ Less force and time is required with sharp instruments
31
How is instrument sharpness tested
An acrylic test stick
32
How are instruments sharpened
Arkansas hand stone- natural stone from aluminium oxide with oil for steel instruments​ Hoes require a diamond abrasive without oil as they have tungsten carbide ​ Sharpening machines will be quicker​ A sharpening service will maintain your scalers and advise when to replace
33
What are the benefits to ultrasonic scalers
Equally as effective as hand instruments​ More time efficient if patient able to tolerate water/suction​ Can be more efficient for stain removal​ Range of tips available for different areas requiring access​ Must monitor wear of scaling tips as wear can reduce effectiveness
34
What are the properties of an ultrasonic scaler
Electric power generator​ Handpiece( black barrel)​ Insert with working tips​ Power is converted to about 25 000 microscopically small strokes per second​ Water is needed to cool vibrating tip
35
What is used along side an ultrasonic scaler
High volume suction
36
Where is a scaling tip placed when not in use
FLAT
37
What can be used to remove gross calculus and stain
10 design 1 bend shank​ Tapered tip​ Supragingival or​ subgingival use
38
What is the #100 design
Gross removal of mod-heavy calculus & stain​ 2 bend shank ​ Tapered tip​ Supragingival or ​ subgingival use​
39
What features does a #1000 design have
Gross removal of mod-heavy tenacious calculus​ 3 bend shank ​ Tapered tip​ Access line angles & ​ interproximal surfaces​ Supragingival use
40
How many bends does a 3 design have
1
41
What are the properties of a #3 design
(best use for supragingival gross calculus which needs broken up) Gross removal of mod-heavy calculus & stain​ 1 bend shank ​ Tapered blunt tip​ Supragingival use
42
What tips are used for subgingival narrow pockets
Used at low power Focused Spray Slimline 1000
43
When should a slim #10 and slim #1000 be used
Slim #10 -one bend better for >4mm PD anterior surfaces only Slim#1000 -triple bend for up to 4mm depth in anterioror posterior
44
What are the benefits of THINSert ultrasonic inserts
9° backward angle​ -Allows for easier adaptation 47% thinner diameter​ -Provides access in difficult areas without loss of tactile sensitivity​ Enhanced durability​ -Designed for light to moderate calculus and deplaquing​ -Allows use at a higher power setting
45
What tyoes of water flow design in ultrasonic instruments are there
External flow ultrasonic insert​ ​ ​ Internal water flow insert through base of insert ​ ​ Internal water flow insert through tip
46
What flow of water is desirable
Constant flow with fine mist and some droplets showing
47
What are the diameter tip options
Standard Slim Thin
48
If a tip has lost 2mm of length how much less efficient is it
50%
49
What is a wear guide
Comparison tool for tips to see how much loss of tip has occured
50
How line should a tip be above on a wear guide
Atleast above the red line to be effective
51
What directions are used to remove calculus
Olblique and vertical movements
52
Where must the active portion of the tip be to remove deposits
In contact with the involved surface
53
How does working from the molars forward make it easier for the patient
Relieved extent of mouth opening as you work forward
54
When might an insert break off
Incorrect power setting​ Insert did not match application​ Improper sterilization & maintenance
55
When would an insert overheat
Improperly adjusted water ​ NOT filling handpiece with water prior to insert insertion​ Use of an unserviceable insert ​ Adequate water pressure
56
What steps should you follow when treating a perio patient
Choose the correct instrument (s)​ If using USS set it up, set the water spray/power setting​ Choose the patient position (both head position chair position​ Choose your seating position​ Choose the light position​ Identify your finger rest​ Remove the plaque/calculus​ Check you’ve done the job properly​ Continue treatment (eg next tooth)

Perio (7 decks)

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