Instruments Flashcards

1
Q

Name the typical parts of a dental instument

A

Handle, shank, blade (working end)

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2
Q

Name the instrument

A

3 Explorer

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3
Q

Name the instrument

A

3CH Pigtail Explorer

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4
Q

Name the instrument

A

17 explorer

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5
Q

Name the instrument

A

23 explorer

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6
Q

Name the instrument

A

Curved #2 Nabers Probe

For detection of furcation areas w colored markings at 3, 6 ,9 & 12mm

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7
Q

Name the instrument

A

EXD 11-12 explorer

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8
Q

Name the instrument

A

Marquis Color-coded Probe

Markings are in 3mm calibrations

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9
Q

Name the instrument

A

Michigan “O” Probe

Marking at 3, 6 and 8mm

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10
Q

Name the instrument

A

UNC 15 probe

a 15mm long marked at each mm and color coded at the 5th, 10th and 15th mm

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11
Q

Name the instrument

A

Univ of Michigan “O” Probe w Williams markings

markings at 1,2,3,5,7,8,9 & 10mm

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12
Q

Name the instrument

A

WHO Probe

0.5mm ball at tip with markings at 3.5, 8.5 and 11.5mm and color coding from 3.5-5.5mm

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13
Q

Name the probes

A

A= Marquis color coded

B= UNC 15

C= Univ Michigan “O” probe w Williams markings

D= Michigan “O” probe

E= WHO probe

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14
Q

What is this explorer?

A

3CH pigtail

Pigtail

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15
Q

What is this instrument?

A

3 explorer

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16
Q

What is this scaling instrument?

A

curette

used subgingival; each working end has a cutting surface on both sides of the blade and a rounded toe

two types- universal & Gracey

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17
Q

What is this scaling instrument?

A

Chisel

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18
Q

What is this scaling instrument?

A

file

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19
Q

What is this scaling instrument?

A

hoe

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20
Q

What is this scaling instrument?

A

sickle scaler

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21
Q

What are the basic characteristics of this instrument?

A

Sickle scaler

triangular shape

double cutting edge

pointed tip

used supragingival with pulling stroke

22
Q

Name the curette type, as seen from the toe

A

A= Universal Curette; blade is 90 degree angle to the lower shank

B= Gracey Curette; blade is 70 degree angle from the lower shank

23
Q

Describe the gracey curette

A
24
Q

What are these different Gracey designs?

A

Standard, After 5, Mini-Five, Micro Mini-Five

(all #1-2)

After 5 has a 3mm longer terminal shank

The Mini and Micro Mini have shorter blades to allow increased access and less tissue trauma

25
Q

What is this a depiction of?

A

The Gracey Curvette blade compared to the Gracey Curette. The blade is 50% shorter with upward curve. Allows closer adaptation but risks gouging/grooves in tooth surface.

26
Q

How do you determine the correct cutting edge of the Gracey curette?

A

When viewed from directly above the face of the blade, the correct cutting edge is the one forming the larger outer curve.

27
Q

What is the 2-point contact used for dental hoe?

A
28
Q

What are these and their use?

A

Diamond files for final finishing of root surfaces

29
Q

What are these and what is their use?

A

Quetin curettes; hoes with shallow half-moon radius used for the roof or floor of a furcation

30
Q

What are these?

A

Metal prophy angle with rubber cup and brush

31
Q

Which is the correcct blade angulation for scaling and root planing?

A

B- 45 to 90 degrees.

A is correct for blade insertion= 0 degrees

D is correct for gingival curettage (>90 degrees)

32
Q

What is depicted here?

A

Subgingival scaling

A- curette is inserted w blade flush against tooth

B- working angulation established 45-90 degrees

C- lateral pressure applied and scaling stroke in coronal direction

33
Q

What is the cutting edge?

A

Cutting edge of a curette is formed by the angular junction of the face and lateral surface of the instrument. When sharp, the edge is a fine line.

34
Q

Name the sharpening stones

A

Top to bottom:

Flat India stone

Arkansas Stone

Cone-shaped Arkansas stone

Ceramic Stone

Flat, 1-sided diamond sharpening cards (Extra fine, fine & medium grit)

35
Q

What is the correct sharpening angle to maintain the cutting edge of a sickle scaler or curette?

A

The sharpening stone forms a 100 to 110-degree angle with the face of the instrument. This preserves the 70-80 degree angle between the face and lateral surface.

36
Q

What is the angle for sharpening a chisel?

A

When the entire bevel contacts the stone, the angle between the instrument and stone is 45 degrees. The cutting edge will be maintained if this angle is used and the instrument pushed along the stone.

37
Q

How does the sonic scaler tip travel?

A

In an elliptical or orbital pattern with frequency 2000-6500 cycles/sec.

38
Q

How does a magnetostrictive ultrasonic device work?

A

Operates at 18000-50000 cycles per sec

Uses metal stacks that change direction as electricity is applied

Tip works in an elliptical or orbital pattern

4 working surfaces

39
Q

How many working surfaces does the piezoelectric scaler tip have? Pattern? Frequency?

A

2 surfaces, linear pattern, 18K-50K cycles/sec

40
Q

Name the instrument?

A

Kirkland gingivectomy knife

41
Q

Name the instrument

A

Orban interdental knife

42
Q

Name the instrument

Distinguishing feature?

A

Pritchard surgical curette

Surgical curettes have wider blades than those used for scaling and root planing.

43
Q

Name the instrument

A

back action surgical chisel

44
Q

Name the instrument

A

Woodson periosteal elevator

45
Q

Name the instruments

A

Ochsenbein chisels, paired w cutting edges in opposite directions

The semicircular indentation on both sides of the shank allows the instrument to engage around the tooth and into the interdental area

46
Q

What type of incision is this?

A

External bevel incision or gingivectomy

47
Q

Type of incision?

A

Internal bevel incision.

starts at the surface of gingiva and is directed apically to crestal bone. Incision from which the flap is elevated

48
Q

Name the instrument

A

Schluger interproximal file

49
Q

Name the instrument

A

Sugarman interproximal file

50
Q

What are these instruments?

A

Back action chisels