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WorksheetsDHE 120 Week 10
Total questions: 30
Worksheet time: 22mins
A periodontal instrument used to remove medium to large sized supragingival calculus deposits from the crowns of the teeth.
It should not be used on root surfaces subgingivally.
(a)
Pointed tip, triangular in cross section, and 2 cutting edges per working end. Name the instrument.
(a)
The face of the sickle scaler is (a) to the lower shank.
Correct angulation for the sickle scaler is achieved by tilting the lower shank toward the tooth surface.
This creates a face to tooth surface angulation of (a) degrees
When choosing the correct working end for a double-ended posterior sickle scaler, the terminal shank should be parallel to the distal surface. Is this the correct working end?
Yes
No
When identifying the cutting edges of the posterior sickle scaler, the inner cutting edges are used on (a) surfaces
When identifying the cutting edges of the posterior sickle scaler, the outer cutting edges are used on ________ surfaces. Select all that apply.
Facial
Lingual
Mesial
Distal
Which photo exhibits the correct angulation for the posterior sickle scaler?
Left photo
Right photo
This is periodontal instrument used to remove small and medium sized calculus deposits from the crowns and roots of teeth.
This can be used on both anterior and posterior teeth. (for clinic however, you will use this only on posterior teeth)
(a)
This instrument has a rounded back and toe, 2 cutting edges per working end, and semicircular in cross section.
(a)
The face of the universal curet is (a) to the lower shank.
You can use the universal curet subgingival and supragingival.
True
False
This is a periodontal instrument used to remove light calculus deposits from the crowns and roots of the tooth.
Area- specific curet
Universal curet
Sickle scaler
The area-specific curet is similar to the universal curet in that it has a rounded toe & back, and is semicircular in cross section.
True
False
An area- specific curet has cutting edges that are (a) , whereas the universal curet has parallel cutting edges.
In regards to the relationship of the face to the lower shank, an area- specific curet has a (a) face in relation to the lower shank. This causes 1 cutting edge to be lower than the other on each working end.
Only the lower cutting edge is used to calculus removal for area- specific curet's. This is called the working cutting edge.
True
False
Working cutting edge
Non-working cutting edge
This stroke is used to remove residual, granular calculus, plaque & byproducts from exposed root surfaces &/or in deep pockets.
It is used with all curettes.
Light, shaving stroke of moderate length, light pressure applied against tooth
Root debridement stroke
Assessment stroke
Calculus removal stroke
This stroke is used to lift or pop calculus deposits off tooth (NOT shave).
It is used with curettes, sickle scalers & periodontal files.
Brief, short, tiny, biting stroke-moderate pressure is applied against tooth
Root debridement stroke
Assessment stroke
Calculus removal stroke
This stroke is used to evaluate tooth surface. It is used with explorers to locate calculus deposits & instruments to find & remove calculus.
Flowing, feather-light stroke of moderate length, contacts tooth but no pressure applied
Root debridement stroke
Assessment stroke
Calculus removal stroke
Which stroke will you relax your fingers between each stroke?
Root debridement stroke
Assessment stroke
Calculus removal stroke
It's ok to make a series of back and forth (up and down) strokes when doing the calculus removal stroke.
True
False
A calculus deposit with the outermost layer removed is called a:
(a)
Instrumentation strokes are made in a (a) direction, away from the soft tissue base of the sulcus pocket.
On anterior teeth, vertical strokes are used on what surfaces. Select all that apply.
Facial
Lingual
Mesial
Distal
On posterior teeth, vertical strokes are used on what surfaces. Select all that apply.
Facial
Lingual
Mesial
Distal
On anterior & posterior teeth, oblique strokes are used on what surfaces. Select all that apply.
Facial
Lingual
Mesial
Distal
Horizontal strokes are used at the line angles of posterior teeth, in furcation areas, direct facial or lingual (especially for anterior teeth)
True
False
You should only use the toe-third or tip-third for calculus removal.
True
False
