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36 Cards in this Set
- Front
- Back
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What is a sickle scaler used for? |
remove calculus deposits from the crowns of teeth |
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Sickle scalers can be used on what? |
enamel surfaces NOT on root surfaces |
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what kind of back does a sickle scaler have? |
Pointed |
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Newer sickle scalers have working ends with what kind of backs |
Rounded |
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Does the sickle scaler have a pointed or rounded tip |
Pointed |
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What cross section does a sickle scaler have |
triangular |
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how many cutting edges per working end does a sickle scaler have |
2 |
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The face is where to the lower shank |
Perpendicular |
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ANTERIOR SICKLE SCALERS |
........... |
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Anterior sickle scalers can be used on what teeth? |
only anterior sextants |
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Posterior sickle scalers can be used on what teeth |
designed for posterior sextants but can also be used on anterior teeth |
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The face on the sickle scaler is periodontal to the lower shank because why? |
cutting edges are level with one another |
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Level cutting edges mean that the lower shank must tilt which way toward the tooth surface to establish correct angulation |
Tilted slightly towards the tooth |
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On anterior teeth is it a single or double ended instrument |
one Single ended instrument |
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On posterior teeth is one or doubled ended instruments used? |
one double ended instrument |
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what is the primary function of a sickle scaler? |
removal of medium to large sized calculus deposits |
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Where is the sickle scaler excellent for calculus removal on anterior teeth |
interproximal surfaces |
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Where is the sickle scaler excellent for calculus removal on posterior teeth? |
enamel surface apical to the contact areas |
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What of the sickle scaler is adapted to the tooth? |
Tip-third of cutting edges |
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What is the correct angulation for adapting the sickle scaler to the tooth |
70-80 degrees |
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How much pressure is used against the tooth surface? |
Moderate to firm |
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What type of strokes are used for the anterior sickle scaler? |
controlled short strokes |
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Anterior teeth and on the mesial and distal surfaces of Posterior teeth what type of stroke is used? |
Vertical strokes |
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On posterior facial and lingual surfaces what type of stroke is used? |
Oblique |
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When are horizontal strokes used/ |
at the line angles of posterior teeth and
midlines of the facial and lingual surfaces of anterior teeth |
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Oblique strokes are used on which teeth and surfaces? |
facial and lingual surfaces of posterior teeth |
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Vertical strokes are used on which teeth and surfaces? |
anterior teeth
mesial and distal surfaces of posterior teeth |
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TRUE OR FALSE
strokes should be limited to areas where calculus is present |
TRUE |
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On a sickle scaler the face of the working-end is at what degree to the lower shank? |
90 degrees |
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Posterior Sickle scaler Choosing the right working end how should the lower and functional shank appear? |
Lower shank is parallel to the distal surface Functional shank up and over
Posterior= parallel up and over |
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The inner cutting edge is closer or farther from the instrument? |
Closer |
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The outer cutting edge is closer or farther from the instrument |
Farther |
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What surfaces is the inner cutting edge used? |
Distal surfaces |
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What surfaces is the outer cutting edge used for? |
facial lingual and mesial |
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How many cutting edges does a posterior sickle scaler have? |
4 |
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The triangular cross section design is used for what? |
Limits use to above the gingival margin |
