WorksheetsCavity preparation
Total questions: 20
Worksheet time: 8mins
In primary teeth which pulpal horn is higher and closer to the outer surface
Mesial pulp horn
buccal pulp horn
distal pulp horn
lingual pulp horn
Enamel rods at the cervical third in primary teeth are directed
vertically
occlusally
cervically
any of the above
in the cavity preparation, cavosurface margin will be junction between
prepared cavity wall and external surface of tooth
floor of occlusal and proximal box
proximal wall of one tooth with another
lingual wall and gingival floor
In primary teeth Gingival floor of the proximal box should be
Wide
Narrow
straight
parallel
You are restoring a primary second molar with a large MO cavity. Which of the following pulpal floor depths is MOST appropriate while maintaining adequate strength and avoiding pulp exposure?
2.5mm
1-1.5mm
3mm
2cm
The pulpal floor should be flat or saucer shaped
To increase retention
to add bulk
to allow for greater depth
to allow for greater width
Dovetail is a feature of
Convenience form
Retention form
resistance form
Outline form
Rounding of axio pulpal line angle is feature of
Resistance form
Retention form
Convenience form
Outline form
Which of the following is the MOST critical factor in determining the resistance form of a cavity preparation in a primary tooth?
Rounded internal line angles to minimize stress concentration.
Sharp internal line angles to maximize mechanical retention.
Use of enamel bevels for enhanced bonding.
A deep pulpal floor for increased bulk of restorative material.
Class V Cavities are
Cavities involving the proximal surface of primary teeth
cavities involving cusp tips of primary teeth
cavities involving incisal edge of primary teeth
cavities involving cervical region of the primary teeth
Depth of cavity in primary teeth should be
1mm
1.5cm
2mm
1.5mm
What is the primary objective of cavity preparation in primary teeth with regards to the remaining tooth structure?
To preserve as much sound tooth structure as possible
To remove all enamel and dentin
To create a smooth surface for the restoration
To reshape the tooth for aesthetic purposes
Which of the following statements regarding pulpal protection in primary tooth cavity preparation is true?
Pulp capping is always necessary.
Pulp capping is never recommended.
Pulp capping may be indicated depending on the depth of caries.
Pulp capping is only indicated in permanent teeth
When preparing a cavity in primary teeth, which material is commonly used for restoring the tooth after cavity preparation?
Amalgam
Composite
GIC
ZOE
While preparing Cl. II Cavity in Primary teeth, gingival bevel should be
Kept minimal
It is not made at all
It is more pronounced in primary teeth
Modified according to morphology of teeth
What is the purpose of a inverse taper in cavity preparation?
To increase retention of the restoration
To enhance the aesthetics of the restoration
To make the cavity preparation more comfortable for the patient
To remove carious tissue more efficiently
Which instrument is commonly used for the initial removal of carious tissue in primary teeth?
Spoon excavator
Periodontal probe
Dental mirror
Saliva ejector
As compared to permanent teeth interproximal contacts in primary teeth are
More pointed and more cervically placed
More pointed and more occlusally placed
Broader and more cervically placed
Broader and more occlusally placed
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