18 Questions
Which of the following is recommended for preserving cuspal strength in a tooth preparation?
Including all weakened tooth structures
What is the purpose of providing a cavosurface angle of 90° in a tooth preparation?
To strengthen the marginal ridge areas
How does the convergence of walls contribute to the retention of an amalgam restoration?
By increasing the retention of the restoration
What is the primary function of the convergence of buccal and lingual walls in a tooth preparation?
Retention of the restoration
Which form of preparation is essential to provide visibility, accessibility, and ease of operation during restoration?
Convenience form
Why is it important to include a round off all the internal line and point angles in a preparation?
To minimize micro-leakage and recurrent caries
What is the term used for extending the preparation margins to where they will be in the final preparation?
Outline form
Which of the following should be avoided when placing preparation margins in a tooth?
Ending margins in high stress areas
During tooth preparation, which of the following should be done to avoid recurrent caries?
Remove all carious and defective pits and fissures
What should be done for pulp protection in a deep preparation during tooth restoration?
Selection of base material
Which area should a dentist avoid ending preparation margins to prevent future issues?
Cusp tip and crest of the ridges
To prevent micro-leakage in an amalgam restoration, what should be ensured during tooth preparation?
Removal of unsupported enamel rods
What is involved in the removal of remaining carious dentin in large preparations with soft caries?
Using a slow-speed round bur
What is the purpose of a two-step pulpal floor in caries affected tooth preparation?
To leave the remaining unaffected floor untouched
When is a base placement required in deep preparations to protect the pulp?
In the deepest part of the preparation
What happens if there is a trace of base material left on the enamel walls of the preparation?
It leads to micro-leakage and recurrent caries
Which factor determines the use of pulp protective materials in a shallow preparation?
The depth of the preparation
What should be done to prevent micro-leakage during an amalgam restoration?
Ensure no trace of base material remains on enamel walls
Test your knowledge on the dental procedure involving the removal of remaining carious dentin. Questions cover topics like removal techniques using round bur and spoon excavator, as well as the process of preparing involved areas.
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