30 Questions
What is the purpose of using a fit checker?
To verify seating of the restoration
When is the exam preview expected to be sent out?
Early tomorrow morning
What is the value of using fit checker with metal restorations?
It verifies seating even if it appears perfect
Why is milling considered more successful with milled restorations?
It ensures better fit
What does the speaker expect to be included in the exam?
Topics from the exam preview
What is the purpose of the fit checker according to the speaker?
To ensure everything fits well
What is the recommended option to remove residual silicone and debris from a gold crown?
Sandblasting
When should occlusion be checked for a crown?
After confirming proper seating of the crown
Which type of crowns can have their margins finished with metal?
Gold crowns
What is used for removing a small amount from slightly bulky margins without compromising the seal?
Rubber wheel instrument
What allows burnishing of the margins to improve confluence and seal?
Cast gold restorations
Where is burnishing of the gold margin typically performed?
On the occlusal, buccal, or lingual surfaces
What is crucial before cementing a restoration?
Proper cleaning and drying of the inside of the restoration
What is important for the choice of cement for indirect restorations?
Adhesive properties to the preparation and restorative material
What is desired for the cement to flow well during seating?
Low film thickness
What is crucial to avoid irritation to the sulcus lining and the pulp?
Biocompatibility of the cement
What is the goal for finding the ideal cement for indirect restorations?
Ensuring a durable and strong bond while minimizing irritation and maintaining a low film thickness
What plays a crucial role in the long-term success and durability of the restoration?
The choice of cement for indirect restorations
What is the recommended lubricant for finishing dental restorations?
Vaseline
Which polishing compound is used with a soft bristled brush on a slow speed handpiece?
Tripoli
What is the alternative option for obtaining a gold polishing kit?
Purchase from vendors like Shofu
Which solvent is recommended for removing junk from the inner surface before cementing?
Carve a dry
What is the purpose of using a rubber wheel in dental restoration?
Eliminating gross scratches and ensuring correct contour
What type of polishing wheel is used for achieving the final luster in dental restoration?
Soft wheel (felt or shammy)
What is the purpose of using fit checker in dental restorations?
To identify issues with seating that may not be visible visually or on radiographs
What should be done if the restoration seats well after using fit checker?
Proceed to the next step
When is it appropriate to perform sandblasting in dental restorations?
After using fit checker to remove residual silicone and improve cement wet ability
What caution should be taken when addressing blebs and dye defects in dental restorations?
Avoid making the seating worse
Why is it important to seek advice before attempting to address poor seating issues?
To avoid reaming or modifying the restoration incorrectly
What is the recommendation regarding the use of solvents internally during the sandblasting process?
To avoid using solvents internally during the process
Study Notes
Using Fit Checker and Sandblasting in Dental Restorations
- Fit checker is used to identify issues with seating of dental restorations that may not be visible tactically, visually, or on radiographs.
- Fit checker can help identify reasons for poor seating, such as thin or thick areas, blebs, or dye defects.
- It is important to seek advice from an instructor or faculty member before attempting to address poor seating issues by reaming or modifying the restoration.
- Blebs and dye defects can be addressed under supervision, but caution is advised to avoid making the seating worse.
- Dropping a dye during the analog restoration process can lead to seating issues, but minor defects may be fixable by grinding a small amount of the tooth, under faculty supervision.
- After using fit checker, if the restoration seats well, the next step is to proceed; if not, the reason for poor seating should be determined and fixed under supervision.
- Sandblasting the internal surface of the restoration after fit checking can remove residual silicone, create micro-irregularities for retention, and improve cement wet ability.
- Sandblasting should be done with caution, using aluminum oxide grit, and should only be performed on zirconia or metal restorations, not on lithium silicate or bond ceramic restorations.
- Chair-side or laboratory sandblasting can be used, with the latter being preferable due to better containment.
- It is important to use the right grit and not overdo sandblasting, and to avoid using solvents internally during the process.
- The use of fit checker and sandblasting in dental restorations can help ensure proper seating and cementation, improving the longevity and effectiveness of the restoration.
- Students are advised to seek supervision and guidance from faculty members when using fit checker and sandblasting in dental practice.
Test your knowledge on using fit checker and sandblasting in dental restorations with this quiz. Learn about identifying and addressing poor seating issues, the precautions to take before modifying restorations, and the proper techniques for sandblasting to improve cementation.
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