Fit Checker and Sandblasting in Dental Restorations Quiz
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Questions and Answers

What is the purpose of using a fit checker?

  • To verify seating of the restoration (correct)
  • To enhance the appearance of the restoration
  • To speed up the milling process
  • To check the thickness of the restoration

When is the exam preview expected to be sent out?

  • In a few days
  • Early tomorrow morning (correct)
  • Later in the day
  • It's uncertain

What is the value of using fit checker with metal restorations?

  • It enhances the durability of the restoration
  • It reduces the need for redoing the restoration
  • It speeds up the seating process
  • It verifies seating even if it appears perfect (correct)

Why is milling considered more successful with milled restorations?

<p>It ensures better fit (B)</p> Signup and view all the answers

What does the speaker expect to be included in the exam?

<p>Topics from the exam preview (D)</p> Signup and view all the answers

What is the purpose of the fit checker according to the speaker?

<p>To ensure everything fits well (B)</p> Signup and view all the answers

What is the recommended option to remove residual silicone and debris from a gold crown?

<p>Sandblasting (C)</p> Signup and view all the answers

When should occlusion be checked for a crown?

<p>After confirming proper seating of the crown (D)</p> Signup and view all the answers

Which type of crowns can have their margins finished with metal?

<p>Gold crowns (D)</p> Signup and view all the answers

What is used for removing a small amount from slightly bulky margins without compromising the seal?

<p>Rubber wheel instrument (A)</p> Signup and view all the answers

What allows burnishing of the margins to improve confluence and seal?

<p>Cast gold restorations (C)</p> Signup and view all the answers

Where is burnishing of the gold margin typically performed?

<p>On the occlusal, buccal, or lingual surfaces (C)</p> Signup and view all the answers

What is crucial before cementing a restoration?

<p>Proper cleaning and drying of the inside of the restoration (A)</p> Signup and view all the answers

What is important for the choice of cement for indirect restorations?

<p>Adhesive properties to the preparation and restorative material (B)</p> Signup and view all the answers

What is desired for the cement to flow well during seating?

<p>Low film thickness (A)</p> Signup and view all the answers

What is crucial to avoid irritation to the sulcus lining and the pulp?

<p>Biocompatibility of the cement (A)</p> Signup and view all the answers

What is the goal for finding the ideal cement for indirect restorations?

<p>Ensuring a durable and strong bond while minimizing irritation and maintaining a low film thickness (C)</p> Signup and view all the answers

What plays a crucial role in the long-term success and durability of the restoration?

<p>The choice of cement for indirect restorations (C)</p> Signup and view all the answers

What is the recommended lubricant for finishing dental restorations?

<p>Vaseline (B)</p> Signup and view all the answers

Which polishing compound is used with a soft bristled brush on a slow speed handpiece?

<p>Tripoli (A)</p> Signup and view all the answers

What is the alternative option for obtaining a gold polishing kit?

<p>Purchase from vendors like Shofu (C)</p> Signup and view all the answers

Which solvent is recommended for removing junk from the inner surface before cementing?

<p>Carve a dry (B)</p> Signup and view all the answers

What is the purpose of using a rubber wheel in dental restoration?

<p>Eliminating gross scratches and ensuring correct contour (A)</p> Signup and view all the answers

What type of polishing wheel is used for achieving the final luster in dental restoration?

<p>Soft wheel (felt or shammy) (D)</p> Signup and view all the answers

What is the purpose of using fit checker in dental restorations?

<p>To identify issues with seating that may not be visible visually or on radiographs (D)</p> Signup and view all the answers

What should be done if the restoration seats well after using fit checker?

<p>Proceed to the next step (C)</p> Signup and view all the answers

When is it appropriate to perform sandblasting in dental restorations?

<p>After using fit checker to remove residual silicone and improve cement wet ability (C)</p> Signup and view all the answers

What caution should be taken when addressing blebs and dye defects in dental restorations?

<p>Avoid making the seating worse (D)</p> Signup and view all the answers

Why is it important to seek advice before attempting to address poor seating issues?

<p>To avoid reaming or modifying the restoration incorrectly (A)</p> Signup and view all the answers

What is the recommendation regarding the use of solvents internally during the sandblasting process?

<p>To avoid using solvents internally during the process (B)</p> Signup and view all the answers

Flashcards

Fit Checker

A tool used to verify the seating of restorations, especially metal restorations, to ensure a perfect fit even if it appears visually sound.

Milling

A technique that creates restorations with a close and accurate fit, ensuring a better outcome than traditional casting methods.

Sandblasting

Cleaning technique using compressed air and abrasive particles to remove debris and improve surface properties of restorations, especially gold crowns.

Seating Check

The process of verifying the restoration's fit before cementation, checking for tight seating and identifying potential issues.

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Gold Crown Margins

Gold crowns allow for finishing their margins with metal, providing a durable and visually appealing finish.

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Rubber Wheel Instrument

A tool used to gently remove excess material from slightly bulky margins without compromising the seal, preserving the crown's integrity.

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Burnishing

A process used to enhance the fit and seal of gold restorations by smoothing out any gaps or irregularities along the margins.

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Cleaning and Drying Restoration

The process of thoroughly cleaning and drying the interior of a restoration before cementation, ensuring a clean surface for bonding.

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Cement Adhesion

The most crucial factor in selecting a cement for indirect restorations is its ability to adhere effectively to both the dental preparation and the restorative material.

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Low Film Thickness

The desired property of cement to allow it to flow smoothly and evenly during seating, minimizing gaps and ensuring optimal bonding.

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Biocompatibility

The property of a cement that assures it won't irritate the tissues surrounding the restoration, safeguarding both the gums and the pulp.

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Ideal Cement Properties

The overall objective in choosing the ideal cement for indirect restorations is to achieve a durable and strong bond while minimizing any potential irritation to the surrounding tissues.

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Cement Importance

The cement used in indirect restorations plays a crucial role in the long-term durability of the restored tooth, ensuring its stability and function.

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Vaseline

A lubricant commonly used for finishing dental restorations, aiding in smoothing the surface and reducing friction during polishing.

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Tripoli

A polishing compound used with a soft bristled brush on a slow-speed handpiece to refine the surface of restorations, achieving a smoother finish.

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Soft Wheel Polishing

A soft wheel, typically made of felt or chammy, used for achieving the final luster and shine of dental restorations after initial polishing.

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Carve a Dry

A solvent used for cleaning the inner surface of restorations before cementation, removing any debris or residue that could compromise the bond.

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Rubber Wheel

A tool used to remove significant scratches and refine the contour of a restoration, ensuring a smooth surface and proper shape.

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Fit Checker

A key tool used in dental restorations to detect any seating discrepancies that might not be apparent visually or on radiographs, ensuring a perfect fit.

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Addressing Seating Issues

The process of addressing any seating imperfections identified through the fit checker, ensuring a perfect fit before proceeding.

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Sandblasting After Fit Check

A recommended technique after using the fit checker to remove residual silicone and debris from the restoration, improving the cement's ability to wet the surface.

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Addressing Blebs and Dye Defects

When addressing blebs and dye defects in restorations, caution must be taken to avoid worsening the seating, preserving the integrity of the restoration.

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Seeking Advice for Poor Seating

It is important to consult with a professional before modifying a restoration with poor seating, ensuring appropriate techniques and avoiding potential damage.

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Solvent Use During Sandblasting

The use of solvents internally during the sandblasting process is not recommended due to potential risks and is usually not necessary.

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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.

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Conventional Cements PDF

Description

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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