Class V Composite Tooth Preparations
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Questions and Answers

Where do Class V restorations occur?

Gingival 1/3 of facial & lingual surfaces of all teeth.

What are some treatment options for Class V caries? (List 5)

  1. Prevention & reversal methods, 2) Glass ionomer restoration, 3) Conservative composite restoration, 4) Conventional composite restoration, 5) Amalgam restoration.

What are the initial clinical procedures before cutting a tooth? (List in order, there are 3)

  1. Anesthesia, 2) Shade selection, 3) Isolation.

What are the steps for Class V prep? (List 4)

<ol> <li>Convenience form, 2) Remove defect, 3) Finish enamel margins, 4) Condition the cavity.</li> </ol> Signup and view all the answers

Is there an ideal Class V restoration in the clinic?

<p>False</p> Signup and view all the answers

When do we use box form for a Class V restoration? Why?

<p>Only in dentiform; there is a chance for greater shrinkage and it causes sharp angles.</p> Signup and view all the answers

For a clinical Class V restoration, we can consider placing a bevel on what type of tooth material? Where does the bevel begin?

<p>Put bevel on enamel, starting the bevel at the DEJ.</p> Signup and view all the answers

Do we place an enamel bevel on a Class V amalgam restoration?

<p>False</p> Signup and view all the answers

What are the benefits of an enamel bevel?

<p>Improves esthetics and is believed to decrease microleakage.</p> Signup and view all the answers

What do we need to consider for shade selection on a Class V?

<p>The differences of opacity between enamel and dentin; choose a more opaque shade for dentin and a less opaque shade for enamel.</p> Signup and view all the answers

What is the sandwich technique?

<p>Use two different materials; one material (glass ionomer) bonds to the axial wall of the preparation, and the second material (resin composite) is bonded to the surface of glass ionomer.</p> Signup and view all the answers

What burs can be used for a Class V restoration?

<p>Round No 1 or No 2; Pearl No. 329 or 330.</p> Signup and view all the answers

Study Notes

Class V Composite Tooth Preparations

  • Class V restorations occur in the gingival third of the facial and lingual surfaces of all teeth, excluding caries originating from the occlusal surface.

  • Treatment options for Class V caries include prevention and reversal methods, glass ionomer restoration, conservative composite restoration, conventional composite restoration, and amalgam restoration.

  • Initial clinical procedures before cutting a tooth are anesthesia, shade selection, and isolation. Checking occlusal relationships is not included in Class V procedures.

  • Steps for Class V preparation involve:

    • Convenience form creation
    • Defect removal
    • Finishing enamel margins
    • Conditioning the cavity
  • An ideal Class V restoration does not exist in clinical settings, although an ideal preparation is achievable in simulation clinics.

  • Box form for Class V restoration is used only in dentiform due to a higher chance of shrinkage, which can create sharp angles.

  • A bevel can be placed on enamel for clinical Class V restorations, starting at the dentin-enamel junction (DEJ).

  • Enamel bevels are not used for Class V amalgam restorations; they are exclusive to composite restorations.

  • Benefits of an enamel bevel include improved aesthetics and a reduction in microleakage.

  • For shade selection in Class V restorations, consider the opacity differences between enamel and dentin. A more opaque shade should be used for dentin, while a less opaque shade is suitable for enamel.

  • The sandwich technique involves using two different materials: glass ionomer bonds to the axial wall, and resin composite bonds to the surface of the glass ionomer.

  • Burs suitable for Class V restoration include round No. 1 or No. 2, and pearl No. 329 or 330.

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Test your knowledge on Class V composite tooth preparations with these flashcards. This quiz covers the locations of Class V restorations and various treatment options available for Class V caries. Ideal for dental students and professionals!

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