Dental Class I Composite Shade Selection

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Questions and Answers

What should be evaluated using a bitewing radiograph for class I composite?

  • Presence of proximal caries (correct)
  • Extent of occlusal contact
  • Quality of existing restorations
  • Thickness of the dentin-enamel junction

What impact does shade selection have on patient psychology for class I composite?

  • It influences the patient's perception of tooth moisture
  • It influences the patient's perception of tooth cleanliness
  • It affects the patient's perception of occlusal contact
  • It affects the patient's perception of restoration quality (correct)

What is the recommended lighting condition for shade selection in class I composite?

  • Free of plaque
  • Quickly to avoid eye fatigue
  • In a dark room with artificial lighting
  • Under natural daylight source (correct)

Why should the tooth be moist with saliva during shade selection for class I composite?

<p>To prevent whiter appearance due to dryness (B)</p>
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What is the purpose of creating convenience form for restoration in tooth preparation for class I composite?

<p>To facilitate proper bonding and retention (A)</p>
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What is the recommended technique for preparing class I composite restorations?

<p>Use elongated diamond bur in a conservative manner (C)</p>
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What is the primary objective of tooth preparation for class I composite?

<p>To remove all the caries of the faulty structure (C)</p>
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Why should diamond burs be used cautiously during tooth preparation for class I composite?

<p>Because they create a thicker smear layer (B)</p>
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What is the recommended depth for preparing the pulpal floor during tooth preparation for class I composite?

<p>~ 0.2 mm inside dentin-enamel junction (D)</p>
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What is the purpose of using Resin Modified Glass Ionomer Base (RMGI) when the remaining dentin thickness is between 0.5-1.5 mm?

<p>To protect the deepest aspect of the preparation (A)</p>
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What is the purpose of applying phosphoric acid gel over dentin and enamel during tooth preparation for class I composite?

<p>To demineralize the dentin and enamel surfaces (D)</p>
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Why might matrix not necessarily be required for Class I composite even when facial and lingual grooves are included?

<p>Because it decreases polymerization shrinkage stresses (D)</p>
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What is the primary purpose of covering the syringe or compule when not in use during composite insertion?

<p>To prevent pre-mature hardening of the material (C)</p>
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What does C-factor refer to in the context of class I composite?

<p>The ratio of bonded to unbonded surface (A)</p>
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Why is Resin Modified Glass Ionomer (RMGI) advantageous under composite?

<p>It has an anti-cariogenic effect (A)</p>
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How can the need for contouring and finishing after composite polymerization be minimized?

<p>By shaping the composite before light activation (A)</p>
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What is used to produce the anatomy of a restoration before light activation during class I composite?

<p><strong>All of the above</strong> (D)</p>
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What are some contraindications of class I composite?

<p>All of the above (D)</p>
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