Dental Pulp Protection and Temporary Crowns

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What is the reason for not using zinc oxide eugenol as a sub-base?

It is used only for temporary crowns

It inhibits the polymerization of resins (correct)

It promotes polymerization of resins

It is not suitable for cavity preparation

When is it preferable to use a glass ionomer base?

When the tooth preparation is for a temporary crown

When the tooth preparation is shallow

When the tooth preparation is deep (correct)

When the tooth preparation is for a permanent crown

What is the purpose of applying a thin layer of composite at the gingival margin?

To prevent decay from reoccurring (correct)

To strengthen the gingival margin

To improve bonding between tooth and composite

To add aesthetics to the restoration

What is the recommended time for light curing each increment of composite?

20 to 30 seconds Signup and view all the answers

Why is it important to place composite in small increments?

To reduce polymerization shrinkage Signup and view all the answers

What is the purpose of using a bonding agent?

To bond the composite to the tooth structure Signup and view all the answers

What is the recommended way to contour composite restorations?

Using a sharp hand instrument Signup and view all the answers

Why is it important to cure the composite at the gingival margin?

To prevent decay from reoccurring Signup and view all the answers

What is the primary reason for starting the sealing process from the deeper areas of the cavity?

To minimize the stress generated by polymerization shrinkage Signup and view all the answers

What is the purpose of using abrasive finishing strips in a specific pattern during class III restoration?

To avoid damaging the contact point Signup and view all the answers

What is the primary tool used for gross contouring of the proximal restoration?

Small and thin disc rotating from 90 degrees Signup and view all the answers

What is the purpose of evaluating the occlusion in centric position and during various mandibular movements?

To ensure proper contacts and avoid open contact points Signup and view all the answers

What is the primary material used for final polishing of a composite restoration?

Rubber-polishing points Signup and view all the answers

What is the factor that affects the stress generated by polymerization shrinkage during the restoration process?

Cavity configuration factor Signup and view all the answers

What is the purpose of using a series of abrasive finishing strips during the restoration process?

To finish the contact areas Signup and view all the answers

What is the primary consideration during the insertion phase of the restoration process?

The cavity configuration factor Signup and view all the answers

What is the primary aspiration of people regarding their teeth?

To have properly aligned and healthy teeth in light tones Signup and view all the answers

What should be done before whitening devitalized teeth?

Repeat endodontic treatment if necessary Signup and view all the answers

What is a contraindication for internal bleaching?

Incorrect root canal treatment Signup and view all the answers

What is the purpose of sealing the apical part of the duct in internal bleaching?

To avoid leaking and root resorption Signup and view all the answers

What is the consequence of restoration in terms of oral health?

It only repairs damage Signup and view all the answers

What is the relationship between the longevity of a restoration and its extension?

Indirectly related Signup and view all the answers

What is the purpose of using rubber dam in internal bleaching?

To avoid injury of soft tissue Signup and view all the answers

What is placed at the end of the at-home bleaching to avoid possible resorptions?

Calcium hydroxide Signup and view all the answers