Dental Operative Dentistry Quiz

What are the indications for posterior composite restoration?

• Patient with high caries risk

• Presence of heavy contacts on the restoration

• Large sized lesions in posterior teeth

• Small to moderate sized lesions in posterior teeth

What is an advantage of composite restorations?

• Good esthetics

• Risk of galvanism

• High thermal conductivity

• Contains metal

What is a disadvantage of composite restorations?

• Resistance to wear

• Polymerization shrinkage

• Low cost

• Quick placement

What is the conventional design for Class I tooth preparation?

• Prepare dovetail retention features

• Keep gingival floor flat

• Prepare deep proximal walls

• Prepare faciolingual dimensions as large as possible

When is beveling done in Class II tooth preparation?

• When gingival seat is close to cementoenamel junction

• When caries are present only on proximal surface

• When minimal caries are present

• When gingival seat is supragingival

What is the main concern in premolars and first molars for composite restoration?

• Poor oral hygiene

• Occlusal stresses

• Esthetics

• High caries risk

What is the main advantage of composite restorations in terms of tooth structure?

• Destruction of tooth structure

• Conservation of tooth structure

• No effect on tooth structure

• Increase in tooth sensitivity

What is the main disadvantage of composite restorations in terms of wear resistance?

• Quick wear

• No effect on wear resistance

• Low wear resistance

• High wear resistance

What is the main advantage of composites in terms of radiopacity?

• No radiopacity

• Adequate radiopacity

• Inadequate radiopacity

• High radiopacity

What is the main disadvantage of composites in terms of polymerization shrinkage?

• No shrinkage

• Postoperative sensitivity

• Secondary caries

• Discoloration