Dental Restoration Materials

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What is the primary advantage of indirect restorations in extensive lesions?

Lower cost

Easier contouring outside the patient mouth (correct)

Higher strength requirements

Better esthetics

Why may Amalgam be favored in patients with moderately high caries incidence?

Due to its superior esthetics

Due to its easier repair

Due to its higher strength requirements

Due to its superior adaptation and low cost (correct)

What is a characteristic of spherical alloys?

Higher mercury-alloy ratios

Higher condensation pressures

Larger particle sizes

Lower mercury-alloy ratios (correct)

What is the primary disadvantage of using spherical alloys for extensive restorations?

Difficulty in establishing proper contours and proximal contact Signup and view all the answers

Why may resin composite restorations be favored in esthetic conscious patients?

Due to their better esthetics Signup and view all the answers

What is the primary advantage of blended shapes of alloy particles?

Wider range of applications Signup and view all the answers

What is the primary advantage of using Amalgam in cases where repeated remakes are likely to occur?

Lower cost in the long run Signup and view all the answers

In what type of teeth is the soft Amalgam recommended?

Pulp capped teeth Signup and view all the answers

What is the main reason why amalgam should not be carved in a direction from the restoration to the tooth structure?

It leads to submargins and ditch formation Signup and view all the answers

What is the purpose of post-carve burnishing in amalgam restorations?

To improve the marginal seal and surface hardness Signup and view all the answers

Why should the patient avoid chewing on the restored tooth for 8-24 hours after the procedure?

To prevent cracking or fracturing of the restoration Signup and view all the answers

What is the main advantage of using high-copper alloys in amalgam restorations?

They have a tendency of self-polishing Signup and view all the answers

What is the primary function of bonding systems containing 4-META in amalgam restorations?

To improve the marginal seal and retention form Signup and view all the answers

What is the main benefit of polishing amalgam restorations?

It improves the marginal adaptation of the restoration Signup and view all the answers

What is the main disadvantage of premature finishing and polishing of amalgam restorations?

It interferes with the crystalline structure of the hardening amalgam Signup and view all the answers

What is the main advantage of using adhesive resins in amalgam restorations?

They improve the marginal seal and retention of the restoration Signup and view all the answers

What is the primary reason for not over-tightening the band during posterior resin restorations?

To prevent flexing of the cusps and resulting post-restoration sensitivity Signup and view all the answers

In which type of teeth is the use of a specific technique indicated for amalgam restorations?

Tilted and partially erupted teeth Signup and view all the answers

What is the primary advantage of using capsules as the form of alloy/mercury supply?

Elimination of mercury spills and exposure to mercury vapor Signup and view all the answers

What is the critical factor in the selection of the amalgam alloy?

All of the above Signup and view all the answers

What is the primary disadvantage of using the technique described for resin restorations?

It does not offer optimal contour and contact Signup and view all the answers

What is the purpose of the trituration step in the amalgam manipulation technique?

To mix the alloy and mercury Signup and view all the answers

What is the consequence of inaccurate alloy/mercury ratio in the amalgam mixture?

Weakened mechanical properties Signup and view all the answers

What is the advantage of using the described technique for amalgam restorations?

It allows for better visibility Signup and view all the answers