Which one of the following is the main criterion for failure of a high-copper dental amalgam restoration?
A) Accumulation of black or green tarnish on exposed surfaces
B) Marginal ditching along occlusal margins
C) Creep of the restoration out of the cavity preparation in proximal areas
D) Wear facets along the occlusal contact areas
E) None of the above
Correct Answer:
Verified
Q20: Which of the following materials undergoes problematic
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Q22: Which component of the dentin bonding system
Q23: What is required to produce good bond
Q24: Which of the following restorations requires sur?face
Q26: What is the melting temperature of the
Q27: How do self-etching bonding systems work?
A)Acidic monomers
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