Which One of the Following Is the Main Criterion for Failure

question 22

Multiple Choice

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

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Definitions:

Rocky Shore Zone

A coastal area where solid rock predominates, often featuring tide pools, and providing diverse habitats for marine life.

Anemones

Marine or freshwater polyps that belong to the phylum Cnidaria, characterized by their colorful appearance and a ring of tentacles surrounding a central mouth.

Euphotic Zone

The layer of a body of water that is sufficiently lit by sunlight, allowing photosynthesis by aquatic plants and phytoplankton.

Light Absorption

The process by which materials take in light energy, which can be converted into other forms of energy or result in an increase in temperature.