Which of the Following Is True of Tarnish

question 28

Multiple Choice

Which of the following is true of tarnish?

• A) It is very destructive to the amalgam.
• B) It results from contact with oxygen, chlorides, and sulfides in the mouth.
• C) The smoother the surface, the more it tends to tarnish.
• D) Polishing the restoration will increase the tarnish.

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Definitions:

Cognitive Development

The process of growth and change in intellectual/mental abilities such as thinking, reasoning, and understanding.

Modeling Clay

A pliable material used in arts and crafts, which can be shaped and molded into various forms, often used for creating sculptures.

Conservation

A concept in cognitive development where a child understands that changing the form of a substance or object does not change its amount, overall volume, or mass.

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or touched.