Wedges Are Used ____________

question 30

Multiple Choice

Wedges are used ____________.

• A) any time a matrix is used
• B) only when the preparation involves a proximal surface
• C) only when the preparation involves a large missing tooth wall
• D) only when there is quite a bit of bleeding

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Definitions:

Semipermeable Membrane

A type of barrier that allows certain molecules or ions to pass through it by diffusion and occasionally specialized "facilitated diffusion."

Water

A transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms.

Millions

A numerical unit representing one thousand thousands, or 1,000,000.

Cytoplasm

The jelly-like substance inside cells that contains organelles and is enclosed by the cell membrane.