What Pattern Does the Fluoride-Release from Glass Ionomers Follow

question 59

Multiple Choice

What pattern does the fluoride-release from glass ionomers follow?

• A)Rapid decrease to a low level after 24 hours
• B)Rapid decrease over 7 to 14 days
• C)Decrease after 30 days
• D)Increase after many months
• E)No release after 1 year

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Definitions:

Periderm

A protective outer layer of tissue in plants, including the cork, which replaces the epidermis in roots and stems of woody plants.

Partly Decayed

Refers to a state of partial decomposition, typically of organic matter, resulting from the action of bacteria and fungi.

Organic Portion

The component of a substance or material that is derived from living organisms and contains carbon.

Pneumatophores

Specialized aerial roots typically found in mangrove species that allow gas exchange in waterlogged conditions.