California Registered Dental Assistant (RDA) Written Practice Exam

Question: 1 / 400

Elastomeric materials supplied as base and catalyst are known to be:

Auto-mixed

Self-cured

Elastomeric materials supplied as base and catalyst are known to be self-cured, meaning they do not require any external source of energy or light to harden. Options A, C, and D all refer to materials that require an external source of energy to cure. Option A, auto-mixed, is not a correct term and does not provide a clear explanation. Option C, light-cured, is incorrect because this refers to materials that are specifically cured by exposure to a light source, such as a UV light. Option D, dual-cured, is also incorrect because this refers to materials that have two ways of curing, usually by exposure to light and a chemical reaction between the base and catalyst. Therefore, the best answer is B, self-cured.

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Light-cured

Dual-cured

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