A Stain That Cannot Be Removed from the Surfaces of the Teeth

question 15

Multiple Choice

A stain that cannot be removed from the surfaces of the teeth is called a(n) ____ stain.

• A)extrinsic
• B)natural
• C)intrinsic
• D)infected

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Definitions:

Mental Acts

Cognitive activities or operations performed by the mind, including thinking, reasoning, imagining, and remembering.

Mutual Exclusivity Assumption

A language acquisition principle where children assume that objects have a single name, which helps them learn new words.

Doula

A professional trained to provide guidance and support to a woman before, during, and after childbirth.

Zone Of Proximal Development

A concept in developmental psychology referring to the difference between what a learner can do without help and what they can achieve with guidance and encouragement.