Coronal Polish Certification Practice Test

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Prepare for the Coronal Polish Certification Exam. Study using flashcards and multiple-choice questions, each with hints and detailed explanations. Ensure success on your test by practicing effectively!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What kind of stain is caused by tetracycline?

Extrinsic
Intrinsic
Surface
Mild

The correct answer is: Intrinsic

Tetracycline-related staining is classified as intrinsic because it occurs when the antibiotic is absorbed into the developing teeth during childhood when the teeth are still forming. This absorption leads to changes in the enamel and dentin, resulting in a permanent color change, typically a grayish or brownish hue. Unlike extrinsic stains, which occur on the surface of the teeth due to external factors like food, beverages, or tobacco, intrinsic stains are embedded within the tooth structure itself. Therefore, intrinsic staining from tetracycline is significant as it indicates that the staining is not merely on the surface but affects the tooth’s internal composition. Understanding this distinction is key for dental professionals when diagnosing and treating different types of dental discoloration.