Which of the Following Statements Is True Regarding Types of Tooth

question 10

Multiple Choice

Which of the following statements is true regarding types of tooth stains?

• A) Intrinsic stains are on the tooth surface.
• B) All extrinsic stains can be removed by hand or ultrasonic scaling and coronal polishing.
• C) In general,yellow-brown discolorations are easier to bleach than blue-gray and black colors.
• D) Tetracycline derivatives such as minocycline will cause discoloration of teeth in children but not in adults.