Each of the following is true of enamel lamellae EXCEPT one. Which one is the EXCEPTION?
A) Lamellae are cracks in enamel that rarely extend through the enamel.
B) Enamel lamellae may provide a pathway for bacteria into enamel.
C) The most common type of lamellae is caused by trauma.
D) Rapid changes in temperature from food and drink commonly cause lamellae.
E) An infrequent type of lamellae is a developmental defect.

Question

Quizplus · Accepted Answer

Lamellae are hairline cracks in the enamel that may extend into dentin. An infrequent type is a developmental defect that results from cessation of enamel production by one or more ameloblasts. This defect leaves a space between enamel rods, which provides a potential pathway bacteria.

Each of the Following Is True of Enamel Lamellae EXCEPT