Incremental lines of Retzius appear_____________?
Correct answer: D. In enamel and follow the apposition pattern
- A. As lines in the enamel running at right angles to the enamel surface
- B. As lines in the dentin running at right angles to the dentino-enamel junction
- C. In dentin and follow the appositional pattern
- D. In enamel and follow the apposition pattern
Explanation
Lines of Retzius are incremental growth lines in enamel that record the appositional rhythm of ameloblast activity. They therefore reflect successive layers of enamel deposition rather than dentin formation.
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