What is the thickness of the layer of primsless enamel found in primary teeth_____________?
Correct answer: B. 25 μm
- A. 50μm
- B. 25 μm
- C. 75μm
- D. 100μm
Explanation
The prismless outer enamel layer of primary teeth is approximately 25 micrometres thick. It is formed near the enamel surface and lacks the usual prism structure.
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