One of the following statement is unique about circumpulpal dentine______________?
Correct answer: D. Contain phosphophoryn
- A. Collagen fibers are oriented perpendicular to DEJ
- B. Vonkorff fibers are present
- C. Requires matrix vesicle for mineralization
- D. Contain phosphophoryn
Explanation
Phosphophoryn is a distinctive noncollagenous protein abundant in circumpulpal dentin and essentially absent from mantle dentin. Von Korff fibres and matrix vesicles are associated mainly with mantle-dentin mineralization.
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