A 14-month-old girl is brought to the pediatric dentistry clinic because her erupted deciduous teeth are opalescent with fractured and chipped surfaces. X-rays reveal bulb-shaped crowns, thin roots, and enlarged central cavities. Tissue immediately surrounding one tooth's central cavity is biopsied and prepared for histology, which reveals irregular, widely spaced tubules. Which of the following applies to this irregular tissue layer?
A) It has a composition similar to that of bone and is produced by cells similar in appearance to osteocytes.
B) It is formed on a noncollagenous matrix that is resorbed after mineralization by the same cells that secreted it.
C) It contains abundant nerves, microvasculature, and loose connective tissue.
D) It consists of mineralized collagen secreted by cells derived from the neural crest.
E) It is the site of inflammation in diabetic patients and is sensitive to vitamin C deficiency.
Correct Answer:
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