California Registered Dental Assistant (RDA) Written Practice Exam

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At the time of primary teeth exfoliation, osteoclasts first cause resorption of what?

  1. Root

  2. Crown

  3. Enamel

  4. Pulp

The correct answer is: Root

During the process of primary teeth exfoliation, the roots of the primary teeth are resorbed by osteoclasts, which are specialized cells responsible for the breakdown and removal of old or damaged bone tissue. The crown, enamel, and pulp are not directly involved in this process and therefore, are not the correct answer.

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