ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

What are the two types of bone development?
  1. Appositional growth and growth cartilage
  2. Intramembranous ossification and endochondral ossification
  3. Chondrocytes ossification and appositional growth
  4. Appositional growth and appositional ossification
Explanation
Answer: B - Intramembranous and endochondral ossification are the two types of bone development. Mesenchymal cells, while in the embryo, differentiate into fibrous membrane or cartilage that then creates bone.
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