Oral and Craniofacial Developmental Biology Revision
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Questions and Answers

What is the role of reduced enamel epithelium in the development of the junctional epithelium?

  • It guides the development of the junctional epithelium (correct)
  • It produces the enamel matrix proteins during amelogenesis
  • It provides a barrier for the eruption of teeth
  • It regulates the formation of dentin

What is the primary function of Tomes's processes in ameloblasts?

  • To facilitate the movement of ameloblasts
  • To increase the surface area for enamel formation
  • To secrete enamel matrix proteins (correct)
  • To regulate the mineralization of enamel

What is the name of the process by which the enamel maturation and mineralization occur?

  • Maturation and mineralization (correct)
  • Amelogenesis
  • Eruption
  • Junctional epithelial development

What is the term for the incremental lines observed in enamel?

<p>Growth Lines of Retzius (C)</p> Signup and view all the answers

What is the primary difference between active and passive eruption?

<p>Forces involved in eruption (A)</p> Signup and view all the answers

What is the name of the cells responsible for enamel formation?

<p>Ameloblasts (A)</p> Signup and view all the answers

What are the three primary germ layers that form during embryogenesis?

<p>Endoderm, Mesoderm, Ectoderm (C)</p> Signup and view all the answers

During embryogenesis, how are the germ layers formed?

<p>Through the formation of the blastula and gastrula (A)</p> Signup and view all the answers

Which facial primordium gives rise to the upper lip in the adult face?

<p>Frontonasal prominence (C)</p> Signup and view all the answers

What is the fate of the pharyngeal arches?

<p>They form the skull and face (B)</p> Signup and view all the answers

Which type of ossification occurs in cartilage models?

<p>Endochondral ossification (D)</p> Signup and view all the answers

What is the mechanism of sutural growth?

<p>Deposition of bone at the sutures (D)</p> Signup and view all the answers

What is the primary function of odontoblasts in dentinogenesis?

<p>To secrete and modify the protein matrix and mineralize the matrix (A)</p> Signup and view all the answers

What is the arrangement of the outer region of the pulp?

<p>Odontoblast layer, cell-free zone, and Raschkow's nerve plexus (D)</p> Signup and view all the answers

What is the composition of the dental pulp?

<p>Odontoblasts, fibroblasts, defense cells, and ground substances (D)</p> Signup and view all the answers

What is the clinical significance of the structure of dentine?

<p>It affects the sensitivity of the tooth (B)</p> Signup and view all the answers

What is the process by which tertiary dentine is formed?

<p>Molecular mechanisms involved in tertiary dentine formation (C)</p> Signup and view all the answers

What is the location of the dental pulp?

<p>Within the rigid encasement of mineralized dentin (C)</p> Signup and view all the answers

What is the main function of the periodontal ligament during tooth support?

<p>To attach the tooth to the surrounding bone (D)</p> Signup and view all the answers

Which type of fibers are attached to the Bundle bone?

<p>Sharpey’s fibers (C)</p> Signup and view all the answers

What is the main difference between the periodontal ligament and gingival tissues?

<p>The periodontal ligament is attached to the tooth, whereas gingival tissues are attached to the bone (C)</p> Signup and view all the answers

What is the function of cementoblasts in the periodontal ligament?

<p>To produce cementum (B)</p> Signup and view all the answers

What is the term for the tissue that surrounds the emerging dental implant and restoration?

<p>Periimplant tissue (A)</p> Signup and view all the answers

What is the main characteristic of embryonic stem cells (ESCs)?

<p>They are pluripotent (C)</p> Signup and view all the answers

What is the primary function of adult/somatic stem cells?

<p>To maintain tissue homeostasis (B)</p> Signup and view all the answers

What is the process of generating Induced Pluripotent Stem (iPSCs) cells?

<p>Reprogramming adult cells into pluripotent cells (D)</p> Signup and view all the answers

What type of stem cells can be found in dental pulp?

<p>DPSCs (Dental Pulp Stem Cells) (D)</p> Signup and view all the answers

What is the term for the process by which dentin repairs itself?

<p>Dentinogenesis (B)</p> Signup and view all the answers

What happens in Dental pulp following injury?

<p>Inflammation and repair (C)</p> Signup and view all the answers

What is the purpose of the Histology Workshop in this course?

<p>To revise Development lectures and Anatomy (D)</p> Signup and view all the answers

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