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Dentistry Tooth Development And Eruption

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What are the resorptive cells for enamel - dentin - cementum and alveolar bone?






2. Where is the enamal organ originally derived from?






3. What will the inner cells of the dental lamina differentiates into?






4. What wll the inner enamel epithelium differentiate into?






5. What are the etiological factors for dens in dente and gemination?






6. What are the mature cells for cementum?






7. What are supernumerary teeth?






8. What are the clinical ramifications of supernumerary teeth?






9. What happens when the reduced enamel epithelium is created?






10. Active eruption






11. What stage does anodontia occur?






12. What is the embryological background for enamel?






13. Where is the dental sac originally derived from?






14. In the cap stage the tooth bud does not grow - what happens?






15. What are the mature cells for dentin?






16. When the undifferentiated cells of the dental sac come into contact with the root dentin they differentiate into what?






17. What is the primordium of the tooth?






18. Passive eruption






19. What are succedaneous teeth?






20. What conveys communications between the cells of the enamel organ - the dental papilla - and the dental sac allowing tissue interactions?






21. What is the time span for the bud stage?






22. What are the clinical ramifications of anodontia?






23. What are the major components of the tooth germ?






24. What will the dental papilla eventually form?






25. The oral epithelium is induced by the ectomesenchyme to produce what?






26. What are the clinical ramifications of fusion?






27. What happens during the bell stage?






28. What are the odontoblastic processes is contained in what?






29. What are the formative cells for enamel?






30. What is cementogenisis?






31. Odontoblasts leave attached cellular extensions in the length of the predentin called what?






32. The buds of the dental lamina - together with the surrounding ecto mesenchyme - will develop into what?






33. What are the clinical ramifications of enamel dysplasia?






34. Do odontoblasts start their secretion of matrix before the ameloblasts?






35. What hard tissue is innervated by nerves?






36. When does dens in dente occur?






37. Where does the primordium of the permanent dentition develop?






38. What is the outer portion of the ectoderm in the initiation stage?






39. What is gemination?






40. What is the site for the future dentioenamel junction?






41. What are the etiological factors for anodontia?






42. What is the predominate process of the cap stage?






43. Where is the enamel matrix secreted from by the ameloblasts?

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44. The stellate reticulum is located inner or outer?






45. What happens to the thickened non tooth producing portions of the dental lamina eventually?






46. When root formation is completed the portion of the basement membrane disintegrates its cells may become what?






47. After the enamel apposition ceases the crown area of each primary or permanent tooth what happens?






48. When does the process of root development take place?






49. What is the main process involved in initiation?






50. What cell bodies are involved in the eruption and mineralization process but will be lost after eruption?