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Dentistry Tooth Development And Eruption

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 is the site for the future dentioenamel junction?






2. What does the cervical loop consist of?






3. What is gemination?






4. What will the dental sac give rise to?






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






6. What are the cell layers found in the enamel organ in the bell stage?






7. What happens during the appositional stage?






8. What is the main process involved in the bud stage?






9. What is concrescence?






10. What are succedaneous teeth?






11. What is cementogenisis?






12. What is the time span for initiation?






13. What is enamel dysplasia?






14. What are the clinical ramifications of enamel pearl?






15. Where is the dental papilla originally derived from?






16. What are the etiological factors of enamel dysplasia?






17. What is macrodontia?






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






19. What hard tissue is can not have tissue formation after eruption?






20. What are the etiological factors for supernumerary teeth?






21. What kind of cells reside in the stratum intermediate?






22. What kind of cells occur in the inner enamel epithelium?






23. What is the embryological background for dentin - cementum and alveolar bone?






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






25. How many types of cells are found in the enamel organ in the bell stage?






26. What stage does supernumerary teeth occur?






27. What is matrix?






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






29. What wll the inner enamel epithelium differentiate into?






30. Active eruption






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






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






33. What are the clinical ramifications of enamel dysplasia?






34. When does the tooth bud become a tooth germ?






35. When does dens in dente occur?






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






37. What are the incremental lines for cementum and alveolar bone?






38. What are the etiological factors for anodontia?






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






40. What are the resorptive cells for enamel - dentin - cementum and alveolar bone?






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

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42. What is the predominate process in the bell stage?






43. How is the reduced enamel epithelium created?






44. When the inner epithelial epithelium columnar cells elongate and repolarize they differentiate into what?






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






46. What is the embryological background for enamel?






47. What is anodontia?






48. What are the etiological factors of concrescence?






49. What is dens in dente?






50. What will the outer cells of the dental lamina differentiate into?






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