theory

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sweetpea281
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49521
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theory
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2010-11-14 17:12:26
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12part1
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Wilkins Ch. 12 The Gingiva
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  1. what is the visible portion of the crown called?
    clinical crown
  2. where is the clinical crown located?
    above the attached periodontal tissues (above free gingiva)
  3. t/f the root can be part of the clinical crown?
    true-gum recession makes root visible
  4. what is the anatomic crown?
    part of the tooth covered by enamel- no root
  5. what is the anatomic root?
    part of tooth covered by cementum
  6. what is the portion of the anatomic root that is visible called?
    clinical root
  7. t/f you can have a clinical root would also be part of the clinical crown?
    true
  8. what are the three types of gingiva
    • masticatory
    • lining
    • specialized
  9. what does masticatory mucosa cover?
    gingiva and hard palate
  10. what type of mucosa is firmly attached to underlying tissues and generally keratinized?
    masticatory
  11. does stippling occur on masticatory tissue?
    yes
  12. what does lining mucosa cover?
    • inner surface of lips
    • cheeks
    • floor of mouth
    • ventral surface of tongue
    • soft palate
    • alveolar mucosa
  13. what type of mucosa is not firmly attached to underlying structures and is not kertatinized?
    lining mucosa
  14. what does specialized mucosa cover?
    • dorsum of tongue
    • papillae
  15. what are the four types of specialized mucosa papillae?
    • filiform
    • fungiform
    • circumvallate
    • foliate
  16. what type of papillae are finger like white and fill in most of the tongue?
    filiform
  17. what type of papillae are mushroom like and are large and red
    fungiform
  18. how many circumvallate papillae are there?
    10-14
  19. where are the foliate papillae located
    posterior lateral border of the tongue
  20. what makes up the supporting structures of the tooth?
    • periodontal ligament
    • gingival fibers
    • cementum
    • alveolar processes of maxilla and mandible
  21. what are the supporting structures of the tooth called?
    periodontium
  22. what attaches to roots of teeth to the alveolar bone?
    periodontal ligament
  23. what kind of tissue is the periodontal ligament?
    fibrous connective tissue
  24. what are the fibers that insert into the cementum and alveolar bone?
    sharpey's fibers
  25. what are the four gingival fiber groups
    • dentiogingival fibers
    • alveologingival fibers
    • circumferential fibers
    • dentoperiosteal fibers
  26. what fibers are continuous around the neck of the tooth?
    circumferential (circular) fibers
  27. what do circumferential (circular) fibers do?
    help maintain tooth position
  28. what fibers go from the cementum of cervical region into free gingiva?
    dentogingival (free) fibers
  29. what dot he dentogingival (free) fibers do?
    support gingiva
  30. what fibers go from the alveolar crest into free and attached gingiva?
    alveologingival (attached gingival) fibers
  31. what dot he alveologingival (attached gingival) fibers do?
    provides gingival support
  32. what fibers go from the cervical cementum over the alveolar crest to blend with fibers of the periosteum
    dentoperiosteal (alveolar crest) fibers
  33. what do the dentoperiosteal (alveolar crest) fibers do?
    provides gingival support
  34. what are the six principal fiber groups?
    • transeptal fibers
    • alveolar crest fibers
    • horizontal fibers
    • oblique fibers
    • apical fibers
    • interradicular fibers
  35. what are the two types of periodontal ligament fiber groups
    • gingival fiber group
    • principal fiber group
  36. what fibers go from the cervical area of one tooth across to an adjacent tooth?
    transseptal fibers
  37. transseptal fibers travel _____ to ______ only
    mesial to distal
  38. what do transseptal fibers do ?
    help to keep teeth seperated
  39. if you lose the tooth what element of support do you also lose?
    transseptal fibers
  40. what fibers go from alveolar crest to the cementum just below the CEJ?
    alveolar crest fibers
  41. what do alveolar crest fibers do?
    resist intrusive forces
  42. what do alveolar crest fibers work in conjunction with?
    junctional epithelium
  43. what fibers go from the cementum in the middle of each root to the adjacent alveolar bone?
    horizontal fibers?
  44. what do horizontal fibers do?
    resist tipping of the tooth
  45. what fibers go from the root above the apical fibers obliquely toward the occlusal?
    oblique fibers
  46. what do oblique fibers do?
    resist vertical and unexpected strong forces
  47. what is an example of a strong force the fibers help to resist against?
    trauma
  48. what fibers go from the root apex to the adjacent surrounding bone?
    apical fibers
  49. what do the apical fibers do?
    resist vertical forces (trauma)
  50. what fibers go from the cementum between the roots of multi-rooted teeth to the adjacent bone
    interradicular fibers
  51. what do interradicular fibers do?
    resist vertical and lateral forces
  52. what fibers are inbetween the roots of the same tooth?
    interradicular fibers
  53. what fibers help to resist vertical and lateral forces
    interradicular fibers
  54. what fibers help to resist vertical forces?
    apical fibers
  55. what fibers resist vertical and unexpected strong forces?
    oblique fibers
  56. what fibers help to resist tipping of the tooth
    horizontal fibers
  57. what fibers help to resist intrusive forces?
    alveolar crest fibers
  58. what fibers help to keep teeth separated?
    transseptal fibers
  59. what fibers provide gingival support?
    dentoperiosteal (alveolar crest) fibers
  60. what fibers help to proved gingival support?
    alveologingival (attached gingival) fibers
  61. what fibers support the gingiva?
    dentogingival (free) fibers
  62. what fibers help to maintain tooth position?
    circumferential (circular) fibers
  63. what are two functions of the cementum
    • seal the tubercles of the root dentin
    • provide attachment for the perio fiber group
  64. what is the apex cementum thickness?
    50-200 micrometeres
  65. what cementum is 50-200 micrometers thick?
    apex cementum
  66. what is the cervical cementum thickness?
    30- 60 micrometers
  67. what cementum is 30-60 micrometers tick?
    cervical cementum
  68. t/f the cementum is sensitive because of its vascular and nerve connections
    false-cementum is insensitive; it has no vascular or nerve connections
  69. what are the two types of cementum?
    • acellular
    • cellular
  70. what type of cementum is the primary cementum?
    acellular cementum
  71. t/f acellular cementum is fast forming and cellular cementum is slow forming?
    false the acelluar is SLOW forming and cellular cemntum is FAST
  72. what type of cementum has one layer to cover the entire root?
    acellular
  73. t/f acellular cementum has more layers at the cervical third
    true
  74. which type of cementum has a static width?
    acellular
  75. which type of cementum has no cementocytes?
    acellular- cannot reproduce
  76. which type of cementum has sharpey's fibers that are fully mineralized?
    acellular
  77. which type of cementum is on top?
    cellular
  78. which type of cementum is secondary?
    cellular
  79. what are the most common places for cellular cementum?
    apical third and interradicular area
  80. t/f the width of cellular cementum is dynamic?
    true-more produced if needed
  81. what type of cementum has sharpey's fibers that are partially mineralized
    cellular
  82. what surrounds the tooth socket and supporting bone?
    lamina dura
  83. what is reabsorbed when the tooth is lost?
    alveolar bone
  84. what is the function of the alveolar bone?
    • support teeth
    • provide attachment for periodontal ligament (PDL)

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