Perio Lecture 3

  1. the connective tissue of the gingiva is know as the
    Lamina propria
  2. Layers of lamina propria (2)
    • papillary layer
    • reticular layer
  3. Layer of lamina propria that is subjacent to the epithelium
    Papillary layer
  4. Layer of lamina propria that is continuous with the periosteum and alveolar bone
    reticular layer
  5. Types of Connective Tissue fibers (3)
    Collagen Fibers--primarily type 1

    reticular fibers (net like) (branching)--type 3

    elastic fibers--elastin
  6. Functions of gingival fibers (3)
    • brace gingiva against tooth
    • provide tissue rigidity during mastication
    • unite free marginal gingiva with cementum and adjacent attached gingiva
  7. three types of gingivodental group fibers
    • coronal
    • horizontal
    • apical
  8. three type of gingival fibers
    • gingivodental
    • circular
    • transseptal
  9. gingival fibers embedded in the cementum at base of gingival sulcus and includes facial, lingual, interpoximal surfaces, gingiva crest, and outer surface of the marginal gingiva
    gingivodental group
  10. gingival fibers found in marginal and interdental gingiva and encircles tooth in ringlike fashion
    circular group
  11. gingival fibers that are located inter proximally and are connected to the cementum of approximating teeth 
    often classified with the principal fibers of the PDL
    transseptal group
  12. Functions of the fibroblasts in gingival connective tissue (3)
    • synthesize collagen and elastic fibers
    • synthesize glycoproteins and glycosaminoglycans 
    • regulate collagen degradation through
  13. histamine and heparin releasing cells
    mast cells
  14. large phagocytic cells
    macrophages and histiocytes
  15. immunity cells
    plasma cells and lymphocytes
  16. barrier to microorganisms
  17. what are the sources of blood supply of the gingiva (3)
    • arterioles from the septa
    • supraperiosteal arterioles
    • vessels of the periodontal ligament
  18. how does the lympathics of the gingiva work?
    • the lymph drains into the collecting network external to the periosteum of the alveolar process
    • -->
    • regional lymph nodes (submaxillary group
  19. neural innervation of the gingiva
    • fibers from nerves of the PDL 
    • labial nerves
    • buccal nerves
    • palatal nerves
  20. what is the function of the fibers from nerves of the PDL
    they prevent you from over-occluding
  21. what is the color of healthy gingiva vs. diseased gingiva 

    what modifies the color?
    • Healthy: color pink
    • Disease: red, grayish white, blue

    modified by: tissues vascularity and overlying epithelial layers
  22. non-hemoglobin derived brown pigment
    present in all individuals except albinos 
    more prominent in dark-skinned racial types
    not limited to gingival tissues (hard palate, mucous membrane, tongue)
  23. tissue size of healthy vs diseased tissue
    • healthy: normal sized
    • Diseased: enlarged, edematous, bulky, puffy, heavy
  24. Tissue size correlates to (2)
    • bulk of cellular and intercellular elements
    • vascular supply
  25. tissue contour (mainly marginal) in healthy gum vs diseased
    • healthy: scalloped 
    • labial version: arcuate
    • lingual version: horizontal and rolled
  26. True/false: there is considerable variation in tissue contour
  27. The tissue contour is dependent on the ____ of teeth and _____
    • shape
    • alignment
  28. what is governed by contour and position of proximal tooth surface?
    Shape (mainly papilla)
  29. What is the favorable positioning of papilla?

    What is the spacing/diastema?
    peaked, knife-edge 

    flat, blunted (papilla), rolled (marginal)
  30. what is the consistency in normal vs. abnormal gingiva
    normal: firm, resilient

    abnormal: fibrous, leathery, spongy, soft, boggy
  31. what is the orange peel texture on gingiva sometimes seen called
  32. True/False: stippling is not always present even in health and varies with age
  33. stippling is limited to _____ gingiva
  34. what is a form of adaptive reinforcement for function and is related to degree of keratinization and rete pegs
  35. what is an abnormal surface texture
    smooth (loss of stippling), glossy*, ulcerated*, sloughing*

    *these changes in CT are in combination with epithelial changes
  36. movement of the teeth in an occlusal direction
    active eruption
  37. tooth exposure by apical migration of the gingiva
    passive eruption
  38. portion of the tooth covered by enamel
    anatomic crown
  39. portion of tooth projecting into oral cavity
    clinical crown
  40. portion of tooth covered by cementum
    anatomic root
  41. portion of the tooth covered by periodontal tissues
    clinical root
Card Set
Perio Lecture 3
Perio Exam 1