Embryo Chp 10 Gingival & DEJ Tissues
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Created by:
pgilbert156 on March 19, 2011
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20 terms
Terms | Definitions |
|---|---|
 basal lamina | superficial portion of the basement membrane. within the dej, there is an external and internal surrounding the je |
| internal basal lamina | consists of lamina lucida and lamina densa; part of the epithelial attachment (EA) that is continuous with the external basal lamina |
| col | apical to the contact area, the interdental gingiva assumes a nonvisible concave form between the facial & lingual gingival surface; nonkeratinized |
| dentogingival | junction between the tooth surface and the gingival tissues; together with the sulcular epithelium form the dj tissues |
| junctional epithelium | lines the floor of the gingival sulcus and is attached to the tooth surface;attachment to the tooth surface can occur on enamel, cementum, or dentin; more permeable than other ging tissues so wbc (PMN's) can come up thru |
| epithelial attachment | this attaches the je to the tooth surface |
| free gingival crest | aka gingival margin; most superficial portion of the marginal gingiva |
| free gingival groove | separates the attached ging. from the marginal gingiva; corresponds to depth of ging sulcus |
| attached | gingiva that tightly adheres to the bone around the roots of the teeth |
| interdental gingiva | ging between adjacent teeth is an extension of attached gingiva |
| gingiva | surrounds max and mand teeth in the alveoli and covering the alveolar processes |
| gingival fluid | seeps between the epi cells and into the ging sulcus. allows the components of the blood to reach the tooth surface thru the je from the blood vessels of the adjacent lamina propria. contains both immunological components and cells of the blood; includes wbc especially pmn's; rate is 1-2 microliters per tooth per hour |
| hyperplasia | overgrowth of th interproximal gingiva resulting from the intake of certain drugs for seizure control, certain antibiotics, specific heart meds |
| recession | gm becomes lower, or more apical can also result from perio disease, tooth poision, abrasion by incorrect toothbrushing etc |
| gingivitis | initial signs of active perio disease; acute inflammation and epithelial ulceration or tissue thinning and increase number of wbc |
| lamina propria | when bleeding after gentle probing occurs this gets damaged because of the increased blood vessels which are close to the surface because of the ulceration of the je |
| subgingival | mineral from the bloodstream contribute to the formation of calculus in this area; calc is darker, more calcified & tenacious |
| supragingival | minerals from the saliva contribute to the formation of calculus in this area; calc is white |
| masticatory mucosa | type of mucosa; attached gingiva; when healthy it is pink with some areas of melanin pigmentation possible; when dried is dull, firm, and immoble with varying amts of stippling |
| sulcular epithelium | aka crevicular epithelium stand away from the tooth, creating a gingival sulcus or space that is filled with gingival fluid or crevicular fluid; ave depth .5mm-3mm w/ ave 1.8mm |
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