Wk 4 Periodontial Health Gingival Disease Flashcards
(99 cards)
describe the marginal/free gingiva
- the portion of the gingiva surrounding the neck of the tooth
- not directly attached to tooth
- forms the soft tissue wall of the gingival sulcus
- extends from the gingival margin to the gingival (marginal) groove
describe the gingival sulcus
- space bounded by the tooth and the free gingiva
- has the junctional epithelium at its base
- non-keratinized epithelium
- no rete pegs
- semi-permeable membrane
describe the attached gingivs
- portion of the gingiva that extends apically from the area of the free gingival groove to the MGJ
- normally covered by keratinized epithelium with rete ridges
- no submucosa
- bound to the underlying tooth and bone
describe the interdental gingiva
-portion of the gingiva that extends between the teeth
- includes the col area which is composed of a non- keratinized stratified squamous epithelium in the interproximal space
describe the oral epithelium and its rate of turnover
- keratinized stratified squamous epithelium
- rete pegs present
- resistant to forces from mastication
- turnover rate of 30 days
describe the sulcular epithelium
- non-keratinized startified sqaumous epithelium
- no rete pegs
- semi-permeable membrane
describe the junctional epithelium
- non-keratinized
- attached to the tooth with hemidesmosomes and non-collagenous proteins attachment
attachment on the tooth is normally at or near the CEJ - can be infiltrated by PMNs
- high rate of turnover (7-10 days)
describe gingival connective tissue
- diffuse amorphous ground substance
- collagen fibers
- blood vessels in the papillary projections of the connective tissue
what forms the connective tissue attachment
densely packed collagen fibers
the stability of the connective tissue attachment is a key factor in:
the limitation of the migration of the JE
what is the new term for biologic width
supracrestal tissue attachment
what is prone to invasion by bacteria and their byproducts due to the nature of the type of epithelium
the epithelium lining and the sulcus
what colors can the attached and marginal gingiva be and why
brown, orange, pink and is a result from the colors of the vascular supply, the thickness and degree of keratinization of the epithelium and the pigment containing cells
the color of gingiva correlates with
the cutaneous skin pigmentation
what color are healthy marginal and attached gingiva
coral pink
what color is the alveolar mucosa
red, smooth and shiny
what is the healthy contour of the gums
scalloped and collar like
- gingival level is higher interproximally
what is the shape of the interdental gingiva governed by
the contour of the proximal tooth surfaces and the location and shape of the gingival embrasures
the size of the gingiva should correspond with:
the sum total of the bulk of cellular and intercellular elements and vascular supply
what is the healthy consistency of gums
firm and resilient
what contributes to the firmness of the gingival margin
consistency
what is a healthy surface texture
attached gingiva is stipples, the marginal gingiva is not
when is stippling present
- varies with age
- absent during infancy
- appears in some children at 5 years of age
- increases until adulthood
- begins to disappear during old age
where is stippling less prominent
on lingual surfaces