Introduction Flashcards
alveolar process is made up of
- outer cortical plate
- inner cortical plate (lamina dura)
gingiva is made up of
- free
- attached
free gingiva is
where the probe goes until
what gingiva may be lost in disease
attached gingiva
gingiva qualities
- goes apically to MGJ
- keratinized
- stippling
- may be darker due to physiologic pigmentation
alveolar mucosa is defined by
moving lips
alveolar mucosa qualities
- non-keratinized
- loosely attached to alveolar bone
junctional epithelium is permeable due to
wide intercellular spaces
pros and cons for permeable JE
- con: bacteria gets in
- pro: WBCs get in to fix it
how many basal lamina does JE have
two
- one that faces tooth (internal)
- one that faces CT (external)
definition of JE
part of gingiva that attaches to enamel
function of JE
- protect from bacteria
- provide seal b/w gums and teeth
- joins gingiva to teeth below sulcus
how does JE join gingiva to teeth
by the epithelial attachment: internal basal lamina + hemidesmosomes
oral epithelium qualities
- keratinized
- covers free and attached gingiva
- finger-like projections (creates stippling)
- “cornified”
function of oral epi
protect against mechanical injury (by desmosomes which lack permeability)
