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Periodontology DHI
Chapter 1
17
Other
Not Applicable
01/18/2012

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Term
fenestration
Definition
windowlike defect in cortical bone
isolated area of root not covered by bone
Term
dehisence
Definition
cleft-like defect in cortical bone
includes bone margins
Term
free gingiva
Definition
unattached gingiva
Term
gingival margin
Definition
outer most edge of gingiva
Term
gingival sulcus
Definition
space btwn free gingiva and tooth
Term
interdental gingiva
Definition
"v" shaped papilla btwn the teeth that prevent food from getting traped
Term
pigmentation
Definition
coloration of gingiva
Term
stipiling
Definition
orange peel look to gingiva while dry
due to rete pegs
Term
alveolar bone
Definition
bony projection that surrounds the teeth
Term
functions of the PDL
Definition
supportive, sensory, nutritive, formative, and resorptive
Term
where is the PDL located?
Definition
attaches to the bone of the tooth socket and the cementum
Term
PDL is composed of:
Definition
fiber bundles
- is also a layer of soft conn. tissue
Term
Root cementum
Definition
thin, hard layer of mineralized tissue that covers the root
Light yellow in color
overlies dentin
Term
root cementum gets its nutirient where?
Definition
the PDL
Term
what are the fxns of the cementum?
Definition
1 anchors the PDL
2 protect the dentin/dentin tubules
3 ability to rebuild and grow new cementum (help with abrasion)
Term
cortical bone
Definition
forms hard outer wall of Mand and Max on facial and lingual
Bu cort bone is thin in anterior and PM regions
Bu cort bone is thicker in the molar regions
Term
amastomaose
Definition
join together
vessels of periodontum join to create a sys. of BV that supply tissues
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