applied anatomy Flashcards
passive eruption
gingiva reaches final position
altered passive eruption
tooth stuck under gingiva, gingivectomy needed
In health, probe penetrates to ____________.
free gingival groove
In disease, probe penetrates __________.
past JE into connective tissue (but doesn’t poke through)
probe depth increases in inflammation due to ________ and _________.
swelling and probing error
diagnosing periodontitis is based on __________ NOT ________.
attachment loss, probe depth
False pockets can result from __________.
gingival enlargement
when the CEJ is covered by JE, this condition is known as _________.
gingivitis
periodontitis occurs when JE migrates in what direction?
apically
T/F: viable epithelium is not necessary for pocket formation
FALSE: it is necessary
shape of interdental papilla depends on _______, ________ and _________.
contact relationships between adj teeth, width of approximal tooth surfaces, course of CEJ
The concavity seen in contact areas of premolar and molar region
col
the col is consists of _________ epithelium.
non-keratinized
Where in the interdental papilla is the most disease susceptible?
col
The ________ and __________ of the contact area determine probe angulations in posterior teeth.
position and dimensions
proper probing position and angulation
1) find interproximal contact 2) use contact as guide to insert probe 3) open angulation by 10 degrees toward buccal
T/F: Regarding gingival phenotype, narrow gingiva has the same resistance to AL as wide gingiva.
True
thin phenotype has _________ recession, _________ vulnerable to trauma, ________ inflammation and a _________ favorable tx outcome.
increased, more, more, less
When would you recommend gingival grafts?
1) when recession causes symptoms 2) subgingival restoration on thin phenotype 3) pre-ortho therapy
What determines gingival epithelial characteristics?
connective tissue
What are 2 examples of early grafting procedures?
1) free gingival grafts 2) coronally advanced flaps
What type of grafting procedure is used today?
connective tissue graft, since CT determines epithelial prototype
In necrotizing ulcerative periodontitis (NUP) there is ______ pocketing because ____________. Bone is exposed.
no pocketing, JE cells die
the distance from the CEJ or crown margin to alveolar crest must be ____mm to keep proper biologic width
2mm
guided tissue regeneration principle
epithelium grows faster than bone or connective tissue. epithelial exclusion will allow selective growth of these cells
What are barrier membranes used for?
GTR collagen membrane
