Perio Autumn Final

Front 1

biological width (3)
an additional ____ should be included in biological width calculation for restorative procedures

Back 1

-width btw base of sulcus and alveolar crest
-must be at least 2mm
-space required for attachment of epith and CT
-1mm (:.3mm total)

Front 2

min amount of keratinized gingiva required for healthy peridontium

Back 2

-2mm

Front 3

crown lengthening: healing sequence
6 days
8 days
10-21 days

Back 3

-immature CT replaces fibrin clot
-peak of osteoclastic activity
--osteoblasts form new osteoid. Osteoclasts continue to resorb bone. New cementum formation

Front 4

Crown lengthening: healing sequence
1 month
1 1/2 months
2-3 months

Back 4

-flap firmly attached to root. CT and epith are fully formed but weak because of low collagen content
-absolute earliest a final impression may be taken
-Restorative procedures ok

Front 5

Crown lengthening:
gingivectomy

Back 5

-not predictable
-usually results in 1mm increase of crown. Can be more for pseudopockets
-does not displace attachment apparatus apically. Only reduces sulcus depth
- :.should not be used where there isn't much AG

Front 6

concept behind guided tissue regeneration

Back 6

-cementum and PDL will attach to (repaired) root surface if the surface is isolated from epith and CT during healing
-cementum and PDL (attachment apparatus) is strong. Epith and CT (long junctional epithelium) is weak.

Front 7

Gortex (4)

Back 7

-used in guided tissue regeneration
2 properties:
open microstructure: epith recognizes gortex as non-foreign, and does not migrate in the initial stages
occlusive membrane: barrier btw gingival CT and tooth root
-not resorbable. Must be removed

Front 8

Miller classifications I-IV

Back 8

I: recession CORONAL to MGJ. No bone loss. 100% root coverage possible
II: recession APICAL to MGJ. No bone loss. 100% root coverage possible
III: recession apical and mild-moderate bone loss. Some root coverage possible
IV: Severe recession with severe bone loss. No coverage possible