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t or f. patient with 20 interdental areas of 6-7mm of CAL and 4 extracted teeth due to periodontal disease and 3 hopeless teeth with grade III mobility and drifted #8,9 is periodontists stage IV

t or f. patient with 20 interdental areas of 6-7mm of CAL and 4 extracted teeth due to periodontal disease and 3 hopeless teeth with grade III mobility and drifted #8,9 is periodontists stage IV

true

t or f. A new pt reported he has been treated for periodontal disease 20 years ago and on the regular maintenance. Past radiographs from another office show no bone loss from 210-2018. New set of FMX was taken and it shows vertical bone defect and bone loss of 4-5mm interproximal of 3 teeth compared to the 2018 FMX. The grade should be moved to C

true

when the internal bone is apical to the radicular bone it is called

negative architecture

which surgical method shouldn't be used if there is an intrabony pocket

gingivectomy

what is true about gingivectomy

no exposure of the bone occurs

for crown lengthening procedure for a tooth that needs post-core how much of the sound tooth structure should be exposed from the crest of the bone in ideal situation

5mm (2mm for ferrule, 2mm for supracrestal attached tissue and 1mm for sulcus)

most important objective of periodontal access surgery

to gain access to the root surface for scaling and root planing

what flap design is the best choice for osseous recontrouing of molars with 6mm of PPD and 3mm of KT

apically displaced flap

what is true about the modified Widman flap

no intention of pocket reduction, only to gain access to the root surface

patient presented with 6mm of PPD in one moth eval distal of tooth #6. Pt has a high smile line and high esthetic expectation. Which flap is the best option

papilla preservation flap

what is the first incision in the modified Widman flap technique

internal bevel

t or f. in an undisplaced flap technique, no keratinized tissue will be removed

false

for a pt with advanced periodontitis and 5mm intrabony defect, what is the best surgical method

compromised osseous reshaping with primary goal of access to the root surface for instrumentation if patient has low plaque index

which case is the best candidate for regenerative procedure
a. grade III furcation involvement on #30
b. grade III furcation involvement on #2
c. grade II furcation involvement on #14
d. grade II furcation involvement on tooth #19

grade II furcation involvement on tooth #19

supracrestal attachment tissue :

is CT and JE

which is true about altered passive eruption

flap design based on the amount KT

indications for crown lengthening procedure include

subgingival caries or fracture
inadequate clinical crown length for retention
unequal or unaesthetic gingival heights

what is the minimum PPD for root planing, and what is the outcome if you root plan shallow PPD

4mm
may cause CAL loss

violation of supracrestal attached tissue

in thick scalloped phenotype may result in periodontal pocket formation

incision was placed 0.5-1mm form marginal gingiva from coronal to apical direction, what is the type of incision

submarginal

t or f. periodontal regeneration can only been seen under a microscope

true

new CT with parallel PDL around the tooth is

new attachment

guided tissue regeneration means

prevent both CT and epithelial cells to populate around the root surface of the tooth

what does a xenograft act as

scaffold and are osteoconductive

pt has CC of lingering pain on #31 and took meds every 6 hours for last couple of days. what is the best sequence of treatment
1. prophy/scale
2. RCT #31 (pulpectomy)
3. Crown #31

2, 1, 3

pt has CC of "I don't like my gummy smile" what is the treatment plan

needs X-ray, hyper mobile lip and vertical maxillary excess need to be evaluated

crown lengthening procedure is indicated for

all cases when the margin of the prep is 3mm subgingival

t or f. pt with interdental CAL of 3-4mm on teeth #'s 2,4,15,18,19,24,25,30 and 6mm of CAL mesial #5, distal of #'s 14 and 3 is considered localized stage III periodontitis (rest of the mouth has zero CAL)

true

incision was placed 0.5-1mm from marginal gingiva rom coronal to apical direction what type of incision

Crestal

t or f. Regenerative procedure is an umbrella term for any procedure that results in gaining the lost structure/tissue, and guided tissue regeneration is one of those

true