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Periodontology
Periodontology
129
Archaeology
7th Grade
03/09/2014

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Cards

Term
What are the tissues of the periodontium?
Definition
gingiva
bone
PDL
cementum
Term
What supplies nutrients to the periodontal structure?
Definition
the PDL
Term
What is one of the most important functions of the PDL?
Definition
shock absorber for nerves/vessels
Term
What are the fibers called that attach cementum to bone?
Definition
Sharpeys fibers
Term
Where are transeptal fibers?
Definition
imbedded in cementum of adjacent teeth, ortho
Term
Where are aveolar crest fibers?
Definition
apical to JE, extend obliquely from cementum to alveolar bone
Term
What is the largest and most significant group of fibers?
Definition
oblique
Term
Where do the oblique fibers extend?
Definition
from cementum coronally to the bone
Term
What direction stress does oblique fibers withstand?
Definition
mastication, vertical stress
Term
Where do interradicular fibers extend?
Definition
between roots of multirooted teeth
Term
What are the most prominent cell of the PDL?
Definition
fibroblasts
Term
What are cells that are capable of remodeling bone? Breaking it down?
Definition
-osteoblasts
-osteoclasts
Term
What is plaque induced gingivitis associated with?
Definition
associated with plaque
Term
What is plaque induced gingivitis modified by?
Definition
-systemic factors
-nutrition
-medication
Term
What is the origin of nonplaque induced gingivitis?
Definition
viral
fungal
genetic
Term
What are 2 specific causes of gingival inflammation?
Definition
open contacts
overhangs
Term
Gingivitis results from BLANK at the base of the sulcus.
Definition
ulceration
Term
What are some hematological disorders that manifest as perio?
Definition
-acquired neutropenia
-leukemia
Term
What are 4 common genetic disorders that cause perio?
Definition
1.familial and cyclic neutropenia
2.downs syndrome
3.papillon-leferve
4.chediak-higashi syndrome
Term
What are some signs of papillon-leferve syndrome?
Definition
calloused gingiva and calloused palms of hands and soles of feet
Term
What is the only difference between NUG and NUP?
Definition
people with NUP have CAL
Term
What are the microbes most associated with NUG/NUP? (4)
Definition
1.spriochetes(denticola)
2.fusobacterium
3.prevotella intermedia
4.porphymonas gingivalis
Term
What is the therapy for NUG/NUP? What medication?
Definition
antibiotics, tetracycline
Term
Why is tetracycline often the antibiotic of choice for NUG/NUP?
Definition
because it concentrates in the gingival cervicular fluid
Term
What are some common side effects of NUG/NUP?
Definition
-punched out papilla
-pseudomembrane
-odor
-pain
-inflammation
Term
What causes gingival absesses?
Definition
injury or infection to surface of gingival tissue
Term
What causes a periodontal abscess (lateral periodontal abscess)?
Definition
infection spreads deep into periodontal pockets and drainage of blocked from food, calc, etc
Term
What may a periodontal abscess develop after?
Definition
periodontal debridement
Term
Where do pericoronal abscesses develop?
Definition
around crowns of unerupted teeth
Term
What do periapical abscesses result from?
Definition
pulp infection, secondary to deep decay
Term
Which radiograph shows a periapical abscess? Periodontal?
Definition
-periapical film shows periapical abscess
-periodontal abscess generally does not show up in image
Term
What is another name for reversible pulpitis?
Definition
hyperemia
Term
What is reversible pulpitis?
Definition
mild pulpal infection from placement of deep restorations
Term
What is pneumatization?
Definition
a condition in which there is a connection between a sinus and an extraction site
Term
What are the steps to plaque formation (5)
Definition
1.glycoproteins absorbed onto tooth surface(pellicle)
2.bacteria adhere to pellicle
3.bacteria from matrix (expolysacchride)
4.creation of cohesive biofilm
5.bacteria detachment(planktonic)
Term
What is the nature and severity of the peridontal disease related to?
Definition
virulence of bacteria and host response
Term
Is the FGM supposed to be stippled?
Definition
no
Term
What is the most obvious result of vascodiliation of the peripherial circulation?
Definition
edema
Term
What does fibrotic mean?
Definition
-highly stippled
-pallor
Term
What does festooned mean?
Definition
swollen
Term
What are some local etiologic factors for perio?
Definition
-plaque
-calculus
-restorations(overhangs)
-open contacts
Term
Which is worse, cocci or rods?
Definition
rods are worse
Term
Which is worse, motile bacteria or nonmotile?
Definition
motile
Term
Where is anaerobic bacteria found?
Definition
in sulcus and periodontal pockets
Term
What are some common bacteria associated with perio?
Definition
-actinobcillus actinomycetem..
-porphymonus gingivalis
-pervotella intermedia
-camphylobacter rectus
-fuscobacterium
Term
Which 2 bacteria are most associated with gingivitis during pregnancy?
Definition
-p. intermedia
-c. rectus
Term
Which bacteria is thought to play a critical role in biofilm formation?
Definition
fusobacteria
Term
What shape are most bacteria associated with peiodontal disease?
Definition
rod
Term
What is the pellicle formed from?
Definition
glycoproteins found in saliva
Term
Which bacteria are typically the first to attach?
Definition
cocci gram positive
Term
What does the extracellular matrix do?
Definition
makes up the bulk of plaque biofilm, holds bacteria together
Term
What is the bacteria like in subgingival plaque?
Definition
motile rod/spirochetes gram negative
Term
What may adherent plaque become?
Definition
calculus
Term
What does non-ahearant(planktonic) plaque increase to?
Definition
acute infection
Term
What is the oral physiotherapy aid most suited for the removal of loosely adherent plaque?
Definition
oral irrigator
Term
What are endotoxins?
Definition
associated with gram - bacteria, can harm PMS's
Term
What are exotoxins?
Definition
bacterial waste products
Term
What are some enzymes produced by periodontal bacteria?
Definition
-hyaluronidase
-collagenase(p. gingivalis)
-pennicillinase
Term
What are the stages of periodontal lesions?
Definition
-initial
-early
-established
-advanced
Term
Initial:
days
changes
cells
Definition
2-4 days
vasodilation of small capillaries
increase in leukocytes(PMN's)
Term
Stage II early lesion is what?
Definition
gingivitis
Term
What appears in the early/stage II/gingivitis stage? What develop?
Definition
clinical gingivitis symptoms
rete pegs develop in sucular lining
Term
What are stage IV/advanced lesions? Are they reversible?
Definition
-transition from gingivitis to perio
-irreversible
Term
What are the changes that occur during inflammation?
Definition
-vasoCONSTRITCTION
-vasodilation
-hyperemia
-margination
-pavementing
-diapidesis/emigration
-edema
Term
What is diapidesis/emigration?
Definition
neutrophils squeeze through endothelial cells and emigrate into the tissue from blood vessels
Term
What is the movement of cells to the site of inflammation?
Definition
chemotaxis
Term
What is the most prevalent cell in acute inflammation?
Definition
PMN's(neutrophils)
Term
What are the most active cells in periodontal pockets?
Definition
PMN's(neutrophils)
Term
What is a common primary neutrophil defect or disorder?
Definition
cyclic neutropenia
Term
What is neutropenia?
Definition
deficiency of neutrophils
Term
Which disorders is neutropenia secondary in?
Definition
-downs syndrome
-papillion-leferve
-IBD
-addison's
Term
What does CAL messure?
Definition
distance from the CEJ to the base of the pocket
Term
What is the best indicator of damage to the periodontium?
Definition
CAL
Term
What can scaling in shallow pockets lead to?
Definition
loss of attachment
Term
Periodontal pockets are characterized by BLANK migration of the JE.
Definition
apical
Term
What is the first thing assessed at the re eval appointment?
Definition
amount of inflammation still present
Term
Furcation classes
Definition
I. early
II.can enter furca but cannot pass through
III.can pass through but cannot see other end
IV. III with recession
Term
Where is arrached gingiva widest? Narrowest?
Definition
Widest-anterior
narrowest-premolars
Term
How wide is the attach gingiva in max and mand anteriors?
Definition
Max- 3.5-4.5 mm
Mand-3.3-3.9 mm
Term
How wide is the attached gingiva in max and mand premolars?
Definition
max- 1.9 mm
mand- 1.8 mm
Term
Is the width of attached gingiva calculated for palatal surfaces?
Definition
no
Term
How do you calculate the width of attached gingiva?
Definition
subtract probing depth from total width of attached gingiva
Term
The crest of the alveolar bone should be how many mm apical to the CEJ?
Definition
1-2 mm
Term
What should the contour of the alveolar bone follow the contour of?
Definition
the CEJ
Term
What is a suprabony defect?
Definition
base of the pocket is coronal to the alveolar bone, all gingival pockets
Term
infrabony defect
Definition
base of the pocket is apical to the alveolar crest
Term
What is primary occlusal trauma?
Definition
excessive force on tooth with normal bone support
Term
What is secondary occlusal trauma?
Definition
normal or excessive force on tooth with loss of support
Term
Does occlusal trauma cause periodontal disease?
Definition
NO
Term
What happens to the PDL with occlusal trauma?
Definition
widened
Term
What is kwashiorkor?
Definition
protein defect that can contribute to periodontal disease
Term
What 2 nutrients does a healthy periodontium need?
Definition
protein and vitamin C
Term
What is the hormone responsible for pregnancy gingivitis? What does it do?
Definition
progesterone, causes vascular changes
Term
What is the incubation period for herpes?
Definition
1 week
Term
If is a lesion is unilateral what does that usually mean?
Definition
it is viral
Term
What can sodium laurel sulfate cause?
Definition
apthous ulcers
Term
What are the 3 medications that cause gingival enlargement?
Definition
1.cyclosporine
2.calcium channel blockers(Procardia, niphedipine)
3.phenytoin/Dilantin
Term
How many taking dilantin have gingival hyperplasia? Cyclosporine?
Definition
dilantin- 50%
cyclosporine- 30%
Term
What is hypertrophy?
Definition
enlargement due to increase in cell size
Term
What is hyperplasia?
Definition
enlargement due to increase in cell number
Term
What are some treatment for severe gingival hyperplasia?
Definition
-gingivectomy
-flap procedures
-laser
Term
What are stillmans clefts?
Definition
gingival recession caused by improper flossing technique, vertical loss of papilla
Term
Mobility classes
Definition
I- 0.2-1 mm horizontal
II- Over 1 mm horizontal
III- horizontal and vertical
Term
What should be used to check mobility?
Definition
2 hand instruments, not fingers
Term
What is fremitus?
Definition
vibration of root surface when pt bites down
Term
Do people who smoke acquire more or less plaque? Have more of less apthous ulcers?
Definition
less plaque and ulcers
Term
Do smoker have an increased caries risk?
Definition
no
Term
Is hairy leukoplakia associated with smoking?
Definition
no, it is associated with HIV
Term
What is mucositis?
Definition
inflammation
Term
What is the most common surgical procedure to reduce pocket depths?
Definition
gingivectomy
Term
What is a osteoplasty?
Definition
bone recontoured
Term
What are sutured in osseous surgery used for?
Definition
to increase the apposition of incision edges and decrease the distance that cells need to migrate to the wound healing
Term
Are 3-wall bony defects or 1-wall bony defects better?
Definition
3-wall bony defects are better
Term
Why are periodontal packs containing eugenol not commonly used?
Definition
because they are irritating to the gintival tissues
Term
What do periodontal dressings do?
Definition
maintain tissue contours
Term
What is common upon removal of periodontal dressing?
Definition
white patching
Term
Are periodontal dressings to prevent plaque formation?
Definition
no
Term
What does guided tissue regeneration do?
Definition
uses barrier membrane to block migration of epithelial cells
Term
What is the main reason people receive regenerative procedures?
Definition
to treat infrabony defects
Term
What is neovascularization?
Definition
proliferation of new small blood vessels
Term
What are the 4 stages of fibrous repair?
Definition
1.blood clotting
2.wound cleansing
3.rebuilding tissue
4.wound remodeling
Term
When is archidonic acid produced?
Definition
upon injury
Term
What is archidonic acid metabolized to produce?
Definition
inflammatory mediators: prostaglandins, leukotrienes
Term
What are some medications that inhibit prostaglandins synthesis?
Definition
aspirin, ibuprofen
Term
What types of medications inhibit leukotriene synthesis?
Definition
asthma medications like Singulair
Term
What do prostaglandins cause?
Definition
pain, swelling, inflammation
Term
What are leukotrienes derived from? What do they cause?
Definition
-leukocytes(mast cells, etc)
-cause airway obstruction, etc
Term
What is dehiscense?
Definition
through and through, hole in bone from CEJ apically, 1-2mm long, may be as long as the root, gingival recession, bone loss, root exposure
Term
What is fenestration?
Definition
window of bone loss facial or lingual, places exposed root srface directly in contact with gingival tissue, bordered by alveolar bone on coronal aspect
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