4 ex 1 Flashcards
- What % of young adullsipeople present with recession
54.5
Perio abscess type of bacteria
Pg pi
Perio abscess most prevalent bacteria
a. Bacculis (i personally think it bacculis) isn’t spirochetes for NG
b. Spirochetes
c_ Cocci
Spirochetes
Person smokes a pack day and has. 7 mm pockets
Grade C Stage 4
Biological width has been replaced by
Supercrestal tissue attachement
No evidence that TOF causes abrasion/NCCL
.
TOF does not cause
reession
Two 4 mm implants you want how much mesial distal space?
14
4+4+3 (between implants)
+ 1.5 + 1.5 (between implants and tooth)
Differential diagnosis of EPL includes
Incomplete tooth fracture, developmental grooves.. CEP, periodontal abscess
Recession type 3 is loss of attachment greater than buccal attachment loss
True
Recessioni type 3 is loss of attachment less. than or equal to buccal attachment loss
False
Pericoronotilis is a Perio abscess
False
Aggressive periodontitis is now called
Periodontitits
Order of the zone
Bacterial zone,
neutoptil rich zone,
necrotic zone,
and spirochetal intiftration zone
New 2017 type thing
Ortho tx?
You have pt with deep perio pocket and no root fracture. You suspect endo/perio lesion but have to determine if perio/non perio piatient
True
Need to determine if tooth in question has
A) root damage (and if so, what type?)
B) No root damage
a) Periodontits pt?
b) Non periodontitits pt?
Which of the following is keratinized?
a. Oral epithelium
b. Sulcular epithelium
c. Junctional epithelium
Oral epithelium
What percentage of people have a free gingival groove demarcating the separation b/w the
marginal (free) gingiva and attached gingiva?
50%
All of the following are considered mucocutanous deformities except
a. Recession
b. Lack keratinized gingiva
c. Aberrant frenum
d. Abscess
d. Abscess
Moderate chronic periodontitis has how much attachment loss?
a. 3-4mm
3-4mm
The sulcular epithelium is lacking the stratum corneum and
a. Stratum granulosum
b. Stratum spinosum
c. Stratum basale
Stratum granulosum
The PDL has which cells?
Epithelial rests of malassez
The junctional epithelium attaches to the tooth via
Hemidesmosomes
The distance b/w the CEJ and alveolar bone in healthy adult pt is
2mm
In health, the biological width is
2 mm—the distance from the CEJ to the crest of the alveolar bone
Which of the following is not a gingival fiber?
a. Dentogingival
b. Circular
c. Transeptal
d. Interradicular
Interradicular
The PDL is comprised of the following types of collagen except?
a. Type I
b. Type II
c. Type III
d. Type IV
Type II
In 48 hours, plaque is __________ mineralized
a. 50%
50%
Which of the following is true about cementum?
a. Vascularized
b. Innervated
c. No lymphatics
d. Interstitial growth (APPOSITIONAL GROWTH is correct)
No lymphatics
Approximately ___% of US adults age 30-90 have periodontitis?
a. 50%
50%
Which of the following is not true of material alba
a. white or yellow color
b. blown off easily
c. has a definite structure
has a definite structure
Which of the following is true for subgingival plaque
Great diversity of the biological fauna
Which two bacteria make the corncob formation
F. nucleatum and P. gingivalis
Healthy plaque is comprised of
Gram positive aerobic indigenous flora
Which bacterium is associated with localized aggressive periodontitis?
AA
What is the main virulence factor of AA?
Leukotoxin
What is the main virulence facto of Pg?
Collagenase
Which of the following is not a secondary colonizer?
a. P. intermedia
b. A. actinomycetemcomitans
c. P. gingivalis
d. F. nucleatum
A. actinomycetemcomitans
Which bacterium is associated with pregnancy?
a. P. gingivalis
b. P. intermedia
c. F. nucleatum
intermedia
Which bacterium is associated with diabetes?
a. P. gingivalis
b. P. intermedia
c. F. nucleatum
P. gingivalis
What is the chance of transmission of AA and Pg b/w spouses?
20-30%
What % of dental calculus is inorganic?
70-90%
What is the most abundant form of calculus?
Hydroxyapatite
What is the softed form of calculus?
Brushite
Which forms of calculus is found subgingivally?
Brushite, Whitlockite
What makes up the inorganic components of calculus?
Phosphorus and calcium
During calculus formation after 48 hours how mineralized is it?
50%
Which of the following is not a mode of calculus attachment?
a. Organic pellicle
b. Cemental resorption bays
c. Microscopic irregularities in the cemental surface
d. Irregularities in the internal surface of the cementum
Irregularities in the internal surface of the cementum
- All of the following play a role of calculus in chronic periodontitis except
a. Unmineralized layer of plaque
b. Physical irritation
c. Reservoir for bacterial endotoxin and enzymes
d. Primary etiological factor for periodontitis
Primary etiological factor for periodontitis
If calculus is not shown radiographically, what are the chances it still exists?
50%
Generalized chronic periodontitis is when ____ of probing surfaces have attachment loss.
30%
Plausible correlating factors of disease identified in cross-sectional studies is
a. Risk factor
b. Risk indicator
c. Risk marker
Risk indicator
Correlating factors confirmed in longitudinal studies
a. Risk indicator
b. Risk factor
c. Risk marker
Risk factor
Smokers are how many times more likely to develop severe periodontal ds than non-smokers?
5
Smoking does all the following except
a. Increase collagenase production
b. Decrease subgingival temperature
c. Increase GCF flow
d. Increases tissue breakdown
Increase GCF flow
Smoking causes all of the following except
a. Affect wound healing
b. Increase thickness of the epithelium and vessel wall
c. Affects different microbiota
d. Decreases subgingival temperature
Increase thickness of the epithelium and vessel wall
Diabetes does not do which of the following
a. Increase thickness of basement membrane
b. Increase phagocytosis by PMNS
c. Increase AGE production
d. Increase collagenase activity
Increase phagocytosis by PMNS
All the following are risk indicators except
a. Genetics
b. Race
c. Age
d. Smoking
Smoking
8 mm of keratinized gingiva is measured and there is a pocket depth of 3 mm. What is the
attached gingiva?
5 mm
GM is 3 mm coronal to the CEJ and the pocket depth is 3 mm. What is the attachment loss?
0 mm
Which of the following is not a pocket described by location
a. Gingival pocket
b. Supraboney pocket
c. Infraboney pocket
d. Sulcular pocket*
Sulcular pocket*
Study showed which percent of chronic periodontitis is due to genetics?
50%
A 2 wall defect is also described as a
Crater
A goal of periodontal therapy is:
Prevent recurrence of periodontitis
Progressive model
Perio mainly effects posterior teeth
Which of the following is not cardinal sign of inflammation
a. Redness
b. Swelling
c. Pain
d. Bleeding
Bleeding
Which immunoglobulin attach to mast cells?
IgE
All the following are systemic conditions that effect perio except
a. Diabetes
b. Pregnancy,puberty
c. HIV/AIDS
d. Medications
e. High BP
High BP
All the following medications cause gingival enlargement except
a. Cyclosporine
b. Ca + channel blocker
c. Phenloin sodium
d. Beta blocker
Beta blocker
Innate immune system is primarily controlled by?
a. PMNs
b. T cells
c. B cells
PMNs
Specific cytokines may have diff biological effects dependent on
a. Concentration
b. Duration
Concentration
The major variation is individuals susceptibility to perio ds not their oral hygiene
The major variation is individuals susceptibility to perio ds not their oral hygiene
Which of the following stimulates differentiation of B and T cells
a. IL-6
b. IL-1
c. IL-8
d. PGE2
IL-6
Which of the following is pro-inflammatory and stimulates osteoclasts, fibroblasts, and macrophages? a. IL-1 b. IL-6 c. IL-8 d. PGE2
IL-1
Which of the following stimulate epithelial cells and fibroblasts?
a. TGF
b. PDGF
c. EGF
d. FGF
TGF
Main cytokine in initial gingival lesion
IL-8 (chemoattractant)
Which of the following is not a step of diapedesis?
a. Rolling
b. Adhesion
c. Margination
d. Aggregation
Aggregation
Which of the following is not an example of an MMP?
a. Collagenase
b. Gelatinase
c. Elastase
d. Hyaluronidase
Hyaluronidase
What percentage of the population has stipping?
40-50%
All of the following cytokines are proinflammatory except
IL4
How much bone loss must there be before it is detectable on a radiograph?
50%
Biggest risk factor for periodontitis?
Smoking
Successful colonization depends on which of the following?
a. Successful competition
b. Nutritional relationships
c. Overcoming host defenses
d. All of the above
All of the above
All of the following shape the alveolar bone except?
a. Interdental distance
b. Root shape
c. Crown-to-root ratio
d. Something else
Crown-to-root ratio
All of the following are components of the periodontia except
a. Gingiva
b. PDL
c. Cementum
d. Alveolar mucosa
Alveolar mucosa
Which of the following is found in a healthy mouth?
a. Streptococcus sanguis
Streptococcus sanguis
Supragingival plaque has a matrix that makes up what percentage?
50%
Which stage has the first sign of an increase in gingival crevicular fluid
a. Initial
b. Early
c. Established
d. Advanced
Initial
Which is the first stage where is stippling is lost
a. Initial
b. Early
c. Established
d. Advanced
Early
Proliferation of rete ridges are part of which phase?
a. Initial
b. Early
c. Established
d. Advanced
Early
What percentage of collagen is lost in early lesion?
70%
The early lesion develops in
4-7 days
In the established lesion, the cells are primarily
a. B cells
b. Plasma cells
c. T lymphocytes
d. PMNs
T lymphocytes
At what stage to microulcerations first appear?
a. Initial
b. Early
c. Established
d. Advanced
Established
In established lesion, the epithelial changes are a product of
Complement activation
All of the following are part of periodontal therapy except
a. Maintenance
b. Root planning
c. Prophylaxis
d. Antibiotics
Prophylaxis
All of the following are symptoms of chronic perio except?
Painn
At what CD4 count is someone immune compromised in HIV, causing increased risk of perio?
200 cells/microliter
Estrogen is broken down into progesterone by ______ and that is why this bacteria is more
prominent in pregnancy related peridontitis
Prevotella intermedia
Plaque which turns into periodontal disease is mostly made up of
Anaerobic, gram negative
Plasma cells are activated ________
B cells
Study showed which of the following?
a. All people are equally susceptible to PD
b. Not all people develop PD
Not all people develop PD
What differentiates periodontitis from gingivitis?
Attachment loss
Which of the following is true about gingivitis?
Does not effect the alveolar bone
