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112- Exam 2
SCC- Fellman
159
Dentistry
Professional
02/20/2016

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Cards

Term
What is the prime purpose of the immune system?
Definition
protect the life of the individual
Term
What is the term for the way in which an individuals body responds to an infection?
Definition
host response
Term
What are the two ways the host responds to infection (forms of attack)?
Definition
sending cells to infection site
producing biochemical substances to fight invading cells.
Term
What is an example of a systemic disease that causes loss of immune response?
Definition
HIV/AIDS
Term
What immune cells are inhibited for individuals with HIV?
Definition
CD4s and neutrophils
Term
What are the two phases of inflammation?
Definition
acute and chronic
Term
What are the 5 signs of acute inflammation?
Definition
heat
redness
swelling
pain
loss of function
Term
The 5 signs of acute inflammation are primarily due to what physiological response?
Definition
increase in blood flow to the area of infection
Term
What are the first cells to arrive at the cite of an infection"?
Definition
PMNs
Term
What compound is released by PMNs when they arrive at the site of an infection
Definition
cytokines (signal more phagocytic cells to the area)
Term
What is a pathological condition that can destroy healthy tissue and is characterized by long term inflammatory response
Definition
chronic inflammation
Term
What stage of inflammation is usually painless and doesn't present with the typical signs of redness, swelling, etc.
Definition
chronic inflammation
Term
which inflammation phase is characterized by an accumulation of macrophages?
Definition
chronic inflammation
Term
leukocytes (PMNs and macrophages) release what compounds that are responsible for perpetuating the inflammatory response seen in chronic inflammation?
Definition
inflammatory mediators
Term
What are 5 examples of conditions with chronic inflammation
Definition
rheumatoid arthritis
asthma
diabetes
gingivitis
periodontitis
Term
what are the two leukocytes involved in periodontal disease?
Definition
PMNs(neutrophils)
macrophages
Term
What is another name for PMNs?
Definition
neutrophils
Term
How long do PMNs live?
Definition
short life span
die when become engorged with bacteria
Term
What process attracts PMNs to the cite of injury?
Definition
chemotaxis
Term
What are the digestive enzymes within PMNs called?
Definition
lysosomes
Term
Which leukocytes are most effective at killing perio pathogens?
Definition
PMNs
Term
Leukocytes are called monocytes when they are located where in the body?
Definition
bloodstream
Term
Leukocytes are called macrophages when they are located where in the body?
Definition
tissue
Term
How long to macrophages live?
Definition
long lived (seen in chronic inflammation)
Term
Are macrophages slow or fast to arrive at the site of inflammation?
Definition
slow
Term
What are small leukocytes that help defend the body?
Definition
lymphocytes
Term
What are the two classes of lymphocytes?
Definition
B cells
T cells
Term
Which lymphocytes make antibodies?
Definition
B cells
Term
What are the two forms of B cells
Definition
plasma B cells
memory B cells
Term
what shape are antibodies?
Definition
Y
Term
What is another name for antibodies?
Definition
immunoglobulins
Term
What are the 5 major classes of immunoglobulins
Definition
M (IgM)
D (IgD)
G (IgG)
A (IgA)
E (IgA)
Term
What is the role of T cells in the immune response?
Definition
intensify the response of other immune cells
Term
What substance do T cells release to further stimulate the immune response?
Definition
cytokines
Term
What is the term for compounds secreted by immune cells which activate the body's immune response?
Definition
inflammatory mediators
Term
Inflammatory mediators are also known as?
Definition
middlemen
Term
What are 3 inflammatory mediators important in perio disease
Definition
cytokines
prostaglandins
matrix metalloproteinases (MMPs)
Term
What are 2 functions of cytokines in the immune response?
Definition
1. signals other phagocytes (PMNs and macrophages) to the site of infection
2. increase vascular permeability
Term
What are 4 cytokines important in perio?
Definition
IL-1 (interleukin)
IL-6
IL-8
TNF-alpha (tumor necrosis factor)
Term
What are two negative impacts of cytokines?
Definition
can initiate tissue destruction and bone loss in chronic infections
Term
What produces cytokines in response to injury?
Definition
immune cells (PMNs, macrophages, B lymphocytes, epithelial cells, osteoblasts, gingival fibroblasts)
Term
What are the prostaglandins produced in the immune response?
Definition
D, E, F, G, H, I
Term
What produces prostaglandins?
Definition
most cells in the body
Term
What are 3 functions of prostaglandins?
Definition
1. increase permiability of blood vessels
2. trigger osteoclasts to destroy alveolar bone
3. promote overproduction of MMP enzyme
Term
Which compound causes most of the alveolar bone destruction seen in perio?
Definition
Prostaglandin E (PGE)
Term
How many Matrix Metalloproteinases are there?
Definition
12
Term
Which compound in the immune response cause breakdown of the connective tissue matrix?
Definition
MMPs
Term
What is the role of MMPs in healthy tissue?
Definition
regular normal turnover of periodontal CT matrix
Term
High levels of MMPs result in extensive collagen destruction in periodontal tissues. How does this tissue breakdown present clinically?
Definition
gingical recession
pocket formation
tooth mobility
Term
MMPs are what type of compound?
Definition
enzymes
Term
The compliment system is a series of what type of compound?
Definition
proteins
Term
What are two overall goals of the compliment system?
Definition
facilitate phagocytosis of bacteria
kill bacteria directly by forming pores in the cell walls
Term
What are the 4 functions of the compliment system
Definition
destruction of pathogens
opsonization
recruitment of phagocytes
immune clearance
Term
What protein of the compliment system is able to directly lyse bacteria
Definition
membrane attach complex
Term
What is the most important action of the compliment system?
Definition
opsonization
Term
What is the term for the function of the compliment system that coats the surface of bacteria with compliment components which allow phagocytes to identify and destroy bacteria?
Definition
opsonization
Term
What does immune clearance mean?
Definition
removing immune complexes from circulation in the body
Term
what are the 4 phases of microscopic changes in periodontal disease
Definition
1. sub-clinical gingivitis (early bacterial accumulation phase)
2. Early gingivitis (plaque overgrowth phase)
3. Established gingivitis (subgingival plaque phase)
4. periodontitis (tissue destruction phase)
Term
what is the term for a specific surface of a tooth that is experiencing perio disease"?
Definition
disease site
Term
what is the term for oral conditions which increase susceptibility to perio infection?
Definition
local contributing factors
Term
T/F- local contributing factors initiate perio disease?
Definition
false
Term
What are the 3 ways local contributing factors increase the risk for disease?
Definition
1. increase biofilm retention
2. increase biofilm pathogenicity
3. cause direct damage to the periodontium
Term
what is an example of increased biofilm pathogenecity as the result of local contributing factors?
Definition
biofilm covered calculus
Term
what is an example of direct damage to the periodontium as the result of local contributing factors?
Definition
heavy chewing forces on a tooth
Term
What are the two factors that influence biofilm retention?
Definition
dental calculus
tooth morphology
Term
What are the 3 modes of calculus attachment to the tooth surface?
Definition
1. pellicle
2. tooth irregularities
3. direct contact with tooth
Term
what is the most common form of attachment to the tooth surface?
Definition
pellicle attachement
Term
what are 3 morhphological factors that can increase calculus retention?
Definition
poorly contoured restorations
untreated tooth decay
grooves and concavities in the tooth surface
Term
What is the term for a developmental groove on the palatal surface of a tooth?
Definition
palatogingival groove
Term
palatogingival grooves are common on which teeth
Definition
max lat incisors
Term
which tooth has the most prominent root concavity?
Definition
M root of max 1st permolar
Term
what interdental aid is used for self care of root concavities?
Definition
interdental brushes
Term
T/F- in chronic inflammation, the inflammatory process can become so intense that is inflicts permanent damage to body tissues
Definition
True
Term
Which cytokines play an important role in periodontitis?
Definition
IL-1, 6, 8 and TNF-alpha
Term
T/F- Chronic inflammation is a pathological condition characterized by tissue destruction
Definition
True
Term
Which phase of perio disease progression is characterized by tissue destruction?
Definition
periodontitis phase
Term
If the bacterial pathogens in early gingivitis continue to proliferate, what is the next phase of disease progression?
Definition
established gingivitis
Term
In which phase of periodontal disease progression does the plaque biofilm extend subgingivally into the gingival sulcus?
Definition
established gingivitis phase
Term
what type of diabetes is caused by damage to the pancreas?
Definition
type I
Term
What type of diabetes develops when the body does not make enough insulin or doesn't properly react to insulin?
Definition
Type II`
Term
What percentage of people have type 1 diabetes?
Definition
5-10%
Term
What percentage of people have type II diabetes
Definition
90-95%
Term
What is diabetes that occurs during pregnancy?
Definition
gestational
Term
Do individuals with well controlled diabetes have higher rates of periodontal disease?
Definition
no
Term
What is the A1c and glucose level goal for diabetics?
Definition
A1c <7%
80-120 mg/dL
Term
What glucose level indicates a greater risk for infection?
Definition
180-300 mg/dL
Term
What is an unacceptable glucose range?
Definition
>300 mg/dL
Term
T/F- 6-18 year olds with diabetes showed more periodontal disease than those without diabetes?
Definition
True
Term
What are 3 signs of leukemia-associated gingivitis?
Definition
swollen, glazed, spongy tissue
red to deep purple colored gingiva
possible gingival enlargement.
Term
What are the two most common HIV associated periodontal conditions
Definition
LGE- linear gingival erythema
NPD- Necrotizing periodontal diseases
Term
What does Linear gingival erythema look like?
Definition
2-3 mm band of erythema around the free gingiva (does not respond to periodontal instrumentation or self-care))
Term
What is another condition associated with HIV that usually presents on the hard palate?
Definition
palatal candidiasis
Term
Osteoporosis occurs most frequently in what 4 groups of people?
Definition
postmenopausal women
sedentary individuals
bedridden individuals
long term steroid therapy
Term
How many people does osteoporosis affect?
Definition
20 million
Term
does osteoporosis initiate periodontitis?
Definition
no
Term
Is the link between skeletal osteoporosis and alveolar bone loss proven?
Definition
No
Term
what causes pubertal gingivitis?
Definition
hormones cause increased blood circulation in gingiva which increases sensitivity to local irritants.
Term
Is puberty gingivitis greated in men or women?
Definition
equal
Term
What usually determines if a woman will develop pregnancy gingivitis?
Definition
if they had gingivitis before becoming pregnant
Term
What is another name for a pregnancy tumor/
Definition
pyogenic granuloma
Term
Where do pregnancy tumors usually form?
Definition
interdental gingiva or gingival margin due to strong reaction to plaque
Term
Do pregnancy tumors hurt?
Definition
no
Term
What are 4 changes associated with menopause and postmenopause?
Definition
dry mouth
burning sensation
altered taste
bone loss may be exacerbated
Term
What is the most common birth defect?
Definition
down syndrome
Term
In down syndrome, cells contain 3 of which chromosome?
Definition
21
Term
how many people have down syndrome in the united states?
Definition
350,000
Term
what is the expected lifespan of someone with down syndrome?
Definition
55
Term
what are 5 facial traits of down syndrome?
Definition
flat facial profile
small nose
upward slant of eyes
small skin folds on inner corner of eyes
protruding tongue and open mouth
Term
what are 6 medical development issues for down syndrome
Definition
increase risk for congenital heart defects
increased infection risk
respiratory issues
GI abnormalities
childhood leukemia
abnormal PMN function (50%)
Term
What is the most likely cause of higher severe periodontitis prevalence in down syndrome patients
Definition
impaired PMN chemotaxis and phagocytosis
Term
what is the prevalence of severe periodontitis in down syndrome patients under ago 30?
Definition
60-100%
Term
where does gingival overgrowth usually begin?
Definition
interdental papilla
Term
how many medications have the potential to cause gingival enlargement?
Definition
20
Term
What are the three main medications that can cause gingival enlargement?
Definition
anticonvulsants
immunosuppressives
calcium channel blockers
Term
what is another name for dilantin?
Definition
phenytoin
Term
what reduces the rate of gingival overgrowth for patient's taking dilantin?
Definition
scrupulous home care
Term
What is the most immunosuppressant prescribed?
Definition
cyclosporine
Term
what percentage of people taking cyclosporine for organ transplants experience gingival overgrowth?
Definition
25%
Term
What calcium channel blocker is known to cause gingival overgrowth
Definition
nifedipine
Term
What conditions are treated with nifedipine?
Definition
hypertension
angina
cardiac arrhythmias
Term
what percentage of people taking nifedepine experience gingival overgrowth?
Definition
38%
Term
which immune cells secrete antibodies
Definition
B lymphocytes
Term
in what stage of inflammation is pain a common symptom?
Definition
acute inflammation
Term
T/F- chronic inflammation is a pathological condition characterized by tissue destruction?
Definition
True
Term
which phase of periodontal disease progression is characterized by tissue destruction?
Definition
periodontitis phase
Term
if the bacterial pathogens in early gingivitis continue to proliferate, what is the next phase of disease progression?
Definition
established gingivitis
Term
IN what phase of periodontal disease progressions does the plaque biofilm extend subgingivally into the gingival sulcus?
Definition
established gingivits phase
Term
T/F- more than half of the cases of periodontal disease among adults in the US may be caused by smoking?
Definition
True
Term
When a phagocyte ingests bacteria, what is the vesicle with bacteria inside called? what is it called when it fuses with digestive materials?
Definition
phagosome / phagolysosome
Term
The bacteria associated with periodontal disease are most effectively phagocytized by what cells?
Definition
PMNs
Term
B lymphocytes are also known as?
Definition
plasma cells
Term
What are the 3 ways antibodies defend the host?
Definition
neutralize bacteria and bacterial toxins
coat bacteria for faster phagocytosis
activate compliment system
Term
What is the main source of PGE in inflamed periodontal tissues?
Definition
macrophages
Term
what is the protein of the compliment system that is able to directly form pores in bacterial cell membranes
Definition
membrane attack complex
Term
what percentage of calculus is inorganic?
Definition
70-90%
Term
what are 3 inorganic compounds found in calculus?
Definition
1. calcium phosphate
2. calcium carbonate
3. magnesium phosphate
Term
what is the term for newly formed crystalline calculus?
Definition
brushite
Term
what is the term for crystalline calculus less than 6 months old?
Definition
octocalcium phosphate
Term
What is the term for crystalline calculus more than 6 months old?
Definition
hydroxyapatite
Term
what is the term for excessive occlusal forces on a healthy periodontium?>
Definition
primary trauma from occlusion
Term
what is the term for normal occlusal forces on an unhealthy periodontium previously weakened by periodontitis?
Definition
secondary trauma from occlusion
Term
what are two examples of parafunctional habits?
Definition
clenching
bruxism
Term
What are 6 examples of direct damage to the periodontium?
Definition
food impaction
tongue thrusting
mouth breathing
faulty crown design
improperly contoured restoration
faulty removable prosthesis
Term
What is the term for an improperly contoured restoration that doesn't allow enough space for the interdental papilla
Definition
encroaching on the embrasure space
Term
A crown margin within how many mm's of the crest of alveolar bone will result in bone resorption?
Definition
2mms
Term
What are 8 systemic risk factors for periodontitis
Definition
1. tobacco
2. Diabetes
3. osteoporosis
4. hormone alteration
5. psychosocial distress
6. genetics
7. AIDS
8. systemic medications
Term
Do smokers have more plaque and calculus than non-smokers?
Definition
same plaque, more calculus
Term
what are some oral manifestations of diabetes?
Definition
burning tongue
xerostomia
candidiasis
Term
Does puberty gingivitis occur more in boys or girls?
Definition
same for both
Term
what are 4 stress related behaviors that may increase risk of periodontal disease?
Definition
neglect of plaque control
changes in diet
increase in smoking
increase in parafunctional habits (bruxism)
Term
What groups is NUG most commonly seen in?
Definition
young adults under stress
soldiers on the front lines
smokers
Term
What is the term for gingivitis that involves tissue necrosis that is limited to the gingiva?
Definition
NUG (necrotizing ulcerative gingivitis)
Term
What is the term for periodontitis that involves tissue necrosis of gingival tissues combined with loss of attachment and alveolar bone loss?
Definition
NUP (necrotizing ulcerative periodontitis)
Term
What periodontal disease is characterized by severe pain, loose teeth, odor, bleeding, rapid bone loss, and is usually the result of severe immune suppression
Definition
NUP (necrotizing ulcerative periodontitis)
Term
what form of periodontal disease presents as a 2-3 mm red band along the gingival margin?
Definition
LGE- linear gingival erythema
Term
is LGE most common in anterior or posterior teeth?
Definition
anterior
Term
What group is gingival overgrowth more common in when taking dilantin?
Definition
children and young adults
Term
Gingival overgrowth from Nifedipine usually recurs after how many years from surgical removal?
Definition
1-2 years
Term
overactivity of what cells cause gingival overgrowth?
Definition
gingival fibroblasts (overproduce collagen matrix)
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