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Epidemiology of Periodontal Disease
Chapter 5
59
Dentistry
Professional
02/13/2013

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Term
What is epidemiology?
Definition
the study of health and disease within the total population and the risk factors that influence health and disease
Term
What is a risk factor?
Definition
anything that increases a host's susceptibility to perio disease
Term
What is risk used to predict?
Definition
occurrence of disease
Term
Are risk factors the cause of disease?
Definition
no, they predict the probability of disease
Term
What is prevalence?
Definition
Number of people having disease(new and old cases)
Term
What is incidence?
Definition
rate of NEW cases occuring
Term
Who do population studies study?
Definition
large numbers of individuals withing a population
Term
What are some identified risk factors of periodontal disease?
Definition
1.heridity
2.gender
3.physical enviorment
4.systemic factors
5.socioeconomic status
6.personal behavior
Term
What is prevalence?
Definition
numbers of ALL disease that are identified in a specific population at a given time
Term
What is incidence?
Definition
numbers of NEW disease cases in a specific population at a given time
Term
What are indices?
Definition
measurement systems to collect data, they standardize and reproduce findings for comparison
Term
What are some commonly used periodontal indices?
Definition
1.CPITN
2.EIBI
3.GBI
4.GI
5.PSR
Term
What does CPITN stand for? Who developed it?
Definition
Community and Periodontal Index pf Treatment Needs, developed by WHO
Term
What does EIBI stand for? What does it access?
Definition
Eastman Interdental Bleeding Index, assess interdental bleeding indices using toothpick
Term
What does GBI stand for? What does it access?
Definition
Stands for Gingival bleeding index, assesses interdental bleeding 10 seconds after flossing
Term
What does GI stand for? What is it?
Definition
Gingival index, subjective assessment of redness, swelling, and bleeding
Term
What does PSR stand for? What is it?
Definition
-Periodontal screening & recording
-quick assessment of perio disease(1 number for each sextant)
Term
Who developed the PSR?
Definition
AAP and ADA
Term
What are variables? Are they the same in each study?
Definition
-items in a study to be measured
-differ from one study to the next, EX: CAL, probe depth, etc.
Term
What are some variables that are associated with the prevalence of periodontal disease? (5)
Definition
1.gender
2education level
3.socioeconimic status
4.age
5.access to dental care
Term
Is periodontal disease more common in males or females?
Definition
males have males have a greater prevalence and severity of periodontal disease
Term
How does education level effect chances of periodontal disease?
Definition
there is greater incidence of periodontal disease in individuals with lower levels of education
Term
How does socioeconomic status effect the prevalence of periodontal disease?
Definition
there is a greater incidence of periodontal disease in individuals with lower levels of incomes
Term
How does age affect the prevalence of periodontal disease?
Definition
-severity of perio disease increases with age
-difficult to assess because of other risk factors associated with age
-medical/health risk factors associated with perio disease
Term
How does access to dental care effect the prevalence of periodontal disease?
Definition
individuals who desire or need dental care may not have access to care
Term
Is it easy to evaluate for periodontal disease in a population?
Definition
no, because it is not very speficic. It is easier to measure for caries because that is more objective
Term
Periodontal disease involves both BLANK and BLANK tissues?
Definition
hard and soft
Term
BLANK is one of the most widespread diseases in the US in adults.
Definition
periodontal disease
Term
What is the leading cause of tooth loss in adults older than the age of 45?
Definition
periodontal disease
Term
Are males or females more likely to have gingivitis?
Definition
males
Term
What is the age range of males that have the highest prevalence of gingivitis?
Definition
13-17
Term
Do adolescents or adults have a higher prevalence of gingivitis?
Definition
adolescents
Term
What is etiology?
Definition
the study of factors that may be involved in the development of disease
Term
What was considered the etiology of periodontal disease before 1960?
Definition
calculus
Term
What was considered the etiology of periodontal disease from 1965-1985? What were the risk factors?
Definition
plaque, bacterial plaque
Term
What is the current etiology of periodontal disease?
Definition
host-baterial, many risk factors, control of bacteria, host, and local and systemic factors
Term
Before 1960 professional prophylaxis was scheduled how often? How often was the patient advised to brush?
Definition
-prophy every 6 months
-patient advised to brush 3 times/day
Term
Before 1960, BLANK + tooth= disease
Definition
caculus+tooth=disease
Term
What was believed to be the main cause of periodontal disease in 1965-1985
Definition
bacterial plaque
Term
What was believed to prevent periodontal disease in 1965-1985?
Definition
meticulous daily oral hygiene
Term
In 1965-1985, if the condition of the patient did not improve with meticulous daily oral hygiene, whose fault was it?
Definition
the patients, they were taught daily plaque removal
Term
How often were patient scheduled for prophylaxis in 1965-1985?
Definition
every 3-6 months
Term
Is the current view that bacterial plaque alone causes periodontal disease?
Definition
no, there are other risk factors involved
Term
What controls whether disease is present or not?
Definition
the interaction of host and pathogenic bacteria
Term
How often should someone receive professional prophylaxis based on current views?
Definition
as often as needed
Term
Based on current views, what must be managed for to avoid periodontal disease?
Definition
bacterial, local, and systemic factors
Term
What was the old theory on progression of periodontal disease? When was this believed?
Definition
continuous progression theory, before 1980
Term
What is the theory of gingivitis in the continuous progression theory?
Definition
that all untreated cases of gingivitis leads to periodontitis
Term
For the historical perspective- All cases of perio progress BLANK and tissue destruction is BLANK.
Definition
slowly, steady
Term
What is the current perspective on periodontal disease progression?
Definition
intermittent progression theory
Term
What occurs in the intermediate progression theory?
Definition
periods of activity and inactivity
Term
Is the current belief that all gingivivits leads to periodontitis?
Definition
no, untreated gingivitis may not progress to perio
Term
What is periodontal pathology?
Definition
the study of characteristics and cases of periodontal diseases and changes that occur in structure and function of the periodomtium as a result of disease
Term
So what is currently believed to be the etiologies of periodontal disease? (4)
Definition
1.primary- dental plaque biofilm
2.local contributing factors
3.systemic contributing factors
4.host response to biofilm bacteria
Term
What are local contributing factors?
Definition
oral conditions that increase an individuals susceptibility to periodontal disease(ex: calculus, faulty restorations)
Term
What are some systemic conditions that can lead to periodontal disease? (6)
Definition
1.tobacco use
2.diabetes
3.osteoporosis
4.hormone alteration
5.stress
6.prescription meds
Term
What is host reponse?
Definition
the way the body reacts to bacteria
Term
What is the tissue destruction in periodontitis caused from?
Definition
the host response to the bacteria present
Term
What determines the onset and severity of periodontal disease?
Definition
the host response
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