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104 Cards in this Set

  • Front
  • Back
Community Health Practice vs. Private Practice
Community Health Practice
1. survey and Needs assemment <-->
2. data analysis <-->
3. program planning <-->
4. program operation <-->
5. funding <-->
6. appraisal or evaluation <-->
Community Health Practice vs. Private Practice
Private Practice
<--> 1. health history and examination
<--> 2. diagnosis
<--> 3. treatment planning
<--> 4. treatment
<--> 5. payment
<--> 6. evaluation
Four Gov. Levels of Community Dental Health
1. International (WHO - world health organization)
2. Federal - national significance (DHHS- dept. of health and human services) <-- published Healthy People 2012 ex: CDC (atlanta, ga)
3. State (state wide)
4. Local (county and city programs) ex: fluoridationa
Epidemiology
#s!
measured quantitatively
prevalence
estimated population of poeple who are managing a disease at *any given time*
Incidence
new cases of a particular disease *diagnosed each year
Uses of Epidemiology
* collecting data to describe normal biological processes
*understanding the natural hystory of a disease process
* measuring the distribution of a disease in a given population
* identifying determinants of dease
*testing hypotheses for prevention and control of a diease through studies
*planning and evaluating healt care services
Epidemic
unexpectedly large number of cases of diseaes in a particular population at a particular place and time
Ex: menigitis outbreak among senior hs students enrolled at Borah High School during fall quarter 2010)
Endemic
a disease that occurs regularly in a population as a matter of course
ex. hay fever during spring
pandemic
an outbreak of disease over a wide geographical area (often worlwide)
ex: worldwide swine flu scare
Descriptive studies
determines *who* is getting the disaese *where* and *when* the disease is occuring
Experimental studies
test *hypothesis* to establish CAUSE
null hypothesis
(experimental studies)
("H0" researcher prefers a null hypothesis)

researcher tries to disprove or nullify ***

ex of H0: Daily flossing does not lower interproximal caries rates
alternative hypothesis
(experimental studies)
"H1" al alternate way to the explain the phenomenon

ex of H1: Daily flossing decreases interproximal caries rates
Control Groups
(experimental studies)
experimental treatment is withheld: test subjects receive *placebo*
Treatment groups
(experimental studies)
receive experimental treatment
blindness
(experimental studies)
researcher is unaware of whether the subject is in the control or treatment group during the study
***helps prevent bias***
double blinded
(experimental studies)
NEITHER researcher nor subject knows who is receiving experimental treatment
***BEST way to prevent bias***
Analytical studies - three types
aimed at testing hypotheses
1. Retrospective (case-control) study - back in time
2. Prospective study - go into future
3. Longitudinal study - long period of time (1 week-10 years)
Random sample
every element in the population has an EQUAL chance of being selected (reduces chance of bias)

ex: pick names out of a phone book
Stratified sample
selecting an element according to certain subgroups

ex: identify all of the dental hygiene schools attending this board review and select two members from each school
systematic sample
select every 'nth' to participate

ex:count off by 6 and then form groups based on like numbers
Judgment sample
someone familiar with the population selects the sample
HIGH chance of bias!!

ex: your class president selects fellow students to be in one of four table clinic groups
Convenience sample
sample group is chosen based solely on conveniance

ex: the first 10 people to walk through the door today were asked to fill out a questionaire
Variables
(two types)
what is being observed or measured

1. dependent variable
2. independent variable
dependent variable
outcome of interest
change in response to some intervention

(the DEPENDent variable DEPENDS on the independent variable)
independent variable
the intervention
manipulated to produce a response

('In' is in BOTH INdependent and INtervention)
Descriptive Statistics
Measures of Central Tendency
data matrix
arranges data scores from lowest to highest measures

pg. 95
frequency of distribution
how often each score occurs

pg. 95
ungrouped scores
data is presented in ascending or descending order along with the frequency of each score

just count how many people have each score

pg. 95
cumulative scores
frequency of occurence of scores up to and including any given value

pg. 95
grouped scores
consecutive intervals (ex: grading)
pg. 95
Measures of Central Tendency
x-y graph
the mean, the median, and the mode
mean
average
most common measure of central tendency***
**sensitive to extreme values (range)
median
divides the distrubition of scores into two equal parts
50% of scores will be above the median; 50% will be below
**NOT affected by extreme high or low scores
Mode
*BOARD FAVORITE*

MOST frequently occuring score
Affects the skew
When data is plotted using a NORMAL curve, the mean, median, and mode are _______!
EQUAL!

* a noraml curve is a "bell" or "gaussian"
Measures of Dispersion
describe how WIDE the scores are around a contral point (in a normal curve, the central point would be the mean, median, and mode)
Range
the difference between the high and low score of a data matrix ; affected by extremely high or low scores
standard deviation
Most commonly used method of dispersion in oral hygiene reasearch and reflect the range within the data matrix

the bigger the rang or 'standard deviation' , the wider the distribution curve.
Positive skew
when more scores fall in the lower range, the curve will have a positive skew when plotted

pg.99
Negative skew
when more sscores fallin the higher range, the curve will have a negative skew potted

pg. 99
Validity
does it answer the questions
Reliability
extent to which the method of measurement CONSISTENTLY performs
two groups of examiner reliability
intraexaminer reliability
interexaminer reliability
intraexaminer reliability
consistent performancy by the SAME EVALUATIOR
interexaminer reliability
consistent performance BETWEEN different examiners is INCREASED by *calibration*
Sansitivity
diagnosis
presence of a disease
specificity
absence of a diseaes
Correlation Co-efficient
determines strength of relationship between two variables
shows probable cause and effect
given as a number between +1 and -1

(the closer the correlation co-efficient is to EITHER +1 or -1 (.8 for example) the stronger the correlation
positive correlation
as the value of x increases the value of y increases
Direct association
negative correlation
as the value of x increases the value of y decreases
t-test
statistical measure used to test the hypothetical difference between TWO mean scores
ANOVA "Analysis of Variance"
used when testing hypothesis
refers to the probability that a condition or circumstance would happen just by chance whithout experimental intervention
standard of acceptability is 1 out of 20 or p-value of < or = 0.05
a p-value greater than 0.05 will affect study results (negatively)
Primary services
preventive therapies (cleaning)

**sports mouth guard**
secondary services
controlling a disease or condition after it occurs (periodontal therapy and composites or crowns)
tertiary services
replacing lost tissues (implants or bridges)
Characteristics of an ideal index
simple
valid
reliable
clear
sensitive
quantifiable
objective
accepted
Reversible
can be resolved or reversed
(gingivitis)

-measures-
irreversible
CANNOT be resolved
(periodontal disease)

-measures-
Simples
presence or absence of disease

-measures-
Cumulative
both past and present
DMFT/DMFS
decayed,missing,filled,Teeth / Surface
irreversible
measures past and present caries experience in populations with adult dentitions (because they're capitalize)
deft
decayed, need for extraction,filled teeth
irreversible
measures observable caries experience in deciduous teeth

***does not take into account teeth that have been extracted or exfoliated due to past caries experience!***
dft/ dfs
decayed fiiled teeth / surfaces
irreversible
measure observable caries experience in decidious teeth (because they're lower cased)
RCI
root carries index
requires recession!!!
CAMBRA
caries management by risk assesment
measures risk factors and manages them through minimally invasive procedures

CDA's (california dental associations most well known for this. list *24 factors*

seperate form for pediatric patients
GI
gingival index
reversible
based on severity versus extent
individuals or study participants
SBI
sulcular bleeding index
reversible
detects EARLY signs of gingivitis
short term trials
PDI
periodontal disease index
both irreversible AND reversible
RAMFJORD (can be aka Ramfjord index)
PI
Periodontal Index
irreversible
Russell
questionable for validity (no CAL) - LIMITATIONS
PSR
periodontal screening and recording
special probe - nehbors
useful as a preliminary screening technique or large populations
CPITN
community periodontal index of treatment needs
requires special probe
OHI-S
Simplified Oral Hygiene Index
better for group
measures oral hygiene status by assessing sub and supragingival plauqe and calcluas
P1I
plaque index
reversible
silness and low
conjuction with the gingival index
scores plaque thickness at gingival margin
PHP
patient hygiene performance
reversible
plauq after toothbrushing (how well patient performs)
VMI
volpe-manhold index
used to test agents for plaque control
NEEDS ASSESSMENT!
process by which the planner identifies gaps between what is and what ought to be
target population
***collects baseline data!!!****
ways to conduct needs assessment
direct observation
interview
questionnair
survey
epidemiological surveys
records,documents, charts
access to care issues
need : type of care available
demand: type of care desired
utilization: actual use
barriers: obstacles which interfere with care
ways to observe ned
through eyes of the PLANNER
objective
through eyes of TARGET POPULATION
subjective (what they want, may not be what they need)
Type 1 Examination method
comprehensive examination usesing mouth mirror, explorere, lightlign, radiographs, study models, etc

not practical for most community programs
Type II examination method
limitied examination including mouth mirror, explorer, lighing, radiographs if available

limits use in community
Type III Examination method
mirror and lighting ONLY
Type IV Examination method
tongue depressor and lighting ONLY
populations profile
gathers info about target population
# of individuals who will take part
geographical distribution of target population
rate of growth in the community
degree of urbanization
ethnic language profile
nutritional status
standard of living
amount and type of community services and utilities available
profile of school system
general health profile
Medicare
elderly and disabled
Medicaid
poor
security act of 1965
COBRA
consolidation omnibus budget reonciliation act of 1985 continue temporary health care coverage (18 months)
Block grants
lump sum
use at discretion to meet a need
line item grant
specifies where monies are to go
Goals
broad-based statment of desired outcome of a program
objectives
steps that must be taken
MUST BE MEASURABLE
Drafting a Plan
develop a lesson plan and implementation strategy

****choose activities or procedures that have been successful in the PAST!!! No need to re-invent the wheel****
external motivation
promise of a reward (children)
internal motivation
change as a result of self awareness (adult)

BETTER predictor of behavior change
principles of teaching
teach the way skills are to be used
establish goals and objectives
evaluation need to be ONGOING (beginning to end)
formal delivery
lecture, demonstration, discussion etc

active
informal delivery
brochures, pamphlets, bullboards, video etc

passive
Stages of Learning
Ugly Apes Sit In A Hut
unawareness
awareness
self-interest
involvement
action
habit
Evaluation of a program
program appraisal
analyses whether or not goals and objectives were met***
may be formal (written, pre and post test) or informal (questions audience during presentation
Evaluation must be continuous!!! from beginning to end!
you need _______
baseline data from the needs assesment to determine groups progress
summative evaluation
outcome evaluation
formative evaluation
conducted during the program