module 1/2/3
what services does a dental hygiene perform?
preventive, education and therapeutic
what is adaption?
what is angulation?
what is activation?
Adaptation: placement of the working end in
the correct relation to the tooth surface
Angulation: The angle formed by the plane of
the tooth surface and the plane of the face of
the blade
Activation: Action of the instrument in
performance of the task for which it is
designed
where are eye wash stations located and how long do we use them for?
55 feet from every unit, for 15 mins
what is the first form of bacteria?
How long does it take for calculus to form?
pellicle is the first attached
12 days
when was the earliest toothbrush invented and what was it made of? what were the disadvantages?
In the 1700s and hog bristles, bristle hair was hallowed and trapped bacteria
what is ethics?
General standard of right and wrong
what is standard precaution?
what is health history for?
reduce the risk of a medical emergency
when is visible clinical evidence of inflammation present
day 10-21
what is modified Stillman?
charters method?
Fones method?
what are supplemental brushing
how long do we brush
45 degree angled roll and vibrate
filaments directed towards plane at 45 degree for cleaning ortho
for young child for teeth brush inside, wide circular strokes without
occlusal brushing and tongue
2 minutes twice a day
what is HIPAA?
Health Insurance Portability
Accessibility and Accountability Act
Health Insurance Portability Accessibility and
Accountability Act
what is the sources of disease agents in the dental setting?
1. mouth of patient(major source)
2. mouths of clinicians
3. dental instruments
4. hard surfaces
5. exposed skin
what are the factors that influence blood pressure?
Force of heartbeat (energy)
Peripheral resistance; condition of arteries and
elasticity of vessels
The volume of blood in the circulatory system
what is the source of inflammation and disease?
plaque not calculus
what index do we use at hvcc?
when using a two-disclosing solution what color is the old and what color is the new
the plaque-free index
blue old, red new
what are the three parts of an instrument and what are they for?
handle-facilitates grasp, tactile sensitivity, and less muscle fatigue
shank- straight shanks are for anterior surfaces while angled shanks are for posterior surfaces
Terminal Shank:
determines placement
and purpose of the
instrument
– After Five Terminal
Shank allows access to
deeper periodontal
pockets
working end- has the face, back, lateral surface, cutting edges, toe or tip
what is PPE and when should PPE be changed?
gloves, masks, eyewear, faceshield and it should be changed everyday or when its visibly soiled
where is gracey 11/2 and 15/16 used for?
where is 13/14 and 17/18 used for?
11/12 and 15/16 are used mesial surfaces and 13/14 and 17/18 are used distal. the higher the number the more posterior.
what is the mineral source for supra and sub-calculus?
Supra-
Mineral source-Salvia
Attaches to any hard
surface via acquired
pellicle
Weak mode of
attachment- no actual
penetration into the
tooth
Easy to remove
Sub-
Mineral source- gingival
sulcus fluid and
inflammatory exudate
Attachment- Strong via
mechanical interlocking
Direct contact with
matrix and root structure
what is the chain of decay
cariogenic diet, microorganisms, salivary factors, tooth resistance
what are the examination instruments
mirror, explorers and probe
how long should you wash your hands for?
25 seconds
where does activation begin for posterior instruments?
distal line angle
how much inorganic composition makes up calculus? and what crystals are found in the intercellular matrix
75-85%
Hydroxyapatite
Whitlockite
Octocalcium phosphate
brushite
what stain is exogenous intrinsic?
tobacco stain, metallic stains,