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Dental Hygiene 1 (Costley) > Module 1 > Flashcards

Module 1 Flashcards

1
Q

What are the six essential features for disease transmission?

A 
Infectious Agent
Reservoir
Port of Exit
Mode of Transmission
Port of Entry
Susceptible Host
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2
Q

List the factors that influence the development of infection

A 
Number of organisms
Duration of exposure
Virulence of the organisms
Immune status of the host
General physical health and nutritional status of the host
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3
Q

________, systemic diseases, drug therapy, and _______ are all factors that alter normal defenses

A

Abnormal physical condition (congenital or acquired)

Prostheses and Transplants

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4
Q

Give an example of a systemic disease

A

Diabetes
Alcoholism
AIDS

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5
Q

Give and example of drug therapy

A

Steroids

Immunosuppressants

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6
Q

Airborne infections can be passes to a host through ______ or ______

A

Dust-borne organisms

Aerosol Production

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7
Q

_______, _______, and _______ travel in the dust

A

Clostridium tetani (tetanus bacillus)
Staphylococcus Auresus
Enteric Bacteria

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8
Q

What can we do to control or decrease the number of dust-borne pathogens?

A

Disinfect the surfaces of all equipment that could be contacted during an appointment

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9
Q

What are the two categories for airborne particles?

A

Aerosols

Spatter

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10
Q

How are airborne particles classified?

A

By size

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11
Q

Aerosols are less than ______ in diameter and nearly all are less than ______

A

50 mu

5 mu

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12
Q

_______ are biological contaminants that occur in solid or liquid form, are _______, may remain suspended in air for a _______ period of time, and may contain ______ organisms

A

Aerosols
Invisible
Long
Respiratory disease-producing

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13
Q

What is another name for an aerosol particle?

A

Droplet Nuclei

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14
Q

Aerosols ______ or smaller may be breathed deep into the lungs

A

5 mu

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15
Q

Heavier, larger particles that may remain airborne for a short period of time are?

A

Spatter

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16
Q

Why does Spatter only remain airborne for a short period of time?

A

Because of it’s size and weight

17
Q

Spatter is composed of particles ______ than 50 mu in diameter, and usually fall within ______ of origin

A

Greater

2 feet

18
Q

Spatter may be ______ especially after landing on an origin like ______, ______, or ______

A

Visible
Objects
People
Floor

19
Q

Aerosols and spatter are created by ______, speaking, coughing, ______, and ______

A

Breathing
Sneezing
Singing

20
Q

When are aerosols and spatter produced?

A

During intraoral procedures such as treatment or an exam

21
Q

The number of aerosols ______ when produced by ______, air/water spray, hand piece activity, or ______

A

Increases
Air spray
Ultrasonic scaling

22
Q

______, ______, and ______ and provide contents of aerosols

A

Microorganisms
Particles of Cavity preparation
Ultrasonic scaling

23
Q

An aerosol may contain a ______ organism or ______ of microorganisms adhered by ______ contained within a ______ droplet

A

Single
Clump
Dust
Liquid

24
Q

List the contents of aerosols from cavity preparation

A

Tooth fragments
Microorganisms from saliva, biofilm, and/or oropharynx/nasopharynx
Oil from handpiece
Water from cooling equipment

25
Q

What are some of the microorganisms found in aerosols from Ultrasonic scaling?

A 
Staphylococcus auresus, albus, and pyogenes
Streptococcus viridans
Lactobacilli
Actinomyces
Pneumococci
Diphtheroids
26
Q

______ may also be spread by ultrasonic scaling

A

Viruses

27
Q

______ aerosols and ______ are in greater concentration ______ to the site of instrumentation

A

Bacteria-laden
Spatter
Close

28
Q

The quantity of aerosols and spatter ______ with distance

A

Decreases

29
Q

How do aerosols travel? Can they move to different rooms?

A

With the air currents

Yes, they can move from room to room

30
Q

How can we prevent the transmission of infection?

A

Eliminate the organisms at their source
Interrupt the transmission
Protect susceptible recipients
Monitor procedures for all patients with/without a known serious communicable disease
Oral Hygiene (OH) procedures
Use clean water
Wear protective gear (patient and clinician)

31
Q

What can we do to prevent transmission before the pt sits down?

A

OH measures such as brushing teeth and use of an antiseptic mouthrinse

32
Q

Use of a rubber dam, ______ suction, ______ instrumentation, ______ of dust and dirt, use clean distilled ______, and protective wear for the ______ and ______ are ways to ______ the transmission

A 
High-volume
Manual
Removal
Water
Clinician
Patient
Interrupt

Dental Hygiene 1 (Costley) (1 decks)

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