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Dental Assisting National Board Exam: Infection Control

Study of Microorganisms


Capable of Producing Disease


Capable of Causing Serious Disease


Bacteria that Grow in Oxygen


Bacteria that Grow in the Absence of Oxygen


Organisms that grow in the presence or absence of Oxygen

Faculative Anaerobes

Single-Celled Microscopic Animal without a Rigid Cell Wall


Hidden Virus During Latency Period


Infectious agents that do not contain DNA or RNA


Most Resistant form of Bacteria


Yeast Infection of the Oral Mucosa

Oral Candidiasis

Father of Microbiology

Louis Pasteur

First Person to Record Microorganisms as being responsible for hospital-acquired infections

Joseph Lister

Name of the Staining Process for Separating Bacteria

Gram Test

Herpes Simplex II

Genital Herpes

A Persistent Infection in which Symptoms come and go

Latent Infection

Symptoms that are quite Severe and Short in Duration


Standard Designed to Protect Employees against occupational exposure to blood-borne pathogens

OSHA Blood borne Pathogen Standard

Touching or Contact with a Patient's Blood or Saliva

Direct Contact

Touching or Contact with a Contaminated Surface

Indirect Contact

Enters the mucosal surfaces of the eyes, nose or mouth

Droplet Infection

Exposure through skin such as, needle sticks, cuts and human bites


Standard of Care designed to Protect healthcare providers from pathogens

Standard Precautions

Protective clothing, masks, gloves, and eye-wear to protect employees

Personal Protective Equipment

Waste that Presents Danger to Humans or the Environment

Hazardous Waste

Waste Capable of Transmitting Infectious Disease

Infectious Waste

Needles, scalpel blades, orthodontic wires, and Endodontic instruments are considered


Waste that may contain body fluids such as gloves and patient napkins

Contaminated Waste

Immunity Present at Birth

Inherited Immunity

Immunity that Develops during a person's Lifetime

Acquired Immunity

Immunity that results when a person contracts a disease and recovers from it

Naturally Acquired Immunity

Immunity that occurs as a result of Vaccination

Artificially Acquired Immunity

Protective Eyewear must have

Side Shields

What type of gloves are worn to open drawers during a dental procedure


Another Term for Infectious Waste is

Regulated Waste

Fluid-Impervious material that is used to cover surfaces

Surface Barrier

Surfaces not directly touched but often touched by contaminated instruments

Transfer Surfaces

Removal of Bioburden before disinfection


Agent Capable of Inactivating Mycobacterium Tuberculosis


Disinfectant capable of killing a wide range of microbes


High-Level Disinfectant or Sterilant


EPA-Registered intermediate-level disinfectant with broad spectrum disinfecting action

Synthetic Phenol Compound

EPA-Registered intermediate-level hospital disinfectant


Disinfectant which destroys TB, viruses, fungi, and vegetative bacteria - used for disinfecting dental operatories

Intermediate-level Disinfectant

Disinfectant which destroys certain viruses and fungi, used for general housekeeping (walls, floors)

Low-level Disinfectant

Which Regulatory Agency Requires the use of Surface Disinfection


Why Must Surfaces be Precleaned

Remove Bioburden

Where are Antiseptics used


Which Agency Regulates Disinfectants


Name of Disinfectant that can leave a reddish or yellowish stain


Sodium Hypochlorite


Not an effective Surface Disinfectant


Complete Destruction of all living Microorganisms


Method of Sterilization by use of Steam under Pressure


Strips known as Spore Tests, contain bacterial spores to determine whether sterilizer is working

Biologic Indicators

Method of Sterilization by use of hot formaldehyde vapors under pressure

Chemical Vapor Sterilizer

Instruments that come into contact with oral tissues but do not penetrate bone

Semi-critical Instruments

Instruments that come into contact with in-tact skin only

Non-critical Instruments

Method of Sterilization by use of heated air

Dry Heat

Tapes, Strips or Tabs that change color when they reach a certain temperature

Multiparameter Indicators

Device that loosens and removes debris with the use of sound waves traveling through liquid

Ultrasonic Cleanser

Method of Precleaning instruments that is the LEAST desirable

Hand Scrubbing

Instruments should be packaged for sterilization to

Maintain Sterility

Best way to ensure sterilization has occurred

Biologic Indicator

When can you use 'flash' sterilization

When Instruments will be used right away

Major advantage of Chemical Vapor Sterilization

Will not rust instruments

Regulatory Agency concerned with Regulation of Sterilization Equipment


Non-Regulatory Agency that issues recommendations on health and safety


Professional Organization for Dentists


Regulatory Agency that enforces regulations that pertain to employee safety


Resource for safety and infection prevention info. in Dentistry


Federal Agency responsible for conducting research and making recommendations for prevention of work-related disease and injury


Regulatory Agency that deals with Environmental or Public Safety


A Form that Provides Health and Safety Info. Regarding Materials that Contain Chemicals


Repeated Exposure over a Long Period

Chronic Exposure

High Level of Exposure over a Short Period of Time

Acute Exposure

Waste that contains chemicals that could pose risk

Hazardous Waste

How Should Chemicals be stored

Cool, dry, dark place

Slime-Producing bacterial communities that may also harbor fungi, algae and protozoa


Bacteria Floating in Water

Planktonic Bacteria

How often should micro-filters in waterlines be changed


According to CDC what kind of water should be used for Surgical Procedures

Sterile Water

A Substance that inhibits the growth of bacteria, often used for handwashing.


The absence of Pathogens, or disease-causing microorganisms. Used to describe the prevention of Infection.


Conditions Present for Infection to Occur (3)

1. Susceptible Host 2. Sufficient Pathogen (in strength or number) 3. Portal of Entry

Needlestick Injury

Parental Exposure, Occupational Exposure

Shapes of Bacteria (3)

Spherical (Cocci), Rod (Bacilli), Spiral (Spirochetes)

Which PPE is removed first


Autoclave Steam temp/PSI

250 Degrees Fahrenheit, 15-30 PSI

Purpose of Holding Solution

Prevent the Drying of Blood and debris on instruments

Ultrasonic Cleanser solution should be changed


Process which kills disease-causing microorganisms, but not necessarily all forms of life


Spore of Bacillus atrophaeus used to monitor

Dry Heat

The best time to clean and disinfect dental prosthesis or impression

Immediately after removal from patient's mouth

Scrap Amalgam should be collected and stored in

A Designated, dry, airtight container (May include Neutralizer)

All Containers holding Potentially Infectious Materials should be

Labeled with a Biohazard Sticker

Treating all Patients as if they could be Potentially Infectious

Universal Precautions

How many hours must instruments be submerged in Glutaraldehyde in order to achieve Sterilization

10 Hours

When should Dental Handpieces be Sterilized

After Each Use

A Liquid Soap used for Hand scrubbing may include

Iodine Surgical Scrub, Chlorohexadine Soap, Hexachlorophene Soap, Antimicrobial Soap etc.

Dental Mask Filtration


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