Infection Control, Sterilization and
Dental Laws for North Carolina
Dental Board Examination, 2026/27
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,All of the following are the employer's responsibility laundering of employee uniforms off site
according to OSHA except: 3 multiple choice options
A one-handed "scoop" technique is the preferred work True
practice control to recap the needle. 1 multiple choice option
What type of products are not intended for use with latex Petroleum-based products.
gloves due to their ability to break down the latex and 3 multiple choice options
compromise the effectiveness of the product?
following a report of an exposure incident at the dental the employer should provide the employee with a confidential medical evaluation
office, what does the employer need to do for the and follow up by a qualified physician.
exposed employee? 3 multiple choice options
After used instruments are transferred to the instrument Cleaning
processing area and sorted, what is the next step in the 3 multiple choice options
sterilization process?
To practice safe handling, dental workers must be sure to Use sharps containers as intended and not allow them to be overfilled
do which of the following? 3 multiple choice options
Surface disinfection can be done by an iodophor- Intermediate level
type cleaner. Which category is this? 3 multiple choice options
All of the following are examples of mechanical glutaraldehyde solution.
instrument cleaning except: 3 multiple choice options
Under the OSHA statutes, _______________ must be new and contract employees
informed and trained in safe handling of chemicals. 3 multiple choice options
Which of the following is the correct processing protocol Wiped off with a disinfectant and gauze and then bagged and placed in a heat
for dental handpieces? sterilization machine
3 multiple choice options
What is the term used for determining if sterilized Event-related packaging
instruments are still sterile before reuse? 3 multiple choice options
A patient has neglected to inform you of the development The patient needs an injection of epinephrine; call for EMS.
of a latex allergy. The patient begins to develop an 3 multiple choice options
anaphylactic reaction during dental treatment. What
should be done?
Which steps must be completed once a boil-water Unless otherwise directed by public officials, flush dental unit water lines for 1-5
advisory has been cancelled or lifted? minutes prior to use for patient care
3 multiple choice options
Which of the following is a causative factor in dental he presence of Streptococcus mutans in the mouth.
caries? 3 multiple choice options
How should the dental healthcare worker handle a It should be cleaned to remove any bioburden present, disinfected, rinsed, and
contaminated impression before it is sent out to the packaged.
dental laboratory? 3 multiple choice options
Each dental practice must have a(n) _______________ staff member
designated to maintain and keep the written hazard 3 multiple choice options
communication standard.
,When storing dental instruments, the dental healthcare Placing the sterile packs on shelves under the sink in the sterilization area.
worker must avoid which of the following? 3 multiple choice options
Which of the following protocols must be followed to aid They should be run for 20-30 seconds after each patient.
in the maintenance of the dental unit water lines? 3 multiple choice options
What is the name of the item used to prevent the patient Dental dam
from swallowing or aspirating dental debris during a 3 multiple choice options
procedure?
Operatory keyboards are best cleaned by what method? Disinfecting with wipes containing quaternary ammonia.
3 multiple choice options
Which of the following best applies to the use of single- They serve as a good substitute for items that are difficult to clean.
use or disposable devices? 3 multiple choice options
Which of the following safety measures should be The dental auxiliary should avoid looking directly at the light emitted from the
followed when working with the curing light during curing light.
procedures? 3 multiple choice options
According to the 2003 MMWR and NIOSH, which of the Follow standard precautions and use high filtration surgical masks and possibly
following is the advised protocol for a dental auxiliary to face shields.
follow when assisting chairside with lasers in order to 3 multiple choice options
avoid the spread of infectious diseases and cross-
contamination?
When is it necessary to activate the emergency action In the event of a fire at the dental office.
plan, written in the Hazard Communication Standard? 3 multiple choice options
In order for an infection to occur, 4 conditions must be Any available host
present. Which of the following does not accurately 3 multiple choice options
describe one of these conditions?
Which type of herpes virus is normally latent (does not Cytomegalovirus.
cause disease) unless the immune system is damaged? 3 multiple choice options
What is the proper way to proceed when a patient cannot Treatment can not be completed without the use of a rubber dam
tolerate the rubber dam placement due to anxiety issues 3 multiple choice options
during endodontic therapy?
What is one significant difference between contact and Contact dermatitis is caused by an immunologic response to latex use in the
irritant dermatitis? office
3 multiple choice options
The OSHA Hazard Communication Standard requires all Provides recommendations for what chemicals to be used in certain situations
of the following EXCEPT: 3 multiple choice options
Which type of sterilizer involves the use of a toxic gas? Ethylene oxide
3 multiple choice options
Kaposi's sarcoma is a cancer that causes which of the Red or purple patches of abnormal skin in the mouth or throat, which contain
following? cancer and blood cells
3 multiple choice options
What type of personal protective equipment (PPE) Long sleeved gown, gloves, surgical mask, or face shield
should be worn while assisting with a procedure that 3 multiple choice options
requires the use of a high-speed handpiece?
, When is biologic monitoring especially important and For any cycle with implantable instruments.
necessary? 3 multiple choice options
_________________ is the leading cause of death from Tuberculosis
infectious disease worldwide. 3 multiple choice options
What are the symptoms of nitrous oxide exposure? Difficulty breathing, headache, drowsiness
3 multiple choice options
Which of the following are found on the hands, are Resident skin flora
permanent residents of the skin, and can't be removed 3 multiple choice options
with any type of hand washing or scrubbing regimen?
When is the optimal time to receive a titer test to 1-2 months after the final dose
determine the presence of antibodies due to receiving 3 multiple choice options
the hepatitis B vaccine?
When a disinfectant claims to have a tuberculocidal time The disinfectant can remove all of the tuberculosis bacterium and any weaker
of 3 minutes, what does this mean? forms in 3 minutes.
3 multiple choice options
Which of the following is correct regarding the use of The dental healthcare worker should change his mask with every patient.
masks in the dental office? 3 multiple choice options
Why is hand washing necessary after gloves have been No gloves are completely impermeable and can have micro-tears.
removed? 3 multiple choice options
How should a noncritical item that is contaminated with The item should be cleaned and disinfected with an intermediate-level
blood be handled? disinfectant prior to its next use.
3 multiple choice options
The fire extinguishers in a dental practice are in They are checked and professionally serviced annually.
compliance if maintained by what method? 3 multiple choice options
Which of the following provides the best description An employer's requirement of identifying workers with the potential of
regarding what the OSHA exposure determination is? occupational exposure to blood.
3 multiple choice options
Which of the following would be the LEAST acceptable The quickest route out of the office
quality of an exit route in a dental office? 3 multiple choice options
At what temperature does a dry heat sterilizer work best, 320° F, 60-120 minutes.
and for how long is its typical cycle? 3 multiple choice options
Why is a mask put on before donning of gloves? Gloves may come in contact with hair and facial skin if they are put on first.
3 multiple choice options
Which of the following is not a chemical used in the Glutaraldehyde
unsaturated chemical vapor sterilization process? 3 multiple choice options
What is the best way to protect a patient from possible Use waterline treatments weekly
contaminants in dental unit water? 3 multiple choice options