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What federal agency enforces workplace safety regulations, including infection control in healthcare settings?
OSHA
What is the main directive of OSHA?
Protection of employees
What is a key document in OSHA that impacts infection prevention & control in dentistry?
Bloodborne Pathogens Standard
What is the federal facility that develops infection-control guidelines for healthcare settings?
CDC (Centers for Diseases Control & Prevention)
What is a key document in CDC that impacts infection prevention & control in dentistry?
CDC Guidelines for Infection Control in Dental Healthcare Settings
What federal agency charged with the approval and oversight of the use and disposal of hazardous materials?
EPA (Environmental Protection Agency)
What does the EPA regulate?
medical and chemical waste
What key document in the EPA impacts prevention and control in dentistry?
Hospital antimicrobial disinfectant registrations
What is an agency in the US Department of Health and Human Services was established to help assure safe and healthful working conditions by providing research, information, education, and training in the field of occupational safety and health?
NIOSH (National Institute for Occupational Safety and Health)
What are the hierarchy of controls?
1. Elimination
2. Substitution
3. Engineering Controls
4. Administrative Controls
5. PPE
What is a dental membership association comprised of individual clinicians, group practices, educators, researchers, consultants, trainers, compliance directors, policymakers, and industry reps who advocate for the safe and infection-free delivery of oral healthcare?
OSAP and NOW CALLED ADS (Association for Dental Safety)
What agency regulates the manufacturing and labeling of medical devices such as: gloves, masks, sterilizers, ultrasonic cleaners, dental instruments, and protective eyewear?
FDA (Food and Drug Administration)
What is regulated waste?
Infectious waste that requires special handling, neutralization, and disposal
*sharps
*tissue and extracted teeth
*blood items
What is nonregulated waste?
waste that is generated, including all disposable items
*gloves
*saliva ejectors
*cups
What are the routes of diseases-organism transmission?
Direct and Indirect contact, droplets, airborne microorganisms (aerosol), fecal-oral transmission
What contact is mode of disease transmission requiring person-to-person body contact with blood, oral fluids, or other patient materials?
Direct contact
What contact is spread of disease agents through fomites (objects or surfaces)
*cuts or punctures with contaminated sharp objects
Indirect contact
What is an example of cuts or punctures with contaminated sharp objects and entrance through nonintact skin as a result of touching contaminated instruments, surfaces, or other items
Indirect objects
What are some conditions for disease-organism transmission?
-a pathogenic organism of sufficient virulence and in adequate numbers to cause disease
-a reservoir or source that allows the pathogen to survive & multiply
-a mode of transmission from the source to the
-host one who is not immune
Standard Precautions
The infection prevention and control practices by which healthcare personnel follow the same protocols for ALL patients, regardless of infectious status or health history
What do Standard Precautions apply to?
Blood
All body fluids, secretions and excretions except sweat & tears
Nonintact skin
Mucous membranes
PPE
Designed to protect the oral health care worker from exposure to bloodbone and other pathogens to the skin, clothing, eyes mouth, and other mucous membranes
what PPE incldues
eye and face protection
masks
protective clothing
gloves
What are level 1 masks?
lowest barrier performance; ideal for procedures where low amounts of fluid, spray, and/or aerosols are produced
What are level 2 masks?
idea for procedures where moderate to light amounts of fluid, spray, and/or aerosols are produced
What are level 3 masks?
highest barrier performance, ideal for procedures where heavy to moderate amounts of fluid, spray and/or aerosols are produced
What is an N95 mask for?
maximum filtration; indicated for use when treating patients with airborne diseases such as TB, Influenza, and COVID
What gloves are used when handling contaminated sharps to reduce risk of accidental puncture injury and provide greater protecting during the handling of disinfectants?
heavy-duty utility gloves
What are most medical examination gloves made of now?
nitrile rubber not latex
Purpose of PPE and Sequence
-minimize exposure to spatter, biological contaminants that are greater than 50 um in diameter may be visible
-minimize exposure to aerosol, invisible biologic contaminants less than 50 um in diameter
reduce direct contact
Sequence for donning
protective clothing, mask, eyewear, and then gloves
how often should you change your gloves
In between patients
medical examination gloves
provide little protection against sharps injuries
*What is the most important behavior in the prevention of disease transmission?*
hand hygiene
For routine dental procedures, wash hands with either plain or antimicrobial soap for how long?
20 seconds
after initial clense with hand washing what is acceptable when no visuble soil appears
alcohol based hand rub
What are agents used to destroy or inhibit the growth of microorganisms?
disinfectants
What are the levels of disinfectants?
-High (destroys all microorganisms, glutaraldehyde)
-Intermediate (destroys vegetative bacteria, most fungi and viruses TUBERCULOCIDAL, iodophors, phenolics)
-Low (destroys vegetative bacteria, NOT tuberculocidal, detergents)
What are some chemical disinfectants for surface disinfection?
-Chlorines
-Iodophors
-Synthetic phenolics
Dual or synergized quaternaries
how often should you change clinical barriers
In between patients
Housekeeping surfaces
floors, walls, and sinks less likely to transmit disease
clinical contact surfaces
Surfaces that become contaminated from spray or droplets of oral fluids or by touching with gloved hands during the procedure.
What are some qualities of an ideal disinfectant?
-broad spectrum
-fast acting
-does NOT have an offensive odor
-provides residual effect (substantivity)
What does the CDC not recommend for compouds as surface disinfectants
alcohol, household bleach, or early generation quaternary ammonium
What is the destruction or removal of all living organisms including highly resistant bacterial spores
sterilization
What ensures destruction of all organisms transferred to an item use on a patient before reuse of item on subdequent patient
sterilization process
What method of sterilization is used on 250 degrees for 15-30 minutes, economical and efficient, and can cause corrosion of non-stainless steel & dulling of instruments?
Steam Autoclave
What method of sterilization is 320 degrees for 1-2 hours, NO corrosion, but has a long exposure time and high heat for both types
Dry Heat
What method of sterilization is 270 degrees for 20 minutes, time efficient & decreased corrosion, and can cause a slight odor, damage to plastic, and must use special solutions?
Chemical Vapor
What are critical instruments?
instruments used to penetrate soft oral tissue or bone
*periodontal probes
*explorers
*scaling and root planning intruments
*surgical intruments
What are semi-critical instruments?
do not penetrate soft tissue or bone, but contact mucous membranes or nonintact skin
*mouth mirrors
*handpieces
*impression trays
*radiographic film holders
*oral photogrphy retractors
What are noncritical intruments?
contact intact skin
*BP cuff
*X-ray head
*light handles
*intrument tays
*countertops
sterilization must be heat sterilized between each use or discarded if disposable
critical
sterilization or high level disinfection (sterilize between each use)
Semi-critical
Low to intermediate level disinfection
Noncritical
What are items containing heat-sensitive chemicals that change color when exposed to certain temperatures to assess conditions during the sterilization process?
chemical indicators (autoclave tape)
what allows operators to determine the presence of certain necessary parameters such as heat or steam
Chemical indicators
*What are the highest level of sterility assurance?*
biologic indicators (BIs)
what are spore tests for verification of sterility
biologic indicators
What are commonly used BIs
Geobacillus stearothermophilus and Bacillus pumilus
Nonsurgical procedures water strandards
use systems that provide output treatment water that meets drinking water strandards
Surgical procedures drinking water standards
only sterile solutions such as coolants and irrigants in sn appropiate delivery device such as a sterile bulb syringe, sterlie tubing that bypasses dental unit waterlines or sterile single use devirs
*__________ CFU/mL of heterotrophic water bacteria* for nonsurgical procedures
Less than or equal to <500
Health history should include
Demographic information, vital signs, physical characteristics, social history, medical history, pharmacological, history, and chief complaint/concern
social history should include
tobacco use, alcohol consumption, and use of recreational drugs
Demographic information
patients name
address
telephone numbers
e-mail address
DOB
sex
Ethnicity
maritial status
occupation
patients current physician info (name, address, number, email info)
BMI Scale
Underweight
Less than 18.5
BMI Scale Normal
18.5-24.9
BMI Scale Overweight
25- 29.9
BMI Scale Obesity
greater than or equal to 30
What is the pulse range?
Tachycardia:
Bradycardia:
60-100 BPM
Tachy: > 100 BPM
Brady: < 60 BPM
What is the normal temperature range?
96.8-100.4 F
Pulse WNL
60-100 bpm
Pulse tachycardia
>100 bpm
Pulse braycardia
<60 bpm
What is blood pressure
Pressure that is exerted on the walls of the blood vessels
What is the top number on blood pressure called
systolic
what is the bottom number on blood pressure called
diastolic
What does systolic pressure measure
This number is measured during the heart's contraction phase, when the heart is pumping blood out into the body
What does diastolic pressure measure?
measures the pressure in your arteries when your heart is at rest between beats.
Normal BP
<120 mm Hg AND < 80 mm Hg
Elevated BP
120-129 mm Hg AND <80 mm Hg
Stage 1 Hypertension
130-139 mm Hg OR 80-89 mm Hg
Stage 2 Hypertension
equal to or greater than 140 OR greater than or equal to 90
Hypertensive urgency
>180 and/or > 120
Hypertensive emergency
>180 + target organ damage and/or >129 + target organ damage
Many of these patients are
noncompliant with antihypertensive therapy and do not have clinical or
laboratory evidence of new or
worsening target organ damage; reinstitute or intensify antihypertensive drug therapy, and treat anxiety as applicable
Hypertensive
Urgency
Admit patient to an intensive care unit for continuous monitoring of BP and
parenteral administration of an
organ damage
appropriate agent in those with new/progressive or worsening target organ damage (see tables 19 and 20 in the 2017 Hypertension Guideline)
Hypertensive
Emergency
Highlights of Nov. 2017 BP Guidelines
No prehypertension (now called elevated BP)
More hypertension patients because the definition of hypertension is lower (130/80)
Many in Stage 1 can be controlled with lifestyle modifications
Emphasis on CVD
BP lowering medication
What is the ASA?
American Society of Anesthesiologists
is Risk assessed even when anesthesia is not part of the planned treatment
Yes
A patient classified as ______ should not receive elective dental treatment
ASA IV or greater
Only palliative care is recommended for a patient with a
ASA V status
A patient classified as ASA ____ or greater should NOT receive elective dental treatment.
Only _________ care is recommended for a patient with an ASA V status.
IV
palliative
TX modifications for ASA 1
No modifications indicated
TX modifications for ASA 2
Medical consultation when indicated, possible sedative techniques, pain control
What ASA is a normal, healthy patient little or no dental anxiety
ASA I
TX modifications for ASA 3
Exercise caution, allow patient to rest, monitor patient closely, sedative techniques, pain control
TX modifications for ASA 4
Postpone elective dental care, treat emergency dental care in hospital setting
TX modifications for ASA 5
Palliative treatment for pain management only