Regulatory Notice
The following information does not constitute legal advice, and you should check with your state or your legal team before implementing anything based on information read on this site. Regulations change, interpretations vary, and your laboratory is responsible for confirming the current requirements that apply to its own work.
The Occupational Safety and Health Administration (OSHA) is responsible for ensuring that employees have a safe and healthy workplace. While dental laboratories are not patient treatment facilities, they expose technicians to chemical hazards, airborne dust, infectious materials, machinery, heat, and repetitive motion injuries. OSHA regulations are designed to reduce these risks through engineering controls, training, written procedures, and the use of personal protective equipment (PPE).
For most dental laboratories, OSHA compliance centers around four major areas:
Dental technicians routinely work with:
Without proper controls, these materials and processes can lead to:
OSHA regulations establish minimum standards to protect employees from these hazards.
The OSHA Hazard Communication Standard is often called the "Right to Know" law because employees have the right to understand the hazards of the chemicals they work with.
Every dental laboratory should maintain a written Hazard Communication Program that explains how hazardous chemicals are identified, labeled, stored, and communicated to employees.
A compliant laboratory should have:
Manufacturers provide an SDS for every hazardous chemical.
An SDS explains:
Every employee must know where SDS documents are located and be able to access them immediately during work hours.
Many common laboratory materials contain crystalline silica, including:
Grinding, trimming, or mixing these materials creates microscopic airborne dust that can reach deep into the lungs.
Long-term exposure may lead to:
Laboratories should reduce exposure using engineering controls such as:
When engineering controls cannot adequately reduce exposure, OSHA may require the use of an approved respiratory protection program and properly fitted respirators.
PPE serves as the final barrier between the technician and workplace hazards.
Common PPE used in dental laboratories includes:
Required whenever:
Impact-resistant safety glasses with side shields are the minimum standard.
Face shields provide additional protection during operations that generate flying debris or splashing chemicals.
Face shields supplement—but do not replace—safety glasses.
Respirators or approved dust masks may be necessary when working with:
A laboratory that requires respirators must also comply with OSHA's Respiratory Protection Standard, including medical evaluations, fit testing, and employee training.
Gloves protect against:
The correct glove material depends on the specific hazard.
Dental laboratories rarely treat patients directly, but they routinely receive items that have been in a patient's mouth.
These may include:
OSHA requires laboratories to use Standard Precautions, treating all incoming cases as potentially infectious.
Potential pathogens include:
Laboratories should:
OSHA places priority on eliminating hazards before relying on PPE.
Examples of engineering controls include:
These controls reduce hazards for every employee rather than relying solely on personal protective equipment.
OSHA requires employees to receive training appropriate to the hazards they encounter.
Training commonly includes:
Training should occur:
Dental laboratories should maintain documentation including:
Good documentation supports both employee safety and regulatory compliance.
An OSHA inspection may review:
Maintaining organized documentation and following established safety procedures helps demonstrate compliance.
OSHA Standard Industrial Classification (SIC) Manual – Dental Laboratories
https://www.osha.gov/sic-manual/8072
OSHA Dentistry Enforcement Resources
https://www.osha.gov/dentistry/enforcement
SafeLink Consulting – OSHA Compliance for Dental Laboratories
https://info.safelinkconsulting.com/osha-compliance-for-dental-lab
Note: This page provides a high-level overview of OSHA requirements for dental laboratories. It is intended as an educational reference and should not be considered legal or regulatory advice. Individual laboratories are responsible for complying with all applicable federal, state, and local workplace safety regulations.
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This resource is made possible by Russellville Dental Lab, a full-service dental laboratory in Russellville, Kentucky, serving clinicians across the USA for more than 70 years.