Final answer:
OSHA mandates that dental care providers must wear PPE when there is contact with blood and saliva, and it should only be worn in the clinical area. Both statements in the question are true.
Step-by-step explanation:
By OSHA mandate, dental care providers are required to wear appropriate personal protective equipment (PPE) during patient care when contact with blood and saliva is likely. This precaution is to protect healthcare workers from infections and to prevent the cross-contamination of infectious agents. OSHA guidelines also state that PPE should only be used in the clinical area where exposure to blood or other potentially infectious materials (OPIM) can occur, ensuring that contamination does not spread to other areas. Therefore, the correct answer to the question is C: both the first and second statements are true.