What is the main purpose of hand hygiene?

• A. Remove or destroy harmful microorganisms to prevent transmission
• B. Optional for trained staff
• C. Good for skin health only
• D. Only required if hands are visibly dirty

Answer: (A)

Hand hygiene is about removing or destroying harmful microorganisms on the hands to prevent their transmission to patients, staff, and the dental environment. In a dental setting, pathogens can be carried on hands even when they don’t look dirty, so performing hand hygiene at key moments—before touching a patient, after procedures, after contact with body fluids, and after touching the patient’s surroundings—helps break the chain of infection. Alcohol-based hand rubs are typically used for routine cleaning, while soap and water are needed when hands are visibly dirty or after certain exposures. This makes the primary purpose clear: to remove or destroy microorganisms to prevent transmission. It isn’t optional for trained staff, it isn’t only about skin health, and it isn’t only required if hands are visibly dirty.