Which precautions should be taken when handling impression materials and dental cements to minimize exposure?

• A. Wear gloves and ignore ventilation.
• B. Store materials only in locked cabinets.
• C. Wear gloves, work in a well-ventilated area, follow MSDS, avoid skin contact, check expiry, dispose of waste per guidelines.
• D. Mix materials near the patient without PPE.

Answer: (C)