在见到新患者之前; 在手套前后; 接触受污染的物体或表面后; 在进食之前; 在使用浴室后。 • Dental staff who have open cuts must cover the wound with a waterproof plaster or Band Aid, to prevent microorganisms entering the body • Artificial nails are not allowed as they harbour bacteria and have potential to puncture the protective gloves • Some examples of infections could be Lockjaw better known as Tetanus, Hepatitis C, Hepatitis B or HIV.