A sterile field is an area that is free from live bacteria or other microorganisms. Asepsis prevents this area from coming into contact with microorganisms. It is the dental nurse's role to use aseptic technique to create a sterile area before implant placement. This is to prevent infection that may lead to implant failure.
There is no agreed standard method for how this should be achieved—but the days of completely covering patients’ faces and swabbing them with iodine have been generally replaced with an emphasis on a ‘sterile/clean’ technique (Scharf and Tarnow, 1993) (Figure 1).
Figure 1.Dental scrub nurse assisting dentist during implant placement in a sterile area
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