Hiv concern in dentist offices?

Little to none: Hiv is a weak virus and does not survive outside of the body. If an office comes even close to following infection control procedures HIV is of no concern. You would have to have someone trying to spread the virus on purpose or being grossly careless (resuing tools without cleaning them) to really get it in a dental office.

Minimal Risk: Health care in general follows "universal precaution" which became widely accepted in part due to the HIV scare. A very large benefit is that other viruses & bacteria that are much easier to spread and harder to kill, are also being stopped from being spread by us. Our infection control standards are really an over kill for HIV in an effort to combat the likes of hepatitis.

Not to worry: Medical and dental facilities adhere to "universal precautions", meaning that they assume anyone can be ill, and therefore practice strict infection control to prevent cross contamination. It keeps you, the staff, and everyone else safe.