I admit I have been quite cavalier about placing a standard consumer monitor in the treatment areas. This company, ExorVision, linked below provides monitors that are sealed to meet stricter patient treatment area standards. They are available through Henry Schein, Patterson and Benco.
Per the National Electrical Code, the dental office is classified as a “Patient Care Area,” and since liquid is present, it is also classified as a “Wet Location.” The electrical code is stricter for these special conditions. Hygiene is also an OSHA concern in these areas. A regular PC monitor is designed for the office environment where the code requirements are less stringent. The ExorVision LCD monitor, on the other hand, has been designed specifically for the dental office where patient safety and operatory hygiene are central issues.
via ExorVision – FAQ.