Abstract
It is known that water is a vital to life. The mandatory fluoridation, it is an effective method in preventing tooth decay. Compete point out that Brazil has the second largest fluoridation system of public water supplies. When entering in the dental field, it is necessary to pay attention to water quality and when it comes to pollution, the water becomes even more important because the dental equipment are in constant contact with aerosols brought by the turbine high-speed, and thus can transmit various diseases patients, such as cold, pneumonia, tuberculosis, AIDS, hepatitis B, hepatitis C, among others. The droplets eliminated during dental procedures, transmit bacteria often from the mouth of patients, from the hands of dentists and / or assistants, but also the instruments and equipment, such as aerosol, which makes the dental office a setting highly contaminated.