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OBJECTIVE Italy, together with Spain, is second only to France in the total number of AIDS cases in Europe, with over 16,800 as of March 1993. The purpose of this study was to evaluate knowledge, attitudes, and behavior concerning AIDS and infection control among Italian dentists. METHODS A questionnaire was mailed to 1,000 dentists randomly selected from the Italian Dental and Maxillo-Facial Association's register of dentists. RESULTS Of the 715 dentists responding, 70.7 percent of dentists knew all the main risk groups able to transmit the infection and that semen is a biologic fluid potentially contaminated by HIV virus. This knowledge was greater if the number of patients per week was not higher than 55 and if the dentist had had a previous contact with an HIV-seropositive patient. Only a few (21.1%) knew all the oral manifestations of AIDS. Over 65 percent of the dentists indicated that they would treat HIV-seropositive patients (71.9%) or those with AIDS (66.8%). Dentists were more willing to care for an HIV-seropositive patient if they were involved in specialties with high blood contact, if they had a previous contact with an HIV patient, as the average number of patients per week increased, and if they did not consider saliva as a possible route of transmission of HIV. A small percentage of dentists who had the opportunity to treat patients at risk for AIDS (12.1%) or HIV seropositive (9.4%) refused to treat them. Willingness to treat was the most significant predictor of actual treatment of an infected patient. Only 24.4 percent routinely used all barrier techniques (gloves, masks, and protective eyewear). Predictors of routine use of all barrier techniques were specialties with high blood contact, considering saliva a possible route of transmission of HIV infection, average number of patients per week fewer than 40, and number of years of practice. CONCLUSIONS Educational efforts for improving knowledge and finding and implementing ways to motivate dentists to the correct and routine use of infection control procedures are needed.
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