We have surveyed through the world wide web researches published between 1997 and 1998 in scientific journals integrated to the MEDLINE database, kept by the United States National Library of Medicine. We collected 150 studies from different countries, which were performed by 337 researchers and were published in 71 journals. These studies were read and classified by several characteristics. We ... [Show full abstract] emphasize the strong incorporation of Social Sciences in studies related to the Epidemiology of oral health and in the planning and evaluation of services. We also emphasize the presence of Social Psychology in studies addressing professional orientation, biostatistical application to Preventive Dentistry and the increasing trend of studies applied to Bioethics and special patients. We recommend Brazilian researchers to direct new studies to journals incorporated to the MEDLINE database, as well to proceed their bibliographical recovering by using this resource.