In vitro evaluation of the antimicrobial potential of five different types of fluorine and chlorhexidine varnish

In the context of promoting health, there are effective methods of preventing the disease carie, among them are the chemotherapeutic agents fluorine and clorexidina. The objective, in this study, was to evaluate the in vitro antimicrobial potential of four fluoride varnishes and one of veneer of clorexidina. From samples of infected dentin, 30 deciduous molars were grown on BHI and sown in four means of cultivation in which were placed discs of filter paper with the varnishes tested. Among the tested varnishes, the Cervitec® presented more bactericidal activity and bacteriostatic, while the fluorine Protector® presented the lowest antimicrobial action. In this study, it is suggested that the most effective method in preventing carie is the combination of educational guidance methods towards oral hygiene and the application of fluorine varnishes and clorexidina, for they have generated optimistic results in the maintenance of oral health. Key word: Chlorhexidine; Fluorine; Microbiology. Avaliacao in vitro do potencial antimicrobiano de cinco tipos diferentes de vernizes de fluor e clorexidina In vitro evaluation of the antimicrobial potential of five different types of fluorine and chlorhexidine varnish Katia Lumi Tanikawa-Vergilio1; Elaine Marcilio Santos2; Carolina Cardoso Guedes3; Lara Jansiski Motta4; Sandra Kalil Bussadori5 1 Professora de Cariologia, Periodontia e Microbiologia – Uninove 2 Professora de Odontopediatria – Universidade de Mogi das Cruzes 3 Professora de Cariologia e Prevencao em Odontologia – Universidade Braz Cubas 4 Professora de Radiologia – Universidade Metropolitana de Santos. 5 Professora do Mestrado em Ciencias da Reabilitacao – Uninove EnDEREcO pARA CORRESpOnDenCiA: Sao Paulo, SP [Brasil] E-mail: katialumi@gmail.com Recebido em 10 dez. 2007 / aprovado em 5 mar. 2008