RESUMENÉste estudio analizó el potencial antimicrobiano in vitro de 7 dentífricos conteniendo fitoterápicos sobre bacterias orales recuperadas de la saliva y cepas patrón de S. mutans ATCC25175, S. sanguis ATCC 10556 y L. casei ATCC 4646. Fueron obtenidas soluciones concentradas de los dentífricos evaluados y de controles mezclándose 3 gramos de cada uno con 10 mL de agua deionozada estéril, seguido de centrifugación; los sobrenadantes resultantes fueron diluidos en proporciones de 1:2 hasta 1:32. Fue realizado un test de difusión en ágar, colocando cepas patrón y la saliva total estimulada de 10 pacientes saludables. Discos empapados con las suspensiones de los dentífricos fueron dispuestos en las placas, las cuales fueron incubadas en anaerobiosis por 48 horas, siendo los aros de inhibición medidos en milímetros. Los resultados obtenidos fueron analizados mediante ANOVA y llevando en consideración el control positivo se constató que, solamente las soluciones puras de los dentífricos presentaron capacidad antimicrobiana contra cepas patrón, equivalente a la del dentífrico con triclosan, excepto el Gessy Cristal ® . Además, los dentífricos diluidos a 1:2 presentaron acción antimicrobiana contra las bacterias orales recuperadas de la saliva, excepto el Parodontax ® .Palabras clave: dentífricos; fitoterápicos; acción antimicrobiana. SUMMARYThe aim of this study was to evaluate and compare in vitro antimicrobial potential of 7 dentifrices containing phytotherapics agents oral bacteria obtained from saliva and standard strains of S. mutans ATCC 25175, S. sanguis ATCC 10556, and L. casei ATCC 4646. For this purpose, concentrated test and control solutions were obtained by mixing 3 grams of each in 10 ml of sterile deionized water which was submitted to centrifugation, the sublimate obtained was further dissolved in a ratio of 1:2 to 1:32. A diffusion test in agar was carried out by sowing the standard strain and stimulated total saliva. Disks soaked in a dentifrices solution and then placed on culture disks were then incubated in anarobiosis for 48 hours. Inhibition halos were then measured. Results obtained from ANOVA statistical analysis. However, comparison in the presence of a positive control, revealed that against standard strains, the pure solution of the dentifrices had antimicrobial activity, with the exception of Gessy Cristal ® . Against oral bacteria recovered from saliva, diluted dentifrices to 1:2 showed the same activity, excepting Parodontax ®
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