From the very beginning of life, living organisms were exposed to the influence of geoelectric and geomagnetic fields, with established balance with this respect. Development of civilization has been distorted balance and harmony, imposing the extreme need for magnetism. Respecting positive effects of magnetic field to tissues, especially 'bactericide' effect, this investigation was conducted on the aim to assess the influence of magnetic field to oral microbes. Materials and method. This investigation was carried to in vitro. To obtain adequate samples of deposits or specimens of dental plaque, were from certain microbes which were isolated from human mouth. Microbes isolated from samples were Streptococcus parasanguis, Staphylococcus epidermidis, Rodococcus equi and Candida albicans. Turbidimetry array was applied for investigation of this kind. The method of spectrophotometry was applied, to obtain optical density (OD) value and to establish indirectly a growth of intensity of sowed microbe's stains on the basis of modified OD of agar. Investigation was carried on two level of density of microbes of 1 CFU/ml as well as of 10 CFU/ml after 24h period and 48h period of incubation of microbes. Results. Positive effect of magnetic field upon dental plaque of bacteria reduction in vitro was recognized. At the baseline-initial 24 hours period of measurement of exposition to magnetic field, the count of all isolated microbes has been significantly reduced, in the both of agar of increased density as well as of agar with reduced OD. Over the time, the decrement of influence of magnets versus microbes in vitro has been detected. Conclusion. Count of this influence of the magnet to microbes is of extreme importance in parodontology. This way, the positive influence of magnet to supporting tissues and quality and durability of overdenture was confirmed. .
