Influence of the magnetic field on microorganisms in the oral cavity

Abstract

Since the beginning of their lives, all living organisms are exposed to the influence of geomagnetic fields. Objectives: With respect to the positive effects that magnetic fields have on human tissues, especially the bactericidal effect, this investigation aimed to assess their influence on the reduction of oral microorganisms.Material and Methods : In order to obtain adequate specimens of dental plaque deposit, microbes such as Streptococcus parasanguinis, Staphylococcus epidermidis, Rhodococcus equi and Candida albicans were isolated from the human mouth. To establish the intensity of microbial growth on the basis of the modified optical density (OD) of agar turbidimetry assay, microbial count and spectrophotometry were applied. The study was carried out with two microbial concentrations (1 and 10 CFU/ml) after periods of incubation of 24 and 48 h and using micromagnets.Results : A positive effect of the magnetic field, resulting in the reduction of dental plaque microbes in vitro, was found. In the first 24 hours of exposure to the magnetic field, the number of all isolated microbes was significantly reduced. The most potent influence of magnets and the most intensified reduction after 24 hours were evident in Candida albicans colonies. The decrease in the influence of magnets on microbes in vitro was also detected.Conclusions : Magnets reduce the number of microbes and might be recommended as a supplement in therapy for reduced periodontal tissues. This is important because periodontal tissues that are in good conditions provide prolonged support to the oral tissues under partial and supradental denture.

Effect of Magnetic Attachment Flux on Sub-Gingival Pigmented Bacteroides Melaninogenicus Count in Magnetically Retained Overdenture Wearers

“…The patients were instructed to use moist brush without any dentifrices in cleaning abutments to eliminate an expected effect of dentifrices on oral microflora as reported by Haffajee AD et al 2001 (11) and Brkovic et al 2015 (8) . Patients were also motivated to avoid usage of antibiotics minimum one week before bacterial samples collection as this could affect the crevicular bacterial flora Walker et al 1981 (38) .…”

“…Follow up period were formulated not to exceed one month after magnet fixation to avoid an expected effect of corrosive surrounding media on dental magnets as concluded by Chung C H, et al 2005 (10) Moreover, Boeckler et al 2009 (8) stated according to ISO 10271 that modern magnetic attachment showed metal ions dissolved in all corrosive medium specimen within few weeks of use.…”

“…-The patients were asked to come back shortly to correct any complaint after the denture insertion and motivated for cleaning fitting surface of denture under running water after meals while abutments to be cleaned gently with a new moist soft dental brush three times daily without using tooth pastes (Haffajee et al 2001 (11) and Brkovic et al 2015 (8) ) . Patients were also instructed to avoid antibiotic medication/or mouth wash one week before bacteriologic samples collection in follow up periods (Williams.…”

Effects of combined magnetic fields on bacteria Rhodospirillum rubrum VKM B‐1621

“…The most attractive area of application of possible magnetic effects is medicine because some bacteria are infection agents, pathogens. For this reason, numerous investigations focused on inhibition of pathogens by different types of applied magnetic fields [Segatore et al, ; Ahmed et al, ; Fijałkowski et al, ; Bayır et al, ; Brkovic et al, ]. These data describe applications of strong static magnetic fields or strong alternating magnetic fields.…”

Adhesion of gram‐negative rod‐shaped bacteria on 1D nano‐ripple glass pattern in weak magnetic fields

“…Microorganisms have adapted to fluctuations in the Earth's magnetic field over a period of time. However, the response of bacteria to other external magnetic field influences is still being investigated (Brkovic, Postic, & Ilic, 2015;Kohno, Yamazaki, Kimura, & Wada, 2000). In space, humans encounter a different environment of radiation and electromagnetic forces.…”