The effect of static magnetic field on some oral microorganisms (an in vitro study)

Al- Jubouri, Raja; A. Al- Barzenji, Hassan

	The effect of static magnetic field on some oral microorganisms (an in vitro study)
Journal of baghdad college of dentistry
Article 1, Volume 22, Issue 2, 2010, Pages 60-63
Authors
Raja Al- Jubouri; Hassan A. Al- Barzenji
Abstract
ABSTRACTBackground: Several studies were done on magnetic attachment which used for retention of overdentures andthese magnetic attachments fixed above the oral mucosa on dental implant or on precious met al root cap by castbonding or cementing, these magnetic attachment may have effect on oral microorganism. This in vitro studyinvestigated the effect of different static magnetic field strength on some oral microorganismMaterials and Methods: Oral swabs were taken from the lateral border of the tongue and buccal mucosas of thecheck from 10 students, growing culture were examined carefully and colony morphology was recorded. Gram stainand Lactophenol stain were used when suspected Fungi, isolated colonies were sub-cultured and these coloniesidentified by using different API systems, Streptococci mitis, Streptococci salivarius, Staph. aureus, Enterococci andCandida albicans identified and cultured and Then the effect of (50, 150,500,20,000 Gauss) static magnetic fieldstrength were investigated on growth rate of these microorganism. The values obtained in this study were subjectedto Analysis of Variance (ANOVA).Results: Indicated that static magnetic field had an inhibitory effect on the growth rate of Strep. mitis and Strep.salivarius when the magnetic field strength used greater than (150 Gauss) at both South and North poles statisticalanalysis shows significant differences with control group. While in Enterococci and Staph. aureus and Candidaalbicans it showed an inhibitory effect on growth rate at North Pole with increasing in field strength above (150Gauss) , while at South Pole it showed stimulatory effect on growth rate of these microorganisms with increasing fieldstrength, both Poles showed significant differences with controlled group. While at (50 Gauss) field strength theresults indicated no clear effect on culture growth rate for all microorganisms in the study.Conclusions: This study indicated that field strength of static magnetic greater than (50 Gauss) shows affect ongrowth rate of the oral microorganism which may affect the oral environment.Keyword:Static magnetic field, oral microorganism, growth rate. (J Bagh Coll Dentistry 2010;22(2):60-63).

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