The effects of bamboo salt solution on remineralization of artificial caries-like lesions

ABSTRACTObjectives : The aim of this investigation was to evaluate the remineraliz ation effect of Bamboo salt andNaF+Bamboo salt solutions on bovine enamel formed incipient art ificial enamel caries by microcomputed tomog-raphy (micro CT). Methods : Experimental solutions were distilled water(negative control) , 2% sodium fluoride solution (2% NaFgroup), 3% bamboo salt solution (3% BS group) and the solution mixed 2% sodium fluoride solution and 3% bam-boo salt solution (2% NaF+3% BS group). Specimens were prepared from extracted bovine teeth and divided into 4groups of 10 specimens each by randomized blocks according to d ensity. Then the specimens surface were dividedequally into three parts to observe sound enamel area, incipien t enamel carious area and remineralized enamelarea. Only one-third of specimen surface was coated with nail v arnish and these were exposed to a lactate car-bopol buffer system for 72 hours. Then one-half of the deminera lized enamel area was coated with nail varnish.The specimens were carried out under pH cycling model for 14 da ys as follows; samples were immersed in eachexperimental solution for 2 mins 3 times per day, demineralized for 4 hours and in mixed saliva for the remaininghours. After pH cycling, density was measured using micro CT. Results : All experimental groups showed remineralization effects excep t for negative control group(p<0.05). Thedifferences of density after experimental solution treatment we re statistically significant difference among 4groups (p<0.01). The density difference values of groups were 0 .04±0.01 in negative control group, 0.19±0.01 in2% NaF group, 0.14±0.01 in 3% BS group, and 0.21±0.01 in 2% NaF+3% BS group. Conclusions : The bamboo salt solution showed remineralization effects on in cipient artificial enamel caries and thesolution mixed sodium fluoride solution and bamboo salt solutio n showed more remineralization effects than thebamboo salt solution. Thus, it is suggested that bamboo salt ca n be used as remineralization agent in incipientenamel caries lesion.(J Korean Soc Dent Hygiene 2012;12(2):335-343)Keywords: Bamboo salt, Microcomputed tomography, Remineralization색인: 미세전산화단층촬영술, 죽염, 재광화