KMID : 0355420110350030273
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Journal of Korean Academy of Oral Health 2011 Volume.35 No. 3 p.273 ~ p.280
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Remineralization effect of bamboo salt and sodium fluoride solutions on artificial enamel Lesion by Micro-computed tomography
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Oh Han-Na
Hong Suk-Jin Choi Choong-Ho
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Abstract
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Objectives: The purpose of this investigation was to evaluate the remineralization effect of NaF, Bamboo salt and NaF+Bamboo salt solutions on bovine enamel formed incipient artificial enamel caries by microcomputed tomography (micro CT).
Methods: Experimental solutions were 2% sodium fluoride solution (2% NaF group), 3% bamboo salt solution (3% BS group) and a mixed solution of 2% sodium fluoride solution and 3% bamboo salt solution (2% NaF+3% BS group). Specimens were prepared from extracted bovine teeth and were divided into 3 groups of 12 specimens each by randomized blocks according to the Vickers hardness number (VHN). The specimens¡¯ surfaces were then divided equally into three parts to observe the sound enamel area, the incipient enamel carious area and the remineralized enamel area. Only one-third of each specimen surface was coated with nail varnish and this was exposed to a lactate carbopol buffer system for 72 hours. One-half of the demineralized enamel area was then coated with nail varnish. For remineralization, the specimens were immersed in each experimental solution for 24 hours. After the solution treatment, the VHN and density were measured using a microhardness tester and a micro CT.
Results: All experimental solutions showed remineralization effects (p£¼0.05). The differences of VHN after the experimental solution treatment were statistically significant among the 3 groups (p£¼0.01). The differences of density after the experimental solution treatment were statistically significant among the 3 groups (p£¼0.01). The density difference values of the groups were 0.36¡¾0.10 in the 2% NaF group, 0.24¡¾0.06 in the 3% BS group, and 0.35¡¾0.60 in the 2% NaF+3% BS group.
Conclusions: The results of the difference of density showed that micro CT could evaluate the remineralization effects of experimental solutions. Thus, it is suggested that a micro CT could be useful for the evaluation of the remineralization effect on incipient carious lesions.
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KEYWORD
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bamboo salt, microcomputed tomography, remineralization
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