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Dental Research Journal، جلد ۱۴، شماره ۱، صفحات ۰-۰
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عنوان انگلیسی Infl uence of sodium chloride content in electrolyte solution on electrochemical impedance measurements of human dentin
چکیده انگلیسی مقاله Background: The aim of this study was to investigate the infl uence of sodium chloride (NaCl) content in electrolyte solution on electrochemical impedance measurements of human dentin by employing electrochemical impedance spectroscopy. Materials and Methods: Dentin samples were prepared from extracted molars. Electrochemical impedance measurements were carried out over a wide frequency range (0.01Hz-10MHz). After measurements, samples were characterized using scanning electron microscopy. Results: Electrochemical impedance measurements showed that the mean values of dentin electrical resistance were 4284, 2062, 1336, 53 and 48kΩ at different NaCl contents in electrolyte solution. One-way ANOVA test of mean values of dentin electrical resistance revealed a signifi cant difference (P < 0.0001) as a function of NaCl content in electrolyte solution. Comparing electrical resistance values of dentin samples at 0.05% w/v and 0.9% w/v concentrations were found to be signifi cantly different (P < 0.05 at 95% confi dence level). Scanning electron microscopy revealed structure of dentin sample with intertubular dentin matrix and distribution of patent dentinal tubules. Conclusion: This in vitro study indicated, through electrochemical impedance spectroscopy measurements, that electrical resistance of dentin was affected by the concentration of NaCl in electrolyte solution. It is clear from the current study that NaCl concentration in electrolyte solution has a marked infl uence on dentin electrical resistance. Therefore, this baseline data need to be considered in any future study on dental samples. Key Words:electric impedance, spectroscopy,dentin,electrical, resistance,Scanning Electron Microscopies,sodium chloride
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نویسندگان مقاله عزیزه eldarrat | aziza eldarrat


alec high | alec high


girish کله | girish kale


نشانی اینترنتی http://drj.mui.ac.ir/index.php/drj/article/view/1856
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زبان مقاله منتشر شده en
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