ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The process of dental caries is dynamic and continuous, with periods of de- andremineralization of the tooth structure occurring over time. When the remineralization potential issuperior to demineralization, the caries process can be stopped and early caries lesions can recover.Moreover, the remineralization potential will be increased if active components are added to adentifrice. Therefore, the aim of this study was to re-evaluate the remineralizaton potential of adentifrice containing nano-sized carbonated apatite using pH cycling, which simulates the oralenvironment. Artificial incipient caries was induced on bovine tooth specimens, which were treatedwith 4 dentifrices containing several concentrations of nano carbonated apatites with pH cycling. Theremineralization effect was evaluated at each step by measuring the Vickers Hardness Number, andobtaining SEM and CLSM images of the enamel surface. The micro hardness of the enamel surfaceincreased after the pH cycling treatment of the dentifrices. The dentifrice containing 5% n-CAPsshowed the highest level of remineralization followed by 0%, 15% and 30%. One-way ANOVAindicated a significant difference in remineralization between the dentifrice containing 5% and 30%n-CAPs. SEM and CLSM also demonstrated observable differences in each step. From this study, thefluoride dentifrice containing 5% n-CAPs was effective in remineralizing an artificial incipient carieslesion. In conclusion, the dentifrice containing 5% nano carbonated apatites and 25% silica was themost effective in remineralizing early caries lesion
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.291.pdf
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