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:
AFM is used to study tooth surfaces (enamel and cementum) in order to compare thepattern of particle distribution and demineralization process in the two dissimilar tooth hard tissues.Our approach is focusing mainly on the qualitative observations of tooth surface morphology andquantitatively measuring the early stages of mineral loss. The native enamel presented globularparticles tightly packed. After polishing the aprismatic layer, the particles observed were relativelylarger and more organized than ones in the outmost enamel surface. The cementum had small grainsarranged in some degree of ordered packing with varying crystallite orientations. After different timetreatment with citric acid solution, all the sample surfaces became more irregular and had the deepergrooves. The maximum mineral loss was greatest for the cementum sample and lowest for the nativeenamel. The demineralization difference between the enamel and cementum shows the structure andcomponent play important roles in the morphological changes of demineralization. Thesedemonstrate that the microstructure and demineralized difference between enamel and cementumobtained with AFM are complementary to the usual SEM images and TEM data. AFM is suitable formeasuring early stages of tooth surface demineralization
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.733.pdf
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