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[The development of initial enamel caries--a phenomenon of interfacial reactions]
1Poliklinik für Konservierende Stomatologie, Karl-Marx-Universität, Leipzig, DDR.
Abstract:
The investigation deals with earliest chemical changes in outermost enamel surfaces during initial caries development. After in vitro demineralization of enamel samples in acidulated hydroxyethylcellulose solution (pH = 5.1) for periods between 1 and 288 h the Ca/P molar ratios were determined in depths of 0.04 micron using the Rutherford Backscattering spectroscopy. The measured Ca/P ratios oscillate around the initial value. This behaviour is interpreted as a combined de/remineralization process.