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[Variations of cemento-enamel junction of human teeth. Literature review]

U Lehmann1, S Schmeisser

  • 1Zentrums für Zahn-, Mund- und Kieferheilkunde (Charité) der Humboldt-Universität zu Berlin.

Deutsche Stomatologie (Berlin, Germany : 1990)
|January 1, 1991
PubMed

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In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
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Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate resistance.