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  • Title: [Study of biomimetic apatite formation on dentine surface].
    Author: Nikolaenko SA, Lohbauer U, Zipperle M, Dasch W, Petschelt A, Frankenberger R.
    Journal: Stomatologiia (Mosk); 2007; 86(6):20-5. PubMed ID: 18163097.
    Abstract:
    The aim of this study was investigation of the opportunity of biomimetic growth of apatite on a dentine surface at various methods of its processing. Artificial blood human plasma--simulated body fluid (SBF)--was used as a source of ions. According to the scanning electronic microscope (SEM) and confocal laser scanning microscope (CLSM) and energy dispersive X-ray analysis (EDX) they have revealed the growth of crystals of calcium--deficient apatite. The structure of the formed apatite layer differed depending on a kind of processing of a dentine surface. After acid etching the globules of the apatite are located chaotically and the part of a dentine surface remains free. The removal of the collagen fibres by NaClO promotes uniform, controllable growth of crystals, forming a monolithic layer. The hypermineralisated areas of a tooth create the best conditions for growth. The transformation hydroxyl apatite in a superficial dentine layer can be caused by increasing of pressure at preparing with diamond bur. The growth of crystals of brushite in the smear layer is possible at a storage in water at 37 degrees capital ES, Cyrillic. The crystals have lamellar form and are well integrated in a dentin surface.
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