These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [Biomimetics of crystal texture in dental enamel prism by self-assembly oligopeptide].
    Author: Wang L, Bai W, Feng HL, Jia XR.
    Journal: Beijing Da Xue Xue Bao Yi Xue Ban; 2007 Feb 18; 39(1):46-9. PubMed ID: 17304326.
    Abstract:
    OBJECTIVE: To evaluate the possibility of self-assembly oligopeptide(T2) for dental enamel biomimetics, especially for the prism's crystal texture since it could prompt calcium phosphate precipitated in gel carrier. METHODS: SEM (Scanning electron microscope) and TEM (Transmission electron microscope) were used to observe the morphologic presentation and ED(Electron diffraction) to crystal texture comparing with the human molar enamel powder. RESULTS: (a) Flake-like and needle-like octacalcium phosphate precipitated in the gel carrier with self-assemble oligopeptide(T2). They transformed into rod-like hydroxyapatite crystals gradually in the following 2-4 weeks. (b) The rod-like hydroxyapatite may arrange or grow into bundles which are similar to the human enamel prisms in both appearance and size. (c) The rod-like hydroxyapatite showed polycrystal while the enamel prisms showed monocrystal under examination of ED. CONCLUSION: The self-assemble oligopeptide(T2) could regulate the speed of nucleation and crystallization of hydroxyapatite in morphology and crystalline size. Thus, the self-assembly oligopeptide and the gel carrier mineralization system could be primarily applied in biomimetic use for the crystallization of hydroxyapatite in dental prism in vitro.
    [Abstract] [Full Text] [Related] [New Search]