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Nano-Odontology: Nanostructured Assemblies for Endodontic Regeneration

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The vitality of the pulp is so fundamental to the functional life of the tooth that new strategies are required to avoid the removal of the whole pulp following irreversible pulpitis and to regenerate the lost endodontic tissues. Nano-odontology would provide suitable solutions for pulp tissue conservative and regenerative approaches. In our group, we have shown that when covalently coupled to Poly-Glutamic Acid (PGA) the incorporation of an anti-inflammatory hormone (melanocortin, α-MSH) into the multilayered films Poly-L-Lysine (PLL)/PGA increases the anti-inflammatory reaction of pulp fibroblasts and macrophages stimulated by LPS (Lipo-Polysaccharides). Recently, usual linear PLL polymers have been chemically grafted for making new Dendrigraft polymers (DGLG4) whose higher branching ratios can give useful properties. The objective is to use nanostructured assemblies containing DGLG4 and PGA-α-MSH to design a new nanomaterial. These nanostructured assemblies (DGLG4-PGA-α-MSH) n constitute a thick reservoir of the anti-inflammatory peptide and promote adhesion and proliferation of pulp fibroblast on the biomaterial surface. These nanostructured films could be adapted for an endodontic regeneration application to target pulp connective tissue regeneration. Firstly, the crucial reduction of inflammation could be helpful by using PGA-α-MSH and secondly the initiation of the regeneration of the connective tissue will be promoted by the whole nanostructured film of which allows pulp cells colonisation.
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Document Type: Research Article

Publication date: June 1, 2011

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  • Journal of Biomedical Nanotechnology (JBN) is a peer-reviewed multidisciplinary journal providing broad coverage in all research areas focused on the applications of nanotechnology in medicine, drug delivery systems, infectious disease, biomedical sciences, biotechnology, and all other related fields of life sciences.
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