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A biocompatible decellularized pulp scaffold for regenerative endodontics.

M Matoug-Elwerfelli1, M S Duggal2, H Nazzal3

  • 1Division of Oral Biology, School of Dentistry, University of Leeds, Leeds, UK.

International Endodontic Journal
|December 3, 2017
PubMed
Summary

Researchers developed a decellularized dental pulp scaffold for regenerative endodontics. This biological extracellular matrix scaffold supports stem cell viability and tissue regeneration.

Keywords:
decellularizationdental pulpextracellular matriximmature nonvital teethregeneration

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Dental pulp tissue engineering requires suitable scaffolds.
  • Decellularization aims to remove cellular components while preserving extracellular matrix (ECM).
  • Regenerative endodontics seeks to restore pulp vitality and function.

Purpose of the Study:

  • To assess the feasibility of decellularizing entire human dental pulps using a mild protocol.
  • To develop a decellularized biological ECM scaffold for regenerative endodontic procedures.

Main Methods:

  • Decellularization of human dental pulps.
  • Histological, immunohistochemical, and scanning electron microscopy analyses.
  • DNA quantification, cytotoxicity assays, and human dental pulp stem cell (hDPSCs) seeding.

Main Results:

  • Acellular matrix with preserved native histoarchitecture and composition was achieved.
  • Decellularized scaffolds demonstrated no cytotoxicity and supported hDPSCs viability and attachment.
  • The scaffold supported cell growth and viability following recellularization.

Conclusions:

  • A mild decellularization protocol can yield a viable biological scaffold from dental pulp.
  • The decellularized scaffold preserves essential ECM components for tissue-specific regeneration.
  • This approach shows promise for regenerative endodontic applications.