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Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice
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Signaling Molecules and Pulp Regeneration.

Gottfried Schmalz1, Matthias Widbiller2, Kerstin M Galler2

  • 1Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany; Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Bern, Switzerland.

Journal of Endodontics
|August 29, 2017
PubMed
Summary
This summary is machine-generated.

Signaling molecules are key to tissue engineering for dentin repair. Utilizing dentin-derived growth factors, like those from EDTA-treated dentin, offers a promising, locally sourced approach for dental pulp regeneration.

Keywords:
Dental pulp tissue engineeringdentin matrix proteinsgrowth factorspulp regenerationscaffold

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Dental Pulp Biology

Background:

  • Signaling molecules regulate tissue regeneration, crucial for dental pulp engineering.
  • Animal studies show growth factors (TGF-β, VEGF, BDNF, FGF) can induce reparative dentin (osteodentin).
  • Current single-molecule or recombinant growth factor preparations lack regulatory approval for dental applications.

Purpose of the Study:

  • To explore the potential of tissue-derived growth factors for dental pulp tissue engineering.
  • To investigate the use of dentin-derived signaling molecules for promoting dentin regeneration.
  • To evaluate methods for mobilizing and utilizing these endogenous factors.

Main Methods:

  • Exploitation of tissue-derived growth factors, including platelet-rich plasma and platelet-rich fibrin.
  • Mobilization of signaling molecules from dentin using demineralizing agents like EDTA.
  • Ultrasonic activation to release signaling molecules from EDTA-pretreated dentin into saline, minimizing cytotoxicity.

Main Results:

  • Dentin-derived growth factors offer a promising alternative to single-molecule approaches.
  • EDTA treatment conditions dentin, promoting pulp stem cell differentiation into odontoblast-like cells.
  • Mobilized signaling molecules enhance cell growth, attachment, and protect dentin from resorption.
  • Ultrasonic activation can yield cytotoxic-free preparations of dentin-derived factors.

Conclusions:

  • Tissue-derived growth factors, particularly from dentin, represent a viable strategy for dental pulp regeneration.
  • These endogenous factors are locally available and potentially more effective for inducing signaling in dental pulp.
  • Further characterization and standardization of procedures are necessary for clinical translation.