Pulp–dentin tissue healing response: A discussion of current biomedical approaches

Dishant Shah, Tyler Lynd, Donald Ho, Jun Chen, Jeremy Vines, Hwi Dong Jung, Ji Hun Kim, Ping Zhang, Hui Wu, Ho Wook Jun, Kyounga Cheon

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


Dental pulp tissue exposed to mechanical trauma or cariogenic process results in root canal and/or periapical infections, and conventionally treated with root canal procedures. The more recent regenerative endodontic procedure intends to achieve effective root canal disinfection and adequate pulp–dentin tissue regeneration; however, numerous limitations are reported. Because tooth is composed of vital soft pulp enclosed by the mineralized hard tissue in a highly organized structure, complete pulp–dentin tissue regeneration has been challenging to achieve. In consideration of the limitations and unique dental anatomy, it is important to understand the healing and repair processes through inflammatory-proliferative-remodeling phase transformations of pulp–dentin tissue. Upon cause by infectious and mechanical stimuli, the innate defense mechanism is initiated by resident pulp cells including immune cells through chemical signaling. After the expansion of infection and damage to resident pulp–dentin cells, consequent chemical signaling induces pluripotent mesenchymal stem cells (MSCs) to migrate to the injury site to perform the tissue regeneration process. Additionally, innovative biomaterials are necessary to facilitate the immune response and pulp–dentin tissue regeneration roles of MSCs. This review highlights current approaches of pulp–dentin tissue healing process and suggests potential biomedical perspective of the pulp–dentin tissue regeneration.

Original languageEnglish (US)
Article number434
JournalJournal of Clinical Medicine
Issue number2
StatePublished - Feb 2020
Externally publishedYes


  • Biomaterials
  • Chemical Signaling
  • Dentin Tissue
  • Immune Cells
  • Inflammatory Response
  • Mesenchymal Stem Cells
  • Nitric Oxide
  • Pulp
  • Tissue Regeneration

ASJC Scopus subject areas

  • Medicine(all)


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