Third Teeth The evidence record
T2

Dental epithelial organoids

Academic laboratories (e.g. Hemeryck et al., KU Leuven / UHasselt) · component · Animal result

Status

Human dental epithelial organoids recreate enamel-forming developmental tissue. A powerful model of cell behavior; the work sits at the organoid/model boundary, not at a replacement tooth. A 2026 study by Patni et al. reports that a soluble Notch agonist matures human ameloblast organoids and produces enamel-like mineral under the mouse kidney capsule; a 2026 protocol by Nakashima et al. induces PITX2-positive embryonic oral epithelium from human iPSCs. A 2025 study by Hasan et al. reports that a biomimetic elastin-like recombinamer matrix nucleates enamel-like mineral on acid-etched human enamel and dentine ex vivo, restoring stiffness, hardness, and wear resistance.

What would change this assessment

Organoid-derived enamel tissue of native thickness and orientation, integrated in a living jaw.

Tier history

  • 2022-02-26 T2 Human-tooth epithelial organoids established with a stemness phenotype and differentiation potential, including in vivo assessment; a developmental model, not a replacement tooth.

Sources on file

  1. Hemeryck L, Hermans F, Chappell J, et al. (2022). Organoids from human tooth showing epithelial stemness phenotype and differentiation potential. Cellular and Molecular Life Sciences 79(3):153. doi:10.1007/s00018-022-04183-8
  2. Patni AP, Mout R, Alghadeer A, et al. (2026). Soluble Notch agonist enables human ameloblast maturation and enamel-like tissue formation for tooth regeneration. International Journal of Oral Science 18:67. doi:10.1038/s41368-026-00429-4
  3. Nakashima K, Tanaka J, Matsuno E, et al. (2026). Development of a high-efficiency induction system for embryonic oral epithelium from human pluripotent stem cells. Stem Cell Reports 21(3):103779. doi:10.1016/j.stemcr.2025.102781
  4. Hasan A, Chuvilin A, Van Teijlingen A, et al. (2025). Biomimetic supramolecular protein matrix restores structure and properties of human dental enamel. Nature Communications 16:9434. doi:10.1038/s41467-025-64982-y

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