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. 2023 Jun 29;11:1164811. doi: 10.3389/fcell.2023.1164811

FIGURE 5.

FIGURE 5

Schematic diagram of the strategies for enamel regeneration. Suitable sources of dental epithelial cells for enamel regeneration to repair enamel damage are expanded in the culture to generate a sufficient number of cells using either 2D or 3D culture systems. Dental epithelial cells were differentiated upon modulation of the signaling pathway in the 2D monolayer culture system. Dental epithelial cells derived from hiPSCs were cultured in a suspension to form spheroids. In this study, ameloblast organoid derived from hiPSCs (hAO) were differentiated upon Noggin–BMP modulation using the 3D culture system after 40 days and recombined with the mouse dental mesenchyme.