Method of Preparing an Artificial Tooth Primordium in Vitro and Artificial Tooth Primordium Derived Therefrom

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This invention describes a method for creating artificial tooth primordium (the early stage of tooth development) in the laboratory. The method uses mesenchymal dental pulp cells (preferably from adult human donor teeth, such as wisdom teeth) cultured under non-adherent conditions so they form 3D cell aggregates that mimic natural tooth germs. Optionally, adding epithelial cells (like gingival keratinocytes) further enhances the development of these artificial tooth primordia. Notably, the method does not require embryonic stem cells or artificial scaffolds, making it suitable for patient-specific applications.

Use CasesContent extracted from patent full text and abstract with AI.

• Regeneration of lost or damaged teeth by transplanting artificial tooth primordia into the jaw, offering a potential natural alternative to dental implants.
• Development of pharmaceutical compositions for dental tissue repair, restoration, or replacement.
• In vitro models for research into tooth development, tooth regeneration, and dental diseases.
• Screening and testing of substances (e.g., drugs or biomolecules) that can influence tooth or dental tissue formation, for drug discovery and toxicology studies.
• Personalized or autologous transplants using a patient’s own cells to minimize immune rejection.

BenefitsContent extracted from patent full text and abstract with AI.

• Enables growth of tooth-like structures without using embryonic stem cells, reducing ethical concerns and regulatory hurdles.
• Allows use of the patient’s own dental pulp cells, reducing risk of immune rejection and improving treatment acceptance.
• Eliminates the need for artificial scaffolds or carriers, resulting in a more natural tissue structure.
• Potential for true integration with surrounding jawbone and periodontal tissues, mimicking the properties of real teeth.
• Can be adapted for scalable laboratory production and high-throughput research or drug screening.
• Offers new hope for regenerative dental medicine, moving toward biological replacements for lost teeth rather than synthetic implants.

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Patent Abstract

The present invention is directed to a method of preparing an artificial tooth primordium in vitro, comprising the steps: a) providing isolated mesenchymal dental pulp cells; and b) culturing the mesenchymal dental pulp cells under non-adherent conditions to form a cell aggregate representing an artificial tooth primordium; as well as to an artificial tooth primordium derived therefrom.