Functional tooth regenerative therapy: tooth tissue regeneration and whole-tooth replacement.

Area of Science:

• Biomedical Engineering
• Regenerative Medicine
• Oral Biology

Background:

• Irreversible dental issues like caries and periodontal disease compromise oral health.
• Current treatments are limited, necessitating novel regenerative approaches.
• Stem cells in oral tissues show potential for tooth tissue regeneration.

Purpose of the Study:

• To review recent advancements in tooth regenerative therapy.
• To explore novel methods for bioengineering functional teeth.
• To discuss the potential of whole-tooth replacement for restoring dental function.

Main Methods:

• Utilizing stem cells and cell-activating cytokines from oral tissues.
• Employing a novel three-dimensional cell-manipulation technique: the organ germ method.
• Mimicking natural organogenesis through epithelial-mesenchymal cell compartmentalization.

Main Results:

• Bioengineered tooth germs can generate structurally correct teeth in vitro.
• Transplanted bioengineered teeth successfully erupt and integrate into the oral cavity.
• Generated bioengineered teeth exhibit normal physiological functions, including mastication and sensory perception.

Conclusions:

• The organ germ method shows promise for recapitulating organogenesis and bioengineering teeth.
• Regenerative therapy holds significant potential for whole-tooth replacement and full recovery of dental function.
• Further research into bioengineered teeth could revolutionize restorative dentistry.