Summary in 1 minute
Researchers at the Indian Institute of Science have developed magnetic nanorobots approximately 400 nanometers in size capable of penetrating deep into dentinal tubules to treat dentinal hypersensitivity.
Guided by external magnetic fields, the nanorobots self-assemble inside the tubules forming a bioceramic material that seals them and restores the natural barrier of the tooth. In experimental studies on extracted human teeth and animal models, they penetrated several hundred micrometers into the dentinal tubules and eliminated dental sensitivity.
The technology is still in the experimental stage but represents one of the most advanced applications of nanotechnology and robotics in dentistry to date.
Source: Peddi S. et al. — Advanced Science, 2025 — Read study