Regenerating Teeth…With Lasers


A Harvard-led team just successfully used low-powered lasers to activate stem cells and stimulate the growth of teeth in rats and human dental tissue in a lab.

The first step for researchers was to drill holes in two rat molars, exposing the interior of the tooth underneath.


They exposed dentin, which is the harder-than-bone but softer-than-enamel tissue that teeth are mostly made of. Then, they lit up the dentin using a low-powered laser, trying to get the stem cells there to kick into action and start producing more dentin to replace the damaged area.

When tested with human dental stem cells, the effects were similar. The lasers activated the stem cells, which can become many different types of cells, and specifically caused them to start forming dentin.

Top image an exposed rat molar that received the treatment causing it to start to regrow.
Bottom image showing structure of tooth cells as the regenerative process begins.

Quoted text via Business Insider.

This entry was posted in Gadgets, Science by Heretic. Bookmark the permalink.

About Heretic

I design video games for a living, write fiction, political theory and poetry for personal amusement, and train regularly in Western European 16th century swordwork. On frequent occasion I have been known to hunt for and explore abandoned graveyards, train tunnels and other interesting places wherever I may find them, but there is absolutely no truth to the rumor that I am preparing to set off a zombie apocalypse. Nothing that will stand up in court, at least. I use paranthesis with distressing frequency, have a deep passion for history, anthropology and sociological theory, and really, really, really hate mayonnaise. But I wash my hands after the writing. Promise.

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