Scientists may have found a way to regrow tooth enamel using keratin from sheep’s wool. Learn what this breakthrough means for your smile and how to protect enamel now.
What’s New in Enamel Repair?
Happy September! ? With back-to-school routines kicking in and cozy sweaters coming out of storage, it feels fitting to share some smile news that’s… well, also about wool. Yes, wool.
Researchers in London have discovered a way to use keratin (a protein found in sheep’s wool) to help regrow tooth enamel. That’s a big deal, because enamel—the hard, outer layer of our teeth—is the only part of the body that doesn’t naturally repair itself once it’s damaged. Until now, dentists have only been able to patch decay with fillings, resins, or crowns.
But this new wool-derived material? When it mixes with saliva, it forms a crystal-like coating that actually attracts the minerals needed to rebuild enamel. Think of it like a natural shield—one that’s sustainable, non-toxic, and could replace some of the plastics used in dentistry today.
It’s not in toothpaste aisles yet (don’t go brushing with your sweater!. But in the next few years, this discovery could lead to gentler, greener treatments for cavities and early enamel wear. And if you know Dr. Messina, you know anything that makes our smiles and our planet a better place is right up her alley.
Why Enamel Loss Matters
Enamel loss is something we see every day in dentistry. It can happen from:
- Acidic foods and drinks
- Teeth grinding (especially at night)
- Brushing too hard
- Normal aging
Once enamel thins, teeth become sensitive, more prone to decay, and often look more yellow. That’s why prevention is so important—and why the idea of enamel restoration is so exciting. As Dr. Messina always says, a respect for the natural tooth structure is central to our practice.
How to Protect Your Enamel Right Now
While we wait for science to bring wool-keratin treatments to the dental chair, here are some tried-and-true ways to protect the enamel you already have:
- Use a soft toothbrush and gentle technique
- Limit acidic sips (sparkling water, soda, lemon water)
- Don’t brush right after acidic foods—wait 30 minutes
- Wear a nightguard if you grind your teeth
- Schedule regular checkups to catch early enamel wear before it gets worse
A Cozy Thought for Fall ?
We love when science surprises us with something unexpected—like sweaters helping smiles. It’s a reminder that innovation in dentistry is always moving forward, often in ways we’d never imagine.
So this September, while you’re pulling out your wool scarves, take a moment to also care for your smile’s natural shield: your enamel. One day soon, both may be keeping you warm and well. If you'd like to come see us, we'd love to have you! Our Louisville, Colorado doors are always open to help care for the oral and overall health of our community.
We write a blog post every month to keep our patients and our community updated on important dental topics, so be sure to check back here often! And don't forget: we love your questions! We welcome discussion of these blog topics or anything you're curious about. Our patient family is the best part of our practice, and we are grateful for you!