Researchers at the University of Southern California may be one step closer to helping patients repair lost tooth enamel.
Tooth enamel is the hard outer layer that protects your teeth from decay, sensitivity, and damage. Unlike bone, enamel is a nonliving tissue, which means the body cannot naturally regrow it once it has been lost.
For years, this has frustrated both dentists and patients. Once enamel wears away due to decay, acid erosion, or grinding, it cannot fully return on its own.
A Breakthrough in Enamel Research
Now, researchers at USC have identified an important enzyme involved in enamel formation called metalloproteinase-20, or MMP-20.
This enzyme plays a major role during the early development of teeth. Scientists discovered that MMP-20 helps break down proteins called amelogenins, which guide the organized growth of enamel crystals.
In simpler terms, MMP-20 may help create the structure needed for strong, healthy enamel to form properly.
Could Enamel One Day Regrow?
Researchers are now studying whether MMP-20 can work alongside other enzymes to encourage enamel-producing cells to rebuild damaged areas of teeth.
To test this idea, the team experimented with a special hydrogel on human molars that had artificial decay. The gel had already shown promise in repairing early tooth decay by creating an enamel-like mineral layer.
The results were encouraging. Compared to other remineralization methods, the hydrogel produced a more organized crystal structure that more closely resembled natural enamel.
What Happens Next?
The next step is to improve the hydrogel by adding MMP-20 in hopes of creating an even stronger enamel-like seal on damaged teeth.
Although this research is still in development, it could eventually change the way dentists treat enamel loss and early tooth decay.
Protecting Your Enamel Still Matters
While scientists continue exploring future enamel-regrowth treatments, protecting your natural enamel remains extremely important. Daily brushing, flossing, regular dental visits, and limiting sugary or acidic foods can all help keep enamel strong for years to come.
If you have tooth sensitivity or concerns about enamel wear, contact our office to learn about treatments that can help protect your smile.
