Natural compound from vegetables shows promise for future toothpaste to fight dental plaque
Scientists have discovered a natural compound that could dramatically improve oral health by destroying dental plaque and reducing the risk of cavities. The compound, 3,3′-Diindolylmethane (DIM), commonly found in cruciferous vegetables such as broccoli and kale, has been shown to reduce biofilm formation by Streptococcus mutans — the primary bacterium responsible for tooth decay — by an astonishing 92 percent.
The findings, published in the journal Antibiotics, highlight DIM’s powerful anti-biofilm and anti-virulence properties, making it a potential game-changer in oral health care.
What is dental plaque, why does it matter?
Dental plaque is a sticky film of bacteria that builds up on teeth and can lead to tooth decay and gum disease. S. mutans plays a central role in this process by producing acids that erode tooth enamel. Current oral hygiene products such as fluoride toothpaste and antibacterial mouthwashes target bacteria but often come with limitations.
The study’s authors noted:
“The anti-biofilm and anti-virulence properties of DIM against S. mutans in an oral setting provide evidence for its usefulness in reducing biofilm formation and potentially preventing cavities.”
Potential for toothpaste and mouthwash
Lead researcher Prof. Ariel Kushmaro, from the Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, explained that DIM has low toxicity, making it safe for oral applications. “The molecule could be added to toothpastes and mouthwashes to greatly improve dental hygiene,” he said.
The study was conducted with contributions from researchers at Sichuan University and the National University of Singapore, further strengthening the credibility of the findings.
A new frontier in dental health
Previous studies already established DIM’s anti-cancer and antimicrobial properties, but this new research expands its potential use in everyday oral care. Experts believe incorporating DIM into consumer products could reduce global rates of cavities, one of the most common chronic diseases affecting both children and adults.
If further trials confirm its safety and effectiveness, the next generation of toothpastes, mouthwashes, and dental treatments may include this naturally occurring compound, bridging the gap between nutrition and preventive dentistry.
Stay informed. Stay ahead.
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