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Researchers disrupt bacterial signals to steer dental plaque toward health
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Scientists at the University of Minnesota have shown that disrupting how oral bacteria communicate can shift dental plaque toward communities associated with better oral health, potentially opening the door to new ways of preventing gum disease without wiping out beneficial microbes.
英国教育分析机构Quacquarelli Symonds（QS）周三发布2026年度学科排名，香港大学266个学科中53%下滑，为三年最大降幅。数据科学和人工智能等学科排名下滑，但香港大学牙医学院仍居全球第二，香港演艺学院表演艺术重返第十，香港教育大学教育学科首次进入前十。
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Scientists have developed a new teeth-whitening powder that activates with electric toothbrush vibrations to remove stains while repairing enamel. Lab tests showed up to 50% whitening on stained teeth, and animal studies indicated improved oral microbiome balance. The findings appear in ACS Nano.
Research published October 22, 2025, in Neurology® Open Access reports that older adults with gum disease had more white matter hyperintensities—a marker of tissue damage—than peers without gum disease, even after accounting for other risks.
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People with both cavities and gum disease had an 86% higher risk of ischemic stroke than those with healthy mouths, according to research published October 22, 2025, in Neurology Open Access. The two-decade study of 5,986 adults linked poor oral health to higher rates of major cardiovascular events, while emphasizing the findings show association, not causation.