bacteria

The Future of Oral Health: Hacking Bacterial “Chatter” to Save Your Smile

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Imagine if, instead of using harsh mouthwashes that kill all the bacteria in your mouth—both good and bad—you could simply “mute” the conversations that lead to disease. Groundbreaking new research from the University of Minnesota, published in November 2025, suggests that we are closer to this reality than ever before. Scientists have discovered a way to “hack” the communication system of oral bacteria to prevent plaque buildup and stop gum disease before it starts. Quorum Sensing: How Bacteria “Talk” Your mouth is home to over 700 different species of bacteria. To survive and organize, they use a process called quorum sensing. Think of it as a constant stream of chemical “text messages” sent through molecules called AHLs (N-acyl homoserine lactones). When these messages are flowing, bacteria know when to band together, form sticky plaque, and invite dangerous, disease-causing species to … Read more

Microscopic Robots Could Revolutionize Stopping Infections

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Its possible one day that tiny robots one day can swim through your bloodstream, delivering medication directly to infected cells or removing harmful bacteria. This is the future of medicine, and it’s being made possible by microrobotics. Microrobots are micrometer-sized robots that have the potential to revolutionize healthcare. They can be used for a variety of purposes, including: Researchers at the University of Pennsylvania propose using microrobots to deliver medication and remove biofilms more effectively. Microrobots can be powered intrinsically or extrinsically. Microrobots are still in the early stages of development, but they have the potential to transform healthcare. These microrobots may be used to target infections stuck in areas, such as between the teeth. The technology may reduce antimicrobial resistance. Image by Thor Deichmann from Pixabay Microrobots also offer a new way to collect microbial samples that could be used to diagnose other diseases. Microrobotics relies on … Read more

Antibiotic resistance: what should dentists know

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An interesting article titled “Antibiotic resistance: The silent pandemia” appears in the International Dental Journal on January 12 2023 written by Angel-Orión Salgad Peralvo and et. al. The article discusses a call to action for dentists worldwide to cut back on their antibiotic prescribing habits arguing that 66% of antiobitics prescibed is not warranted. In the article the authors mention that dentists prescribe 10% of all antibiotics in the world. However, the way they see it, antibiotics being overly prescribed can contribute to the worldwide development of antimicrobial resistance. Antibitoics are used in dentistry for preventive purposes and to avoid systemic bacteraemia in patients at risk or to prevent possible bacterial contamination during surgery. Yet the resistance problem increases medical costs and increases mortality. Therefore they feel that dentists should change the way they prescribe antiobitics as the resistance problem … Read more

Antimicrobial Gel To Improve Root Canal Procedures

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The American Association of Endodontists estimates that more than 15 million root canals are done each year. During the procedure, the tooth’s pulp and nerve are removed before the tooth is cleaned and sealed. In some cases bacteria, viruses, or yeasts contaminate the tooth which leads to additional follow up dental work having to be performed such as an additional root canal. Researchers at the Indiana University School of Dentistry have developed an injectable antimicrobial gel that could disinfect a tooth during a root canal procedure. The gel has advantages over traditional medications used as antibacterial agents, including calcium hydroxide. The gel offers extended and significantly longer residual antibacterial properties. The gel is biocompatible and contains a low concentration of antimicrobial elements. The researchers feel that creating an antimicrobial space is important during clinical regenerative endodontic procedures. The gel provides sustained antimicrobial properties even when it is … Read more

Dental Material that Kills Bacteria and Resists Biofilm Growth

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Researchers from the University of Pennsylvania have developed a dental material tethered with an antimicrobial compound that can kill bacteria and resist biofilm growth. The material is also effective with minimal toxicity to the surrounding tissue, as it contains a low dose of the antimicrobial agent that kills only the bacteria that crosses it’s path. The researchers were motivated to develop a new dental material because the current composite materials to perform restorative procedures, such as filling cavities, are vulnerable to the growth of plaque, the biofilm that leads to tooth decay. The researchers had two goals in mind when developing the dental biomaterial: 1) kill pathogenic microbes effectively, and 2) withstand severe mechanical stress. The newly developed material is composed of a resin embedded with the antibacterial agent imidazolium. Unlike some traditional biomaterials that slowly release a drug, this material is non-leachable … Read more