Study links lower oral microbiome turnover to higher cavity risk in children with HIV exposure

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The mouth is the second most diverse microbial system in the human body after the gut—but researchers at Penn Dental Medicine say it behaves very differently when it comes to long-term health. In a study published July 16 in Microbiome, researchers compared the oral microbiomes of Nigerian children living with HIV, those exposed to the … Read more

From the field to fillings: CU’s Charlie Offerdahl retires due to concussions, dental school awaits

Photo of Colorado Buffaloes team members. (Courtesy of Colorado Buffaloes)

DENVER (AP) — Colorado coach Deion Sanders may be losing a tailback but gaining a future dentist. Charlie Offerdahl stood in front of his teammates and coaches on the first day of fall camp Tuesday and announced he’s retiring from football due to a history of concussions. He’s on track to graduate in December and … Read more

Alberta court eases college’s discipline for Edmonton dentist facing sexual assault charges

Colorado dentist poisons his wife

An Alberta dentist facing criminal sexual assault charges has received a partial reprieve from the province’s top court, which found his professional college acted “unreasonably harsh” when it cancelled his practice permit, the Edmonton Journal reported. Dr. Shouresh Charkhandeh, 43, was charged in 2024 with four counts of sexual assault and one count of threatening … Read more

AI shows promise in detecting early childhood cavities, study finds

AI

A review of 21 studies conducted between 2014 and 2024 suggests that artificial intelligence (AI), particularly deep learning (DL) algorithms, shows strong potential in detecting and predicting early childhood caries (ECC). Published July 26 in Nature, the study found that DL algorithms—models based on complex neural networks that mimic how the human brain detects patterns … Read more

Study finds tooth nerves are more than pain sensors — they’re protectors

Human tooth structure showing dental nerves. (iStock)

A new University of Michigan study has found that tooth nerves are more than just pain detectors — they also play a protective role that could have major implications for future dental treatments and innovations. “When we consider regenerating a tooth pulp, we need to bring back the nerves.” In a peer-reviewed paper published in … Read more

Study finds no strong link between diet and cavities in young children from low-income families

New study finds no clear link between sugary snacks and cavities in young children

While sweet drinks and snacks aren’t recommended for children, a new study has found no significant association between their consumption patterns and the development of early childhood caries (ECC) in low-income children under the age of two. Published July 13 in BMC Oral Health, the study followed 127 Medicaid-eligible children from birth at two university-affiliated … Read more

82-year-old pediatric dentist accused of slapping young patients awaits Halifax court ruling

Prosecutor says pediatric dentistry procedures decades ago were “not pretty” (iStock).

A Halifax judge is expected to rule Nov. 20 on whether retired pediatric dentist Dr. Errol Gaum, 82, is guilty of assaulting four former patients when they were children. The earliest allegation dates back to 1970. Gaum appeared in Halifax provincial court Monday for closing arguments in a trial that began in May. He originally … Read more

Timeline: Solo dental practice ownership continues to decline in Canada

In the 1960s, solo practice was the norm—one dentist owned and operated their own clinic.

As the number of practising dentists has grown, solo practice ownership in Canada has steadily declined. Recent surveys show only about one-third of dentists now operate solo practices, according to the Canadian Dental Association (CDA). More than half report working alongside two or more other dentists, the CDA added. The CDA also outlined the historical … Read more

ADA backs U.S. bill calling for evidence-based oral health research amid fluoride controversy

The ADA says that 80 years of community water fluoridation at optimal levels has proven to be safe and effective at reducing tooth decay to improve oral health.

The American Dental Association (ADA) announced its support Monday for new U.S. federal legislation requiring evidence-based research to guide oral health policy. “Recently, there has been a growing distrust of credible, time-tested, evidence-based science about the safety and need for water fluoridation programs,” said Dr. Brett Kessler, president of the ADA. The ADA also praised … Read more

Needle-free flu vaccine delivered by dental floss shows promise — in mice

In their experiment, the researchers flossed 50 mice with the floss laced with the vaccine every 2 weeks. (iStock)

Engineers have developed a novel method to deliver vaccines without needles — using dental floss. In a study published July 22 in Nature Biomedical Engineering, researchers showed that vaccine-laced floss can deliver therapeutics through the junctional epithelium, a thin, porous tissue where the gums attach to the teeth, also known as the base of the … Read more

Study: Childhood abuse increases risk of developing caries in children ages 7 to 10

“These findings reinforce the importance of early intervention—not just from a psychological standpoint, but also for children’s physical and oral health,” the authors stated.

Drawing data from 7,633 children in Bristol, England, a recently published study shows that childhood abuse can increase the risk of developing caries in children ages 7 to 10. “This knowledge can help dentists identify vulnerable children or families during routine dental visits,” the researchers wrote in their paper, published in the Journal of Dentistry. … Read more

University of Texas researchers training AI to predict dental composite performance

The team analyzed data from over 200 studies to assess 28 composite additives and 17 performance traits, including strength, shrinkage and fracture resistance.

Artificial intelligence is already reshaping diagnostics in dentistry, but researchers at UT Health San Antonio and the University of Texas at San Antonio (UTSA) are now exploring how AI could help evaluate and optimize dental composite materials. Their goal: to develop machine learning models that can accurately predict how commercially available dental composites—used in fillings … Read more

OrbiMed expands investment to $85 million in Swiss firm’s drill-free cavity treatment

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New York-based healthcare investment firm OrbiMed has invested a total of $85 million in Swiss company vVARDIS, known for its drill-free treatment for early tooth decay, the companies said in a recent statement. OrbiMed announced the closing of a $50 million funding round, adding to an initial $35 million investment made in February 2025. “After … Read more

Dental surgeon’s new geometric theory may solve 500-year-old Vitruvian Man mystery

Da Vinci’s Vitruvian Man encodes blueprint of human evolution, says London dental surgeon. (Photo courtesy of Rory Mac Sweeney)

Drawing on his interdisciplinary work in dental anatomy, geometry and human evolution, London-based dental surgeon Dr. Rory Mac Sweeney has proposed a new interpretation of the geometry behind Leonardo da Vinci’s Vitruvian Man. Historians and mathematicians have long debated the meaning of the famous sketch, including why da Vinci drew the man inside both a … Read more

Dana Carvey, Sheryl Crow and Ellen Latham to headline DS World Las Vegas 2025

Join DS World Las Vegas 2024 at Caesars Forum, September 26-28, for a fresh look at the trends and innovations reshaping healthcare and their business impact. (Photo: Dentsply Sirona)

Dentsply Sirona has confirmed three major entertainment names for its annual DS World Las Vegas event in 2025: Emmy-winning comedian Dana Carvey, Grammy-winning singer-songwriter Sheryl Crow and OrangeTheory Fitness co-founder Ellen Latham. Carvey will take the stage on Thursday, Sept. 25, at the MGM Grand for a night of comedy, followed by a live performance … Read more

After year-long gap, Inuvik closer to getting resident dentist, mayor says

A row of houses in the town of Inuvik, NWT, Canada

After more than a year without a dentist, Inuvik is now on track to welcome a resident dentist by late fall. During a recent council meeting, Mayor Peter Clarkson said one potential dentist is soon expected to visit the Northwest Territories community to explore housing options. Inuvik’s only dental clinic, the Western Arctic Dental Group, has been closed since May … Read more

Study links poor oral health to abnormal blood test results in older adults

A study of 118 people aged 50 and older who underwent routine medical check-ups found a link between oral health and blood test results. (iStock)

A new Japanese study has found that older adults with abnormal blood test results may also have declining oral health—suggesting a potential link between oral function and the risk of lifestyle-related diseases. The study, published online in the Journal of Oral Rehabilitation on April 17, 2025, was led by Professor Mitsuyoshi Yoshida, chair of the … Read more

Tufts researchers develop ‘smart’ dental implant to mimic natural teeth — next step, testing the brain

Subhashis Ghosh, Dr. Jake Jinkun Chen and Siddhartha Das, co-authors of the study, at the Tufts Biomedical Research and Public Health Building. (Photo courtesy Jenna Schad/Tufts University)

Tufts University scientists are developing a new kind of dental implant they hope will eventually feel and function like real teeth — right down to sending signals to the brain. “They lack the nerve elements that natural teeth have.” That’s how Dr. Jake Jinkun Chen, professor of periodontology and director of the Division of Oral … Read more

Hudson’s Bay workers lose dental benefits as historic retailer shutters

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Hudson’s Bay employees have been told they won’t receive severance pay — and they’ve also lost their health, dental and life insurance benefits, The Canadian Press reported. A law firm representing the workers says that because of the company’s significant secured debt, it’s unclear whether employees will be able to recover anything owed to them … Read more

Researchers turn urine into material for dental and bone implants

“This process to yield hydroxyapatite, or bone mineral, takes less than one day,” says David Kisailus, UC Irvine professor of materials science and engineering. (Photo courtesy: Steve Zylius / UC Irvine)

Scientists have developed a novel biomanufacturing method that converts human urine into hydroxyapatite—a high-value, biocompatible mineral commonly used in dental and bone implants. The process, led by researchers at the University of California, Irvine, involves genetically engineered yeast that transforms waste into hydroxyapatite (HAp), a calcium phosphate compound that can also be used to restore … Read more