Oral bacterium tied to accelerated breast cancer growth and spread in preclinical study

One in 8 females in Canada are expected to develop breast cancer in their lifetime. (iStock)

A common oral bacterium associated with periodontal disease may drive the development and spread of breast cancer, particularly in genetically susceptible patients, according to new research from the Johns Hopkins Kimmel Cancer Center. The study, published Jan. 15 in Cell Communication and Signaling, found that Fusobacterium nucleatum, a bacterium commonly found in the oral cavity, … Read more

UB professors receive US$440,275 NIH grant to study salivary gland regeneration

Salivary gland disorders affect an estimated 20 per cent of people worldwide, according to the researchers. (iStock)

Two researchers from the University at Buffalo have received a two-year US$440,275 grant from the National Institute of Dental and Craniofacial Research to study how salivary glands repair and regenerate after injury. Rose-Anne Romano, PhD, associate professor of oral biology in the University at Buffalo University at Buffalo School of Dental Medicine, is leading the … Read more

USask College of Dentistry secures $2-million Brazil research partnership for oral-health innovation

The Administration Building at the University of Saskatchewan in Saskatoon. (iStock)

The University of Saskatchewan College of Dentistry has secured a $2-million international research partnership aimed at advancing oral, dental and craniofacial science through collaboration with Brazilian researchers. The agreement with the São Paulo Research Foundation (FAPESP) will fund joint projects over five years, supporting 10 research grants annually for a total of 50 studies. The … Read more

Dental researchers considering silencing gum disease bacterium after discovering it has a ‘genetic brake’

Porphyromonas gingivalis oral bacterium, 360 degree panorama view computer illustration. (iStock)

Dental researchers have discovered that the primary bacterium driving gum disease carries an internal “genetic brake” that controls its own aggression — a finding that could open the door to targeted genetic therapies. Researchers at the University of Florida College of Dentistry say that by locking this brake in place, future treatments could silence Porphyromonas … Read more

Gum disease in children increases cardiovascular risk in adult life

Researchers say early childhood oral health may have long-term implications for cardiovascular risk. (iStock)

Gum disease in children is associated with a higher risk of cardiovascular complications in adulthood, according to a new Danish study of more than half a million children. Researchers analyzed data from 568,778 children born between 1963 and 1972 using records from the Danish Health Authority’s National Child Odontology Register (SCOR). They compared those records … Read more

Nitrous oxide sedation carries carbon footprint equal to 72.8-mile car trip

Nitrous oxide has a global warming potential 273 times greater than carbon dioxide. (iStock)

The average carbon footprint of a single nitrous oxide — commonly known as laughing gas — sedation appointment is 28.6 kilograms of carbon dioxide equivalent (kg CO₂e), equal to a 72.8-mile journey in a gasoline car, according to a study by the UCL Eastman Dental Institute at University College London. Researchers analysed data from 891 … Read more

AI dental algorithm shows high accuracy in guiding treatment for patients missing permanent teeth

AI dental algorithm in orthodontics can guide treatment decisions but will not replace clinical judgment, particularly in complex cases. (iStock)

An artificial intelligence (AI) dental algorithm has demonstrated 96.4% accuracy in helping orthodontists determine the best treatment approach for patients missing permanent second premolars — a common but complex clinical scenario, the University at Buffalo reported. While most children see their permanent second premolars erupt around age 11, between two and 11 per cent of … Read more

Diabetes screening in dental clinics could help detect undiagnosed cases, study shows

Many patients in the study were unaware of their glycaemic status. (iStock)

Diabetes screening in dental clinics could be a new frontline for early detection, study suggests. HbA1c values — the standard diagnostic marker for diabetes — rose progressively with worsening gum disease, from periodontal health to gingivitis to periodontitis, according to a cross-sectional study published Feb. 13 in the Journal of Dentistry. Researchers at King’s College … Read more

Team developing gum-healing prototype wins U of T bioengineering competition

SmileHacks 2026 winning teams presenting dental innovation prototypes at University of Toronto

A prototype aimed at supporting gum healing using electromagnetic stimulation earned first place at the University of Toronto’s bioengineering competition, SmileHacks, on Saturday. Ten teams — primarily undergraduate students — presented ideas ranging from xerostomia solutions and gamified pediatric oral health tools to robotic automation designed to address staffing shortages in dental offices. The $800 first-place prize … Read more

Wheatgrass extract outperforms NSAID in reducing irreversible pulpitis pain, study finds

Researchers used 500 mg wheatgrass extract to reduce acute dental pain in patients with symptomatic irreversible pulpitis. (iStock)

A randomized clinical trial suggests sublingual wheatgrass extract may reduce acute dental pain more effectively than a commonly prescribed non-steroidal anti-inflammatory drug (NSAID) in patients with symptomatic irreversible pulpitis. The study, published Feb. 4 in Odontology, compared the analgesic effects of sublingual wheatgrass (Triticum aestivum) extract with piroxicam and a placebo. Researchers enrolled 45 patients … Read more

Study reveals gums are pre-wired for immune defense — even in health

In health and disease, the gingiva remains on immune alert to protect the oral barrier, researchers report. (iStock)

Researchers have generated a detailed multi-omics atlas of the human oral mucosa, revealing that the gingiva is organized into distinct immune zones that remain structurally intact even during inflammatory disease. The study, published Feb. 9 in Nature Immunology, describes a “remarkable immune zonation” at the tooth–gum interface, where a dynamic epithelium is underlined by a … Read more

U of T biomedical engineering competition expands nationally, tackles oral health

Members of The NeuroHack organizing team pose at the opening ceremony with keynote speaker Taufik A. Valiante from the Division of Neurosurgery, Department of Surgery, University of Toronto, during last year’s BMEC. (Photo supplied)

The University of Toronto’s Biomedical Engineering Design Competition (BMEC) is expanding nationally for the first time this year, with dentistry and oral health selected as the central theme — an area drawing increased national attention. As of Dec. 31, more than six million Canadians have been approved under the Canadian Dental Care Plan (CDCP), with … Read more

U.S. researcher: Oral health care an ‘underrecognized’ factor in secondary stroke prevention

One abstract showed that people who visited a dentist at least once a year had a 39 per cent lower risk of secondary ischemic stroke. (iStock)

Regular dental care may significantly reduce the risk of a second ischemic stroke among patients with cardiovascular disease, according to research presented at the International Stroke Conference (ISC) 2026. One abstract showed that patients who visited a dentist at least once a year had a 39 per cent lower risk of secondary ischemic stroke compared … Read more

Penn AI study uncovers new links between dental caries and environmental, nutritional risks

Their analysis showed the strongest signals of caries clustering in very young children — who also displayed patterns of iron and vitamin D deficiency — and in older adults. (iStock)

Is there a link between pollutant exposure and dental caries risk? Using artificial intelligence to analyze large U.S. health datasets, researchers at the University of Pennsylvania say they have uncovered previously unrecognized patterns that broaden how dental caries risk may be understood. Researchers at Penn Dental Medicine analyzed data from the National Health and Nutrition … Read more

Studies link systemic inflammation to oral disease as UB researchers identify key protein

By mid-century, nearly one in four Americans will be age 65 or older. In Canada, about one in five people are currently 65 or older, a share projected to approach one quarter of the population as baby boomers age. (iStock)

Growing evidence suggests systemic inflammation may influence oral disease risk, with new findings from University at Buffalo researchers identifying a protein that helps regulate inflammatory pathways associated with aging, immune function and bone loss. The UB study, led by Keith Kirkwood, professor of oral biology and senior associate dean for research at the University at … Read more

Abundance of oral bacteria strongly influenced by genes, large study finds

Researchers analyzed whole-genome sequences from saliva-derived DNA from more than 12,500 individuals. (iStock)

Even with consistent brushing and flossing, some people develop more cavities than others — a difference that may be partly explained by genetics and the make-up of microbes in the mouth, according to a new study based on the largest collection of oral microbiome profiles to date. The study, led by scientists at the Broad … Read more

NIDCR awards US$2.91M to study why dental implants sometimes fail

Clinical studies generally report implant survival rates approaching 95–98 per cent. (iStock)

The National Institute of Dental and Craniofacial Research (NIDCR), part of the National Institutes of Health, has awarded US$2.91 million to the Eastman Institute for Oral Health (EIOH) to investigate why dental implants sometimes fail and how those failures might be prevented. Dental implants made of titanium have been used successfully for decades to replace … Read more

Harvard dental school initiative names new director to bridge oral health and primary care

Lisa Simon is an assistant professor of Oral Health Policy and Epidemiology at the Harvard School of Dental Medicine, an assistant professor of Medicine at the Harvard Medical School, and an associate physician at Brigham and Women’s Hospital. (Photo courtesy of Harvard University)

Integrating oral health into primary care has long been a professional goal for Harvard alumna and physician-dentist Lisa Simon. That goal is now taking on a broader scope following Simon’s recent appointment as director of the Harvard School of Dental Medicine (HSDM) Initiative to Integrate Oral Health and Medicine, a program focused on bridging the … Read more