Exposing teeth to excessive fluoride alters calcium signaling, mitochondrial function, and gene expression in the cells forming tooth enamel- a novel explanation for how dental fluorosis, a condition caused by overexposure to fluoride during childhood, arises.... NEWS MEDICAL · 2 months
The tooth enamel of the Atapuerca hominids grew faster than in modern humans  PHYS.ORG · 4 weeks
The CENIEH has conducted the first study which tackles counting the two types of enamel growth lines, in Lower Pleistocene and Middle... more
Are opioids necessary after tooth extraction?  NEWS MEDICAL · 3 weeks
A new study published in the journal JAMA Network Open in March 2020 shows that dentists can eliminate opioid analgesia from their armory of pain reliever after a tooth extraction, or at least dramatically reduce its... more
Tooth be told: Earless seals existed in ancient Australia  PHYS.ORG · 5 days
A fossilised seal tooth found on a Victorian beach could hold the key to uncovering the history and geography of earless seals that graced Australia's shores three million years ago. more
World's oldest human DNA found in 800,000-year-old tooth of a cannibal  LIVE SCIENCE · 5 days
A protein analysis of an 800,000-year-old tooth suggests the supposed cannibal species Homo antecessor was only distantly related to humans and Neanderthals. more
The Latest: New Zealand: Easter Bunny, Tooth Fairy essential  ABC NEWS · 2 days
New Zealand has decided there is some magic in the world after officially declaring children’s favorites the Easter Bunny and the Tooth Fairy are essential workers more
Scientists develop a new cathode material for metal-ion batteries  PHYS.ORG · 2 weeks
Researchers from the Skoltech Center for Energy Science and Technology (CEST) created a new cathode material based on titanium fluoride phosphate, which achieved superior energy performance and stable operation at... more
Teeth record past stresses in life, study finds  NEWS MEDICAL · 1 week
Teeth can do more than just masticate. A new study has found that the teeth serve as one's archive in life, recording biological events, from tooth formation to death. more
Seeing how grain boundaries transform in a metal  PHYS.ORG · 3 weeks
Grain boundaries are one of the most prominent defects in engineering materials separating different crystallites, which determine their strength, corrosion resistance and failure. Typically, these interfaces are regarded as quasi two-dimensional defects... more
Digestive symptoms are common in COVID-19 patients, study reveals  NEWS MEDICAL · 3 weeks
The American Journal of Gastroenterology published today a new study that reveals digestive symptoms, including diarrhea, are common in COVID-19 patients. The study comes from the Wuhan Medical Treatment Expert... more
Study reveals collective dynamics of active matter systems  PHYS.ORG · 1 month
Flocks of starlings that produce dazzling patterns across the sky are natural examples of active matter—groups of individual agents coming together to create collective dynamics. In a study featured on the cover... more
Study reveals grasshopper declines associated with declines in quality of prairie grasses  PHYS.ORG · 4 weeks
A University of Oklahoma-led study shows that grasshopper numbers have declined over 30% in a Kansas grassland preserve over the past two decades. Published... more
Clemson study provides insight into role of fungi in early childhood dental health  NEWS MEDICAL · 2 days
Although mostly preventable, tooth decay is one of the most common chronic diseases in children worldwide, particularly in developing countries. If left... more
Study reveals how long COVID-19 remains infectious on cardboard, metal and plastic  SCIENCE DAILY · 3 weeks
The virus that causes COVID-19 remains for several hours to days on surfaces and in aerosols, a new scientific study has found. The study... more
Banded mongoose study reveals how its environment influences the spread of infectious disease  SCIENCE DAILY · 4 weeks
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Psychosis may be caused by problems with specialized nerve cells  NEWS MEDICAL · 3 weeks
A new Japanese study in mice published in the journal Nature indicates that the cause of the profound mental disturbance termed psychosis could be due to defects in... more
Aluminosilicate glasses can serve as visible luminescence materials  PHYS.ORG · 2 weeks
Broadband emissions in the visible spectral range can be achieved by pumping Pr3+ doped in crystal, ceramic and glass. Fluoride glasses are commonly used as host material of gain fiber due to... more
Fossil teeth yield oldest genetic material from extinct human species  REUTERS · 2 days
Scientists have extracted from dental enamel the oldest human genetic material ever obtained, helping clarify the... more
Commonly used mouthwash increases lactate-producing bacteria that lower saliva pH  NEWS MEDICAL · 2 weeks
The first study looking at the effect of chlorhexidine mouthwash on the entire oral microbiome has found its use significantly increases the abundance of lactate-producing bacteria that lower... more
Commonly used mouthwash could make saliva significantly more acidic, change microbes  SCIENCE DAILY · 2 weeks
The first study looking at the effect of chlorhexidine mouthwash on the entire oral microbiome has found its use significantly increases the abundance of lactate-producing bacteria... more
Neanderthals were pioneers in marine resource exploitation: study  PHYS.ORG · 2 weeks
The journal Science has published a study led by the ICREA researcher João Zilhão from the University of Barcelona on the excavation in Cueva de Figueira Brava, Portugal, which was used as... more
How plants protect themselves from sun damage  MIT · 4 weeks
Study reveals a mechanism that plants can use to dissipate excess sunlight as heat. more
Physical force alone spurs gene expression, study reveals  PHYS.ORG · 1 week
Cells will ramp up gene expression in response to physical forces alone, a new study finds. Gene activation, the first step of protein production, starts less than one millisecond after a cell... more
Study reveals spatial patterns of alcohol‐related mortality in post-Soviet countries  NEWS MEDICAL · 4 weeks
In some former Soviet bloc countries, men often die early due to alcohol abuse. Alcoholism-related mortality varies considerably from one region to another, according to a study in... more
Study reveals how serotonin balances communication within the brain  NEWS MEDICAL · 1 day
Our brain is steadily engaged in soliloquies. These internal communications are usually also bombarded with external sensory events. more
Urban coyotes eat lots of cats—and human garbage, study of their poop reveals  PHYS.ORG · 3 weeks
A study that "dissected" 3,100 pieces of coyote poop discovered domestic cats are a big part of what urban coyotes eat for... more
Study reveals frequent use of coercive measures in Finnish psychiatric care  NEWS MEDICAL · 1 week
The use of coercive measures in psychiatric care has decreased over the past years. However, a new study shows that coercive measures are still frequently used... more
Coronavirus remains for several hours to days on surfaces and in aerosols, study reveals  NEWS MEDICAL · 2 weeks
The virus that causes COVID-19 remains for several hours to days on surfaces and in aerosols, a new study published... more
'Vacancies' crystal defects key to improved design of lightweight aluminium alloys  PHYS.ORG · 4 weeks
Monash University researchers in Australia have used a combination of atomic-scale imaging and simulations to improve the understanding of the theta-prime strengthening phase in the aluminium... more
How teachers are using technology to keep in touch with students during coronavirus school closures  PHYS.ORG · 2 weeks
Kindergarten teacher Jill Hammel is keeping up with her class: Emily has a loose tooth that could fall... more
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