Saber-toothed tigers' skulls reveal how they grew their fangs
The skulls showed the saber tooth socket was occupied by two teeth, with the adult tooth slotted into the baby tooth.
Jurassic fossil discovery leads to new mammal theory
"The fossils show incremental modifications that demonstrate the complex process of adaptation," researcher Patricia Vickers-Rich said.
Vikings may have practiced body modification as "rite of initiation"
Teeth filing and skull deformation are examples of body modification customs that were practiced during the Viking Age.
Dentist reveals what she does instead of "harmful" teeth-whitening trend
When it comes to teeth whitening, there are a lot of misleading trends that can do more harm than good. So what should you do to get that bright smile?
Three times you should never brush your teeth, according to a dentist
Newsweek spoke to Dr. Shaadi Manouchehri about her video that has 12 million views on TikTok.
Simple, low-cost treatment staves off tooth decay in kids
The treatment promises to reduce the most common chronic disease among U.S. children by 80 percent.
Dad sends letter from "Tooth Fairy" to untidy daughter—plan backfires
"I try to be honest with my kids about my own shortcomings and tell them not to be messy like me," the dad told Newsweek.
Why teen who "didn't like" her teeth decided to shave them with a nail file
Dr. Alex Mehler told Newsweek that this is "incredibly concerning on many levels" and urged people not to modify their own teeth.
I had a toothache—I was told I had 6 years to live
In recovery, I experienced respiratory arrest, then a heart attack due to the extreme swelling in my face and neck.
The five things your dentist doesn't want you to know
Dr. Shaadi Manouchehri spoke with Newsweek about the five things that your dentist probably doesn't want you to know.
New Lorde photos concern fans—"weird and creepy"
"Is Lorde a serial killer?" joked one fan, while another said the singer was "Trying to be shocking."
Not brushing teeth could harm your baby, pregnant mothers warned
Oral plaque accumulation in expectant mothers is a significant determinant of fungal transmission to newborns, scientists warn.
Dentist warns of link between not brushing your teeth and dementia
"The public needs to be more aware of the correlation between oral health and cognitive abilities," researchers told Newsweek.
Internet confused by happy greyhound's unusual habit: "Chatter man"
A vet told Newsweek that this "is a unique trait" that greyhounds display, but it's usually a sign that they're happy.
Medieval skeletons provide "special understanding" of everyday Viking life
Researchers have found evidence of how Vikings treated dental problems, including seemingly filing their teeth, which may have been a bid to relieve tooth pain.
Vet shares risks of using bones to clean dog's teeth
"My vet advised against feeding raw. Not worth the risks," one user said.
Dreaded root canals may soon become thing of the past, say dentists
A special type of molecule could be used to regenerate infected pulp within a tooth, reducing the need to drill into it and fill it.
Bridesmaid forced to make unexpected pitstop before wedding: "Panic"
Millie Knight, 29, told Newsweek her false tooth "just snapped off and went down the plug hole."
Why you should never brush your teeth more than twice a day
"Overbrushing does not give you a healthier mouth," a cosmetic dentist told Newsweek.
Laughter as man still high from dental surgery forgets "what dogs are"
The recovering patient appeared terrified as his dog bounced over to greet him, with the man even heard to say: "What the hell is that?"
The dangerous bacteria on your toothbrush and how to prevent it
Newsweek spoke with two dental experts based in the U.S. to learn what hazards come from an unclean toothbrush and how to prevent them.
Teenager's "odd and unique" method of using toothpaste baffles internet
"She has always been an odd and unique individual. I knew she used it weird, but that was ridiculous," her father, Scott, told Newsweek.
Cat left with "permanent" grumpy expression after losing front teeth
"Losing her teeth has not impacted her life one bit," the cat's owner told Newsweek.
Skeleton toothpaste mineral is "as effective as fluoride"
The compound was first used by NASA to replace lost minerals in the teeth and bones of astronauts.
Scientists reveal link between brushing teeth and dementia
Maintaining good oral hygiene could protect us from brain disease later in life, research suggests.
Woman, 44, dies after being admitted to hospital for toothache
The patient suffered an anaphylactic shock hours after being admitted.
Owner thinks puppy has teeth shaped like "little ducks", internet agrees
"They look like mittens to me but now I can't unsee the ducks!" commented one user on TikTok.
Woman shares what years of vaping have done to her teeth in terrifying clip
"I was told I had to quit nicotine within the year otherwise my teeth are going to start falling out," the 20-year-old said. "That was not what I expected."
Woman, 23, dies after wisdom tooth extraction at the dentist
"We don't know what happened, so we wait for justice," her father said, after civil police said that his daughter's death will be investigated within 30 days.
Woman finds enormous tooth of prehistoric megalodon ancestor
"I thought right away that it looked similar to a shark's tooth, but was confused because it was quite a large size," Rachel Shill Cook told Newsweek.