A new clinical trial shows that silver diamine fluoride can stop tooth decay in children without the need for painful drilling or anesthesia. A non-invasive treatment for childhood cavities could soon gain broader regulatory backing in the United...

A camper’s casual find near a lake shore turned out to be a rare prehistoric tooth, an extraordinary discovery that has stunned local museum experts. A routine camping trip along the shores of British Columbia’s Adams Lake has yielded a rare glimpse...

A family vacationing on the New Jersey coast has discovered a rare, prehistoric megalodon tooth, uncovering a remarkable piece of ancient history. A routine family getaway to the New Jersey coastline turned into a monumental paleontological discovery...

Understanding which baby teeth come in first can help parents prepare for each stage. Below is a typical timeline and baby tooth eruption chart: Lower Front Teeth (Incisors) – 6-10 months: Often, the first baby teeth to erupt are the lower central...

By examining 200 teeth belonging to 37 early mammal species, scientists have uncovered evidence that mammals first expanded tooth size before evolving the specialized structures that later enabled diverse dietary strategies. When the non‑avian dinosaurs...

helps wash away food particles and bacteria, reducing the risk of cavities, gum disease, and oral infections. Maintaining tooth integrity: Minerals in saliva help neutralize acids and repair early enamel damage, protecting teeth from decay. Taste...

harbor specific ratios of carbon-12 and carbon-13, a signature expressed as δ13C that leaves a permanent trace in the tooth enamel of the animals that consume them. Typically, an animal’s tooth enamel reflects a predictable shift in these ratios,...

Midpeninsula Regional Open Space District Paleontologist Wayne Thompson, owner of Pacific Paleontology, described the tooth as the most complete mastodon molar he has encountered from this specific region. “I had chills and shivers up and down my...

climbing and leaping. Because tiny primate skeletons fracture easily over geologic time, researchers often rely on durable tooth enamel and jaw fragments. The team applied precise measurements and three‑dimensional scanning to compare tooth size, shape,...

lightweight computer vision models reveals high accuracy in detecting hidden dental remnants. A tiny left-behind piece of a tooth root can trigger hidden bone infections or ruin a dental implant, but dentists frequently miss them on standard X-rays...

a glimpse of the long‑mysterious Denisovan face, thanks to a minuscule amount of ancient dental plaque preserved on a single tooth. The fossil’s journey began in 1933 when a construction worker digging the foundations of the Dongjiang Bridge near Harbin...

water-dependent rodent, such a range would represent a nearly impossible barrier to navigate. “Finding a capybara tooth in a marine deposit in what today is one of the driest regions on Earth is just freakish,” Priscilla Martinez from the University of...

by a dental formula as follows: Structure of Teeth The teeth are formed from both the epidermis and dermis. A typical tooth can be divided into three parts. The crown, which is the visible part of the tooth and projects out from the gum, the neck lying...

nut. A second individual, dating to the middle Holocene between 6,300 and 7,600 years ago, exhibited similar patterns of tooth wear and poor oral health, reinforcing the theory that these practices were established traditions. Historical distribution of...

outcrop known as Tim’s Confession, part of the Smiley Draw fauna in the Great Divide Basin, yielded dozens of jaw and tooth fragments attributable to Tetonius varleyorum. The species name honors the Varley family, owners of a local truck stop who...

16 sites dated between roughly 4,000 and 3,200 years before present. Three youngsters displayed the characteristic bone and tooth alterations that define congenital treponematosis—a group that includes syphilis, yaws and endemic syphilis. Pre‑historic...

to ground those theories. Decoding the Molecular Thermometer The research relies on a geochemical technique that analyzes tooth enamel rather than traditional fossil bone. Enamel contains carbonate molecules marked by specific carbon and oxygen...

through the air cell, signaling the drying up of the allantois, which served as its lungs during development. Using the egg tooth on its beak and the muscle on the back of its neck, the chick cuts through the shell. It alternates between resting and...

the scientists employed several approaches. High resolution micro CT scanning allowed for detailed visualization of internal tooth anatomy and unerupted teeth that could not be examined by traditional means. This helped clarify dental features that are...

likely arrived at a carcass after the dragon had finished the prime cuts, collecting whatever tissue remained. Models of tooth marks created by Komodo dragons.(A to F) Scores of Komodo dragon tooth marks generated from our experimental study. Credit:...