A 59,000-year-old Neanderthal molar contains evidence of a cavity removal procedure, offering fresh insight into these early humans' intelligence.

Despite the many real conversations out there surrounding pregnancy—infertility, miscarriage, or high-risk complications—there's one important topic that doesn't get as much limelight: molar pregnancy ...

On weekday mornings in late winter, they start to arrive before dawn. They drive in from Arizona or California, catch a shuttle from Yuma, or park their car in a lot in the Sonoran Desert and cross ...

If a molar breaks off at or below your gum line, see a dentist right away or go to the emergency room if needed. Faster care improves your odds of saving the tooth and avoiding infection. Symptoms can ...

A molar pregnancy is a complication in which an abnormal mass or tumor forms inside your uterus, instead of a placenta. In a healthy pregnancy, the placenta is an organ that grows in the uterus and ...

A molar found in a cave in Laos may belong to a member of the Denisovans, a group of ancient humans first identified in 2010. If confirmed, it would be the first fossil evidence of the Denisovans in ...

Pregnancy happens after an egg is fertilized and burrows into the womb. Sometimes, though, these delicate beginning stages can get mixed up. When this happens, a pregnancy may not go the way it should ...

Molar mass is the mass of one mole of a given substance, typically expressed in grams per mole (g/mol). It is a fundamental concept in chemistry that helps relate the mass of a substance to the amount ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...