Few dreams feel as physical as this one: a tooth loosening, crumbling or dropping into your hand. It is one of the "typical dreams" that turn up across countries and centuries, and it has collected a long list of meanings.

The folk reading. Most of them are about loss. According to a review of the history by the psychologists Naama Rozen and Nirit Soffer-Dudek, the Greek dream interpreter Artemidorus linked losing teeth to paying debts, and in the Talmudic tradition teeth dreams were read as foretelling a death in the family. A popular American dream book of 1862, Felix Fontaine's Golden Wheel Dream-book, says losing your teeth "denotes the loss of friends, troubles, and misfortunes". Modern guides tend to swap prophecy for psychology: the Sleep Foundation lists stress and anxiety, a sense of losing control, worries about appearance, and grief among the usual readings.

What research says. Fewer people have this dream than its fame suggests. In a 2003 survey of 1,181 Canadian students, 18.8% had ever dreamed of their teeth falling out, against 81.5% for being chased. And when Rozen and Soffer-Dudek tested the explanations in 2018, teeth dreams were not related to psychological distress, while some other dream themes were. They were related to dental irritation: tension in the teeth, gums or jaw on waking, which can point to grinding or clenching during sleep. Oddly, this is close to an explanation that Sigmund Freud reported in The Interpretation of Dreams, and judged insufficient: that the dreams came from "dental irritation".

That is one study of 210 students, so it is a strong lead rather than the last word. But it is more than any dream dictionary has.

If you keep waking with a sore jaw, a dentist is the person to ask. If dreams of any kind are frequent, upsetting or getting in the way of sleep, it is worth talking to a doctor or a mental-health professional. This page is educational and is not a diagnosis. There is a longer guide in the Psychology world's dream decoder.