Absolutely avoid crunching ice cubes in order to protect your enamel, avoid weakening existing dental work, and spare the jaw joints.

noli's read

This warning is based on a very strong consensus among oral health professionals, notably supported by the American Dental Association (ADA). Crunching ice cubes combines intense mechanical pressure and extreme cold. Experts from renowned universities, such as Tufts and Columbia, confirm through clinical reports that this thermal shock causes micro-cracks in the enamel, our natural protective barrier. Furthermore, expert opinions emphasize that enamel and existing dental work (such as crowns) do not contract at the same rate when exposed to cold, which can cause them to detach or break. Finally, field observations directly link the brute force required to break ice to tension and pain in the jaw joints. This wellness advice is therefore scientifically indisputable.

the sources

No named source held this one up — that absence is part of the verdict.