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How teeth sense cold temperatures

New research identifies a protein in teeth that senses the cold.

Odontoblasts containing the ion channel TRPC5 (green) tightly pack the area between the pulp and the dentin in a mouse's molar. The cells' long-haired extensions fill the thin canals in dentin that extend towards the enamel. Credit: L. Bernal et al./Science Advances 2021
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