Built for crunching and chewing, teeth mostly consist of hard, inorganic minerals like calcium. But they also contain nerves, blood vessels and specialized cells that manufacture the tooth’s different parts, says Bill Gengler, a veterinary dentist and oral surgeon with the UW-Madison School of Veterinary Medicine.
The tooth’s outermost layer – the part we brush – [...]

Developmental biology meets dentistry as scientists grow human teeth in test tubes. All the latest on test-tube teeth. Sounds better than the iron teeth that the Romans used…