What happens when human maxillary second and third molar tooth germs collide during development?

Abstract: The coronal portion of the developing upper third molar may be impacted by the developing roots of the second molar. At the relevant age – roughly from 10 to 13 years – both organs are largely soft tissues when and where they collide. It is obviously not possible to obtain tissue from both teeth whilst they are developing, but a frequent after-effect of such collisions is extraction of the third molar....

All that fractures is not bone: microscopic anatomy of vertebral bodies.

Abstract: Abstract for poster P25 presented at Bone Research Society, Winchester 28/6/2018 All that fractures is not bone: microscopic anatomy of vertebral bodies. Objectives: To understand interface between cortical shell and cancellous bone in human vertebral bodies, age changes, and probable mechanical significance. Archival material, 3-4 mm mid-body vertical slices, 80 L2 embedded PMMA: blocks polished, carbon coated, 20 kV qBSE SEM; high contrast resolution x-ray microtomography (XMT: 44 hour scans); iodine vapour staining and further BSE SEM, uncoated....