

A medical student holds a synthetic polymer tooth in a practical class at the School of Dentistry of the Pirogov Russian National Research Medical University, in Moscow, Russia.
- Author: Evgeny Biyatov
- Credit: Sputnik
- Source: Sputnik
- Original: Digital
- Media: JPEG, 4503x2914px, 6.5Mb
- Job-ID: bf9c85bf156abf6c