# Radio Around the Region- The Three Grades of Cavity (988167)

U.S. Army CPT. Katherine Guevara, Brian D. Allgood Army Community Hospital General Dentist, speaks with Senior Airman Chase Sullivan, a broadcaster and DJ assigned to American Forces Network Humphreys, during a radio interview at Camp Humphreys, South Korea, November 20, 2025. During the interview, Guevara discussed the three layers of teeth, describing how and when cavities in each layer are treated. (U.S. Army video by Sgt. Inwoo Cho)

- Kind: Short
- Year: 2025
- Runtime: 1 min
- By: U.S. Army video by Staff Sgt. Matthew Angulo, Cpl. In Woo Cho
- Archive: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Radio_Around_the_Region-_The_Three_Grades_of_Cavity_(988167).webm)
- Licence or status: Public domain (as the archive states it)
- Credit: U.S. Army video by Staff Sgt. Matthew Angulo, Cpl. In Woo Cho
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/commons/195825575?play=1)