A new device called "tooth-on-a-chip" is allowing researchers from Dr. Luiz Bertassoni's OHSU lab to observe how teeth interact with reconstruction materials and bacteria. A sliver of dentin material (center) is placed between two channels, allowing scientists to observe the tooth as it interacts with materials and bacteria. (OHSU/Kristyna Wentz-Graff)

A new device called "tooth-on-a-chip" is allowing researchers from Dr. Luiz Bertassoni's OHSU lab to observe how teeth interact with reconstruction materials and bacteria. A sliver of dentin material (center) is placed between two channels, allowing scientists to observe the tooth as it interacts with materials and bacteria. (OHSU/Kristyna Wentz-Graff)

(Left to right) Anthony Tahayeri, and Drs. Cristiane Franca and Luiz E. Bertassoni, work with a new device called "tooth-on-a-chip" that allows researchers from the Bertassoni Lab to at OHSU observe how teeth interact with reconstruction materials and bacteria. (OHSU/Kristyna Wentz-Graff)

Luiz Bertassoni, D.D.S., Ph.D. (OHSU/Kristyna Wentz-Graff)

Anthony Tahayeri, research assistant in the Bertassoni Lab at OHSU, December 11, 2019. (OHSU/Kristyna Wentz-Graff)

Karimi’s research is focused on helping the eye regain its natural ability to control pressure on its own. (OHSU/Christine Torres Hicks)

Moss studies how the brain processes sensory information to create meaningful experiences. (OHSU/Christine Torres Hicks)