Honeycomb-like Structures in Teeth

The enamel surface of teeth that have been etched by acid are visualized. Due to the difference in apatite crystals in the enamel, a crude beehive-like structure is formed when the teeth are etched. This can be visualized in the oral cavity or water similar to that in the oral cavity. (Using Petri dish type solution cell.)
(Data provided by: Dr. Nagamine DDS, Ph.D. Department of Operative Dentistry, Okayama University)