Final answer:
The greatest curvature on the Cementoenamel Junction (CEJ) is found at the mesial and distal surfaces of the tooth, related to principles of surface charge density in physics.
Step-by-step explanation:
The greatest curvature on the Cementoenamel Junction (CEJ) is found at the mesial and distal surfaces of the tooth. This is correlated with the principles that suggest areas with a smaller radius of curvature will have higher surface charge density or more intense effects in physical phenomena such as magnetic fields. In the context of dental anatomy, this translates to the CEJ being more pronounced or having a greater curve at the mesial and distal aspects compared to the facial (buccal/labial) and lingual surfaces of a tooth.