Complex sentence: Megadontia works by increasing the ratio of minimum to maximum second moments of area or the efficiency of a shape to resist bending or malformation with respect to a particular axis about which the bending occurs.
Split into simpler sentences: Megadontia works by increasing the ratio of minimum to maximum second moments of area or the efficiency of a shape to resist bending or malformation. This resistance is tied to a particular axis about which the bending occurs.