Forming part of a closely-knit interdisciplinary approach to PACs as dentin biomodification agents, the present but also past and ongoing studies have frequently pointed out that the structural complexity of PACs is paired with substantial heterogeneity of the PAC literature in terms of the interplay between reported biological/bioactivity and chemistry/structural information. In this context, robust NMR data play a key role as being most significant for rigor and reproducibility: