 In addition, the polymer chains are incorporated into both, weaving cross links, and in dentine the collagen fibres also contribute, both linking physically and H-bonding to the GIC salt precipitates.There is also microretention from porosities occurring in the hydroxyapatite.Works employing non-destructive neutron scattering and terahertz (THz) spectroscopy have evidenced that GIC’s developing fracture toughness during setting is related to interfacial THz dynamics, changing atomic cohesion and fluctuating interfacial configurations.