 However, this glass resulted in a cement too brittle for use in load-bearing applications such as in molar teeth.The properties of G338 being shown to be related to its phase-composition, specifically the interplay between its three amorphous phases Ca/Na-Al-Si-O, Ca-Al-F and Ca-P-O-F, as characterised by mechanical testing, dynamic scanning calorimetry (DSC) and X-ray diffraction (XRD),  as well as quantum chemical modelling and "ab initio" molecular dynamics simulations.When the two dental sealants are compared, there has always been a contradiction as to which materials is more effective in caries reduction.