FIGURE 1.

X‐ray diffraction plots of test powders with and without strontium doping showing the main phases present. The bioactive, strontium‐doped bioactive glass and the glass ionomers were amorphous with no detectable peaks. CS, Ca_2−xSr_xSiO₄ (ICDD: 98–008‐2997); CSP, calcium strontium phosphate (ICDD 34–0479); HA, hydroxyapatite (ICDD: 9–432); SHA, strontium‐hydroxyapatite (ICDD 33–1348); TCS, tricalcium silicate (ICDD: 00–049‐0442); S3S: Sr₃ Si O₅ (ICDD: 98–041‐8933); S2S: Sr₂ Si O₄ (ICDD: 00–039‐1256) (n = 3)