This study relates to a new biocement prepared from mixtures of Bi-substituted hydroxyapatite and calcium sulphate dihydrate using deionized water as liquid phase. The Bi-substituted hydroxyapatite nanopowder was produced by the co-precipitation method using Ca(OH)₂, H₃PO₄ and Bi(NO₃)₃·5H₂O raw materials as calcium, phosphorous and bismuth sources. The XRD diffractograms of the cement powders indicate only hydroxyapatite and CaSO₄ phases. This biocement exhibits radio-opacity, thus enhancing its utility in the dental and medical fields.

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