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. Calcium phosphates are chemical compounds that can be found in  various forms within nature, as well as in human jaws and bones. The aim of  this study was to assess the structure of solid chemical compounds which form  the structure of normal and osteoporotic jaw-bones. Materials and Methods.  The jaw-bones taken from human cadavers were used in the study.  Crystalographic forms of calcium phosphate, in the samples of human jaw-bone,  were determined using X-ray diffraction technique. The experimental bone  samples originated from osteoporotic jaw-bone of cadavers while control  samples were taken from dentate jaw-bones of non-osteoporotic cadavers.  Results. The results of this study showed that hydroxyapatite was the only  phase determined in control non-osteoporotic bone samples. In experimental  (osteoporotic) bone samples, the same phase was registered, as well as  calcium monophosphate and hydrated calcium phosphate, registered as  increments of values on α axis. Conclusion. Hydroxyapatite was the only  compound detected in normal bone while osteoporotic bone contained others  crystallographic forms of calcium phosphates

Calcium phosphate crystal forms in human jaw bones of changed osteoporotic structure