The crystalline components of dental calculi: human vs. dog.
Dental calculus from the dog was found to consist principally of the calcite form of calcium carbonate mixed with small amounts of apatite; other calcium phosphates, consistently present in human calculus, were not present in dog calculus. Precipitable calcium salts from human saliva were mainly apatite; for the dog the principal precipitated salt was calcium carbonate (calcite form).
D000818:Animals; D001031:Apatites / Q000032:analysis; D002119:Calcium Carbonate / Q000032:analysis; D002130:Calcium Phosphates / Q000032:analysis; D011232:Chemical Precipitation; D003461:Crystallography; D003728:Dental Calculus / Q000032:analysis*; D004285:Dogs / Q000378:metabolism*; D006801:Humans; D012463:Saliva / Q000032:analysis; D014961:X-Ray Diffraction
D001031:Apatites; D002130:Calcium Phosphates; D002119:Calcium Carbonate