Fluoride.
D000397:Air Pollution; D001842:Bone and Bones / Q000378:metabolism; D002113:Calcification, Physiologic / Q000187:drug effects; D002118:Calcium / Q000378:metabolism; D002136:Calcium, Dietary / Q000627:therapeutic use; D002648:Child; D005457:Fluoridation; D005459:Fluorides / Q000009:adverse effects*; D006801:Humans; D006961:Hyperparathyroidism / Q000139:chemically induced; D010024:Osteoporosis / Q000139:chemically induced / Q000517:prevention & control; D010026:Osteosclerosis / Q000517:prevention & control; D014807:Vitamin D / Q000627:therapeutic use
D002136:Calcium, Dietary; D014807:Vitamin D; D005459:Fluorides; D002118:Calcium