Genetic Diseases of the Teeth. Genetic diseases are caused by gene mutations that are inherited from one or both parents. Certain genetic diseases can cause abnormalities in the teeth, affecting the rate of development of primary (baby) and secondary (adult) teeth or their physical characteristics. Often, these genetic diseases affect the normal growth and health of other parts of the body, as well.
Osmium has only a few uses. It is used to produce very hard alloys for fountain pen tips, instrument pivots, needles and electrical contacts. It is also used in the chemical industry as a catalyst. Biological role.smium has only a few uses. It is used to produce very hard alloys for fountain pen tips, instrument pivots, needles and electrical contacts. It is also used in the chemical industry as a catalyst. Biological role.
Osmium is a chemical element with the symbol Os and atomic number 76. This most expensive metals is a hard, brittle, blue-gray or blue-black transition metal in the platinum family and is the densest natural element, with a density of 22.59 g/cm3 (slightly greater than that of iridium and twice that of lead).