In general, stainless steel crowns are used for children's teeth because they don't require multiple dental visits to put in place and so are more cost- effective than custom-made crowns and prophylactic dental care needed to protect a tooth without a crown.
Phosphorus comes from many places. You might think that the biggest sources of phosphorus are the obvious onesâsewage treatment plants, chemical factories, and the like. But in fact, identifiable sources such as these contribute less than 20% of the phosphorus in the river.
Phosphorus Sources-Rich food in phosphorus. The most important food sources of phosphorus are whole grain cereals, milk, and fish. Vegetables such as carrots, and leafy vegetables; fruits like black currants, raspberries, raisins, and apricots are fairly good sources.Other sources of this mineral are soya beans, lentils, and other pulses and legumes.hosphorus is a mineral colleague of calcium within the body. A proper balance of phosphorus must be present in the bloodstream for good teeth and bones or nourish the brain and nerves.