Retainers guide and maintain the position and alignment of teeth to create an attractive smile, and today there's quite a range to choose from. Essix retainers, in particular, are clear, slim molds that fit over your teeth. Your orthodontist might recommend an Essix retainer as the final stage in a course of orthodontic treatment, or as a complete alternative to braces. Retainers are fixed or removable and made of wires or plastic.
Kelp is largely used in traditional medicine for various conditions. 1  Kelp is a good source of glutamic acid, an amino acid responsible for its taste. 2  Kelp or kombu contains extremely high levels of iodine. 3  Another health benefit from Kelp is that it is also a source of dietary fiber.
Kelps are large seaweeds belonging to the brown algae in the order Laminariales. There are about 30 different genera. Kelp grows in underwater forests in shallow oceans, and is thought to have appeared in Miocene, 23 to 5 million years ago. The organisms require nutrient-rich water with temperatures between 6 and 14 Â°C. They are known for their high growth rate â the genera Macrocystis and Nereocystis can grow as fast as half a metre a day, ultimately reaching 30 to 80 metres. Through the 19th century, the word kelp was closely associated with seaweeds that could be burned to obtain soda ash.