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Classification. An internationally agreed classification formulated at the World Workshop in Clinical Periodontics in 1989 divided periodontal diseases into 5 groups: adult periodontitis, early-onset periodontitis, periodontitis associated with systemic disease, necrotizing ulcerative periodontitis and refractory periodontitis. [ 1] In 1993 at ...
This is a list of chewing gum brands in the world. Chewing gum is a type of gum made for chewing, and dates back at least 5,000 years. Modern chewing gum was originally made of chicle, a natural latex. By the 1960s, chicle was replaced by butadiene-based synthetic rubber which is cheaper to manufacture. Most chewing gums are considered polymers ...
Chewing gum. Chewing gum is a soft, cohesive substance designed to be chewed without being swallowed. Modern chewing gum is composed of gum base, sweeteners, softeners/ plasticizers, flavors, colors, and, typically, a hard or powdered polyol coating. [ 1]
Periodontal disease, also known as gum disease, is a set of inflammatory conditions affecting the tissues surrounding the teeth. [ 5] In its early stage, called gingivitis, the gums become swollen and red and may bleed. [ 5] It is considered the main cause of tooth loss for adults worldwide. [ 7][ 8] In its more serious form, called ...
Gum tree. Gum tree is the common name of several trees and plants: Eucalypteae, particularly: Eucalyptus, which includes the majority of species of gum trees. Corymbia, which includes the ghost gums and spotted gums. Angophora, which includes Angophora costata Sydney red gum. Nyssa sylvatica, common names include blackgum, sour gum.
Humans have used natural gums for various purposes, including chewing and the manufacturing of a wide range of products – such as varnish and lacquerware.Before the invention of synthetic equivalents, trade in gum formed part of the economy in places such as the Arabian peninsula (whence the name "gum arabic"), West Africa, [3] East Africa and northern New Zealand ().
Eucalyptus tereticornis, commonly known as forest red gum, blue gum or red irongum, [3] is a species of tree that is native to eastern Australia and southern New Guinea. It has smooth bark, lance-shaped to curved adult leaves, flower buds in groups of seven, nine or eleven, white flowers and hemispherical fruit.
Eucalyptus viminalis, commonly known as the manna gum, white gum or ribbon gum, [3] is a species of small to very tall tree that is endemic to south-eastern Australia. It has smooth bark, sometimes with rough bark near the base, lance-shaped to curved adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped or hemispherical fruit.