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Orthodontic Expander
A palatal expander is a device in the field of orthodontics which is used to widen the upper jaw (maxilla) so that the bottom and upper teeth will fit together better. This is a common orthodontic procedure. Although the use of an expander is most common in children and adolescents 8-18 years of age, it can also be used in adults, although expansion is slightly more uncomfortable and takes longer. A patient who would rather not wait several months for the end result by a palatal expander may be able to opt for a surgical separation of the maxilla. Use of a palatal expander is most often followed by dental braces, braces to then straighten the teeth. It is believed that expansion therapy should be started in patients either before or during their peak growth spurt. To obtain maximal skeletal changes, the therapy is typically initiated at a very early age. Expansion therapy performed after the peak growth spurt will lead to more dental changes than skeletal which leads to tipping of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dental Palatal Expander
Dental may refer to: * Dental consonant, in phonetics * Dental Records, an independent UK record label * Dentistry, oral medicine * Teeth See also * * Dental care (other) * Dentist (other) A dentist is a practitioner of dentistry—a branch of medicine pertaining to the oral cavity. Dentist may also refer to: * The Dentists, a British band active in the 1980s and 1990s * ''The Dentist ''The Dentist'' is a 1996 American slasher f ... * Tooth (other) {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthodontics
Orthodontics is a dentistry specialty that addresses the diagnosis, prevention, management, and correction of mal-positioned teeth and jaws, and misaligned bite patterns. It may also address the modification of facial growth, known as dentofacial orthopedics. Abnormal alignment of the teeth and jaws is very common. Nearly 50% of the developed world's population, according to the American Association of Orthodontics, has malocclusions severe enough to benefit from orthodontic treatment: although this figure decreases to less than 10% according to the same AAO statement when referring to medically necessary orthodontics. However, conclusive scientific evidence for the health benefits of orthodontic treatment is lacking, although patients with completed orthodontic treatment have reported a higher quality of life than that of untreated patients undergoing orthodontic treatment. Treatment may require several months to a few years, and entails using dental braces and other appliances t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Palatal Expanders
This article lists different types of expanders that are available for the process of palatal expansion in the field of orthodontics. There can be many types of transverse dimension appliances. These appliances can be used to achieve expansion in the maxillary arch; there are devices for mandibular expansion or lower expansion too. In past many years, different types of appliances have been made. These types are: tissue-borne, tooth-borne, slow maxillary expansion, rapid maxillary expansion, and bone-anchored. Types of expanders Tissue-borne expander Tissue supported expanders allow the forces to be applied directly to the tissues of palatal mucosa instead of teeth. The most common type of tissue-borne expander is known as the Haas Appliance. This appliance was popularized by Andrew Haas in 1961. This appliance involves bands placed on maxillary first premolar and first molars on each side. Haas appliance has palatal acrylic that is in contact with palatal mucosa. Inside the ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Orthodontic Functional Appliances
This is a comprehensive list of functional appliances that are used in the field of orthodontics. The functional appliances can be divided into fixed and removable. The fixed functional appliances have to be bonded to the teeth by an orthodontist. A removable functional appliance does not need to be bonded on the teeth and can be removed by the patient. A removable appliance is usually used by patients who have high degree of compliance with their orthodontic treatment. Fixed appliances are able to produce very accurate movement in the teeth Both fixed and removable functional appliances can be used to correct a malocclusion in three planes: Anterior-Posterior, Vertical and Transverse. In the Anterior-Posterior dimension, appliances such as Class II and Class III are used. Appliances used in transverse dimension are utilized to expand either the maxillary or the mandibular arch. Appliances used in the vertical dimension are used to correct open or deep bite. History It is impo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyrax Expander
Hyraxes (), also called dassies, are small, thickset, herbivorous mammals in the order Hyracoidea. Hyraxes are well-furred, rotund animals with short tails. Typically, they measure between long and weigh between . They are superficially similar to pikas and marmots, but are more closely related to elephants and sea cows. Hyraxes have a life span from 9 to 14 years. Five extant species are recognised: the rock hyrax (''Procavia capensis'') and the yellow-spotted rock hyrax (''Heterohyrax brucei''), which both live on rock outcrops, including cliffs in Ethiopia and isolated granite outcrops called koppies in southern Africa; the western tree hyrax (''Dendrohyrax dorsalis''), southern tree hyrax (''D. arboreus''), and eastern tree hyrax (''D. validus''). Their distribution is limited to Africa, except for ''P. capensis'', which is also found in the Middle East. Characteristics Hyraxes retain or have redeveloped a number of primitive mammalian characteristics; in particular, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quad Helix
A quad helix (or quadhelix) is an orthodontic appliance for the upper teeth that is cemented in the mouth. It is attached to the molars by 2 bands and has two or four active helix A helix () is a shape like a corkscrew or spiral staircase. It is a type of smooth space curve with tangent lines at a constant angle to a fixed axis. Helices are important in biology, as the DNA molecule is formed as two intertwined helices, ... springs that widen the arch of the mouth to make room for crowded teeth, or correct a posterior cross-bite, where lower teeth are buccal (outer) than upper teeth. It is usually made from 38 mil stainless steel wire and is primarily indicated in mixed dentition, cleft patients and those that have performed the act of thumbsucking. A variety of this appliance is inserted into attachments that are welded to the bands. In this way the orthodontist can adjust the appliance without removing the bands. The precursor to the quad-helix was the coffin spring. Simil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert M
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of '' Hruod'' ( non, Hróðr) "fame, glory, honour, praise, renown" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin. It is also in use as a surname. Another commonly used form of the name is Rupert. After becoming widely used in Continental Europe it entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta. The Italian, Portuguese, and Spanish form is Roberto. Robert is also a common name in many Germanic languages, including English, German, Dutch, Norwegian, Swedish, Scots, Danish, and Icelandic. It can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Coffin
Walter Coffin (1784 – 15 February 1867) was a Welsh coalowner and Member of Parliament. Coffin is recognised as the first person to exploit the rich coal fields of the Rhondda Valley on an industrial scale, becoming one of the wealthiest coal mine owners in the world. Early life Born in 1784 he was the second son of Walter Coffin, the founder of a tanning business in Bridgend, and his second wife Anne Morgan. Coffin was descended from a well known Bridgend family, the Prices of Ty'n Ton, into which his grandfather, an owner of an estate in Selworthy, had married. Coffin was educated at Cowbridge Grammar School and later at a nonconformist academy in Exeter; in 1804 he returned to Wales to join the family business. In 1791 his father had purchased several farmsteads in the parish of Llantrisant, including the area of Dinas Uchef Farm from William Humphries. In 1809, at the age of 24 and bored with the tanning industry, Walter Coffin the younger set out to prospect for coal at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dental Cosmos
The ''Journal of the American Dental Association'' is a monthly peer-reviewed medical journal on dentistry published by the American Dental Association. It is freely available to the public after a one-year embargo. The journal was first published in 1913 as ''Official Bulletin of the National Dental Association''. It was renamed ''The Journal of the National Dental Association'' in 1915, and ''Journal of the American Dental Association'' in 1922. It merged with Dental Cosmos in 1936. Marjorie Jeffcoat became the first female editor of the journal in 2001.Introducing your new JADA editor, Dr. Michael Glick ''JADA'' 2005;136(1):12-13. The editor is Dr. Jeffrey Platt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emerson C
Emerson may refer to: People * Emerson (surname), a surname (and list of people with that name) * Emerson (given name), a given name (and list of people with that name) Places Australia *Emerson Crossing, a place in Adelaide Canada * Emerson, Manitoba **Pembina–Emerson Border Crossing ** Emerson (electoral district), a former electoral division in Manitoba * Emerson, Weldford Parish, New Brunswick United Kingdom * Emerson's Green or Emersons Green, South Gloucestershire, England United States * Emerson (Gary), a neighborhood in north-central Gary, Indiana * Emerson, Arkansas * Emerson, Georgia * Emerson, Iowa * Emerson, Nebraska * Emerson, New Jersey * Emerson, Ohio * Emerson, West Virginia * Emerson Hill, Staten Island, a neighborhood of New York City * Emerson Township, Michigan * Emerson Township, Dixon County, Nebraska * Emerson Township, Harlan County, Nebraska Institutions * Emerson College, Boston, Massachusetts * Emerson Hospital, Concord, Massachusetts * Emerson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygomatic Buttress
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Zygomatic (from Greek ''ζύγωμα'' (''zygōma''), "yoke") may refer to: * Zygomatic arch * Zygomatic bone * Zygomatic branches of the facial nerve * Zygomaticus major muscle * Zygomaticus minor muscle * Zygomatic nerve * Zygomatic process ** Zygomatic process of frontal bone ** Zygomatic process of maxilla ** Zygomatic process of temporal bone The zygomatic processes are three processes (protrusions) from other bones of the skull which each articulate with the zygomatic bone. The three processes are: * Zygomatic process of frontal bone from the frontal bone * Zygomatic process of max ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saliva
Saliva (commonly referred to as spit) is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be extracted), enzymes (such as lipase and amylase), antimicrobial agents (such as secretory IgA, and lysozymes). The enzymes found in saliva are essential in beginning the process of digestion of dietary starches and fats. These enzymes also play a role in breaking down food particles entrapped within dental crevices, thus protecting teeth from bacterial decay. Saliva also performs a lubricating function, wetting food and permitting the initiation of swallowing, and protecting the oral mucosa from drying out. Various animal species have special uses for saliva that go beyond predigestion. Some swifts use their gummy saliva to build nests. ''Aerodramus'' nests form the basis of bird's nest soup. Cobras, vipers, and certain other membe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
