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Retainer (orthodontics)
Orthodontic retainers are custom-made devices, usually made of wires or clear plastic, that hold teeth in position after surgery or any method of realigning teeth. Once a phase of orthodontic treatment has been completed to straighten teeth, there remains a lifelong risk of relapse (a tendency for teeth to return to their original position) due to a number of factors: recoil of periodontal fibres, pressure from surrounding soft tissues, the occlusion and patient’s continued growth and development. By using retainers to hold the teeth in their new position for a length of time, the surrounding periodontal fibres adapt to changes in the bone which can help minimize any changes to the final tooth position after the completion of orthodontic treatment. Retainers may also be used to treat overjet In dentistry, overjet is the extent of horizontal ( anterior-posterior) overlap of the maxillary central incisors over the mandibular central incisors. In class II (division I) malocc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retainer
Retainer may refer to: * Retainer (orthodontics), devices for teeth * RFA Retainer (A329), RFA ''Retainer'' (A329), a ship * Retainers in early China, a social group in early China Employment * Retainer agreement, a contract in which an employer pays in advance for work, to be secured or specified later, when required * Domestic worker or servant, especially one who has been with one family for a long time (chiefly British English) * Affinity (medieval), also Retinue, a person or group gathered around in the service of a lord See also * RETAIN, a mainframe-based database system * Human sacrifice, Retainer sacrifice, the sacrifice of a human servant * Retainer medicine, a relationship between a patient and a primary care physician in which the patient pays an annual fee or retainer * Retention (other) * * {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retainers
Retainer may refer to: * Retainer (orthodontics), devices for teeth * RFA ''Retainer'' (A329), a ship * Retainers in early China, a social group in early China Employment * Retainer agreement, a contract in which an employer pays in advance for work, to be secured or specified later, when required * Domestic worker or servant, especially one who has been with one family for a long time (chiefly British English) * Affinity (medieval), also Retinue, a person or group gathered around in the service of a lord See also * RETAIN RETAIN is a mainframe based Database management system, database system, accessed via IBM 3270 terminals (or more likely, emulators), used internally within IBM providing service support to IBM field personnel and customers. The acronym RETAIN sta ..., a mainframe-based database system * Retainer sacrifice, the sacrifice of a human servant * Retainer medicine, a relationship between a patient and a primary care physician in which the patient pays an annual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthodontics
Orthodontics (also referred to as orthodontia) is a dentistry specialty that addresses the diagnosis, prevention, management, and correction of mal-positioned teeth and jaws, as well as 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. The approximate worldwide prevalence of malocclusion was as high as 56%. However, conclusive evidence-based medicine, scientific evidence for the Health benefit (medicine), health benefits of orthodontic treatment is lacking, although patients with completed treatment have reported a higher quality of life than that of untreated patients undergoing orthodontic treatment. The main reason for the prevalence of these malocclusions is diets with less fresh fruit and vegetables and overall softer foods in childhood, causing smaller jaws with less room for the teeth to erupt. Treatment may require several months to a few years and enta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Tooth
Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are great apes characterized by their hairlessness, bipedalism, and high intelligence. Humans have large brains, enabling more advanced cognitive skills that facilitate successful adaptation to varied environments, development of sophisticated tools, and formation of complex social structures and civilizations. Humans are highly social, with individual humans tending to belong to a multi-layered network of distinct social groups — from families and peer groups to corporations and political states. As such, social interactions between humans have established a wide variety of values, social norms, languages, and traditions (collectively termed institutions), each of which bolsters human society. Humans are also highly curious: the desire to understand and influence phenomena has motivated humanity' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periodontal Fiber
The periodontal ligament, commonly abbreviated as the PDL, are a group of specialized connective tissue fibers that essentially attach a tooth to the alveolar bone within which they sit. It inserts into root cementum on one side and onto alveolar bone on the other. Structure The PDL consists of principal fibers, loose connective tissue, blast and clast cells, oxytalan fibers and cell rest of Malassez. Alveolodental ligament The main principal fiber group is the alveolodental ligament, which consists of five fiber subgroups: alveolar crest, horizontal, oblique, apical, and interradicular on multirooted teeth. Principal fibers other than the alveolodental ligament are the transseptal fibers. All these fibers help the tooth withstand the naturally substantial compressive forces that occur during chewing and remain embedded in the bone. The ends of the principal fibers that are within either cementum or alveolar bone proper are considered Sharpey fibers. * Alveolar crest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occlusion (dentistry)
Occlusion, in a dental context, means simply the contact between teeth. More technically, it is the relationship between the maxillary (upper) and mandibular (lower) teeth when they approach each other, as occurs during chewing or at rest. Static occlusion refers to contact between teeth when the jaw is closed and stationary, while dynamic occlusion refers to occlusal contacts made when the jaw is moving. The masticatory system also involves the periodontium, the TMJ (and other skeletal components) and the neuromusculature, therefore the tooth contacts should not be looked at in isolation, but in relation to the overall masticatory system. Anatomy of Masticatory System One cannot fully understand occlusion without an in depth understanding of the anatomy including that of the teeth, TMJ, musculature surrounding this and the skeletal components. The Dentition and Surrounding Structures The human dentition consists of 32 permanent teeth and these are distributed between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overjet
In dentistry, overjet is the extent of horizontal ( anterior-posterior) overlap of the maxillary central incisors over the mandibular central incisors. In class II (division I) malocclusion the overjet is increased as the maxillary central incisors are protruded. Class II Division I is an incisal classification of malocclusion where the incisal edge of the mandibular incisors lie posterior to the cingulum plateau of the maxillary incisors with normal or proclined maxillary incisors (British Standards Index, 1983). There is always an associated increase in overjet. In the Class II Division 2 incisal classification of malocclusion, the lower incisors occlude posterior to the cingulum plateau of the upper incisors and the upper central incisors are retroclined. The overjet is usually minimal but it may be increased. Signs and symptoms Class II Div I :Benefits associated with orthodontic treatment include a reduction in the susceptibility to caries, periodontal disease and tempor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles A
Charles is a masculine given name predominantly found in English and French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic name (in runic alphabet) or ''*karilaz'' (in Latin alphabet), whose meaning was "free man". The Old English descendant of this word was '' Ċearl'' or ''Ċeorl'', as the name of King Cearl of Mercia, that disappeared after the Norman conquest of England. The name was notably borne by Charlemagne (Charles the Great), and was at the time Latinized as ''Karolus'' (as in ''Vita Karoli Magni''), later also as '' Carolus''. Etymology The name's etymology is a Common Germanic noun ''*karilaz'' meaning "free man", which survives in English as churl (James (wikt:Appendix:Proto-Indo-European/ǵerh₂-">ĝer-, where the ĝ is a palatal consonant, meaning "to rub; to be old; grain." An old man has been worn away and is now grey with age. In some Slavic languages, the name ''Drago (given name), Drago'' (and variants: ''Drago ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SMART Retainer
The SMART Retainer is a small micro sensor which is imbedded in a traditional orthodontic retainer. The sensor monitors how often the retainer is being worn, and the information is loaded onto the orthodontist's computer via a reader. Description The micro sensor was created to help parents and orthodontists monitor retainer use after braces are removed. The smart retainer chip is about the size of a shirt button and provides detailed information about the chip's environmental surroundings. In the United States a smart retainer sensor is exclusively provided by orthodontists who have signed up to be providers, and should retail for around $100. The SMART Retainer was featured on the May 15 episode of ''The Today Show ''Today'' (also called ''The Today Show'') is an American morning television show that airs weekdays from 7:00 a.m. to 11:00 a.m. on NBC. The program debuted on January 14, 1952. It was the first of its genre on American television ...''. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dental Equipment
Dental instruments are tools that dental professionals use to provide dental treatment. They include tools to examine, manipulate, treat, restore, and remove teeth and surrounding oral structures. Examination instruments These tools allow dental professionals to manipulate tissues for better visual access during treatment or during dental examination. Dental mirror The dentist or dental auxiliary use dental mirrors to view a mirror image of the teeth in locations of the mouth where visibility is difficult or impossible. They also are used for reflecting light onto desired surfaces, and for retraction of soft tissues to improve access or vision. Probes * Dental explorer (sickle probe) *Periodontal probe * Explorer Probs Retractors *Cheek retractor *Dental mirror *Lip retractor *Mouth prop *Tongue retractor Local anesthesia *Dental anesthesia and dental syringe Anesthesia is classified into three types: local, regional, and general, each of which affects the nervous system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthodontic Appliances
Orthodontic technology is a specialty of dental technology that is concerned with the design and fabrication of dental appliances for the treatment of malocclusions, which may be a result of tooth irregularity, disproportionate jaw relationships, or both. There are three main types of orthodontic appliances: active, passive and functional. All these types can be fixed or removable. Active appliances An active appliance is a device used to apply forces to the teeth to change the relationship of the teeth. Removable active appliances Removable active appliances are intended for simple tipping movements. Use of removable appliances in modern orthodontics is much more limited than in the past due to their various shortcomings. * Expansion and labial segment alignment appliance (ELSAA) Fixed active appliances Edward Angle, regarded as the father of American orthodontics, developed many universal fixed active appliances, unifying orthodontic practice. * Begg lightwire applian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
