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Orotic Acid
|
D009963 |
[An intermediate product in PYRIMIDINE synthesis which plays a role in chemical conversions between DIHYDROFOLATE and TETRAHYDROFOLATE.
] |
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Orotidine-5'-Phosphate Decarboxylase
|
D009964 |
[Orotidine-5'-phosphate carboxy-lyase. Catalyzes the decarboxylation of orotidylic acid to yield uridylic acid in the final step of the pyrimidine nucleotide biosynthesis pathway. EC 4.1.1.23.
] |
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Orphan Drug Production
|
D009965 |
[Production of drugs or biologicals which are unlikely to be manufactured by private industry unless special incentives are provided by others.
] |
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Orphan Nuclear Receptors
|
D057093 |
[A broad category of receptor-like proteins that may play a role in transcriptional-regulation in the CELL NUCLEUS. Many of these proteins are similar in structure to known NUCLEAR RECEPTORS but appear to lack a functional ligand-binding domain, while in other cases the specific ligands have yet to be identified.
] |
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Orphanages
|
D019372 |
[Institutions for the housing and care of orphans, foundlings, and abandoned children. They have existed as such since the medieval period but the heading is applicable to such usage also in modern parlance.
] |
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Orphenadrine
|
D009966 |
[A muscarinic antagonist used to treat drug-induced parkinsonism and to relieve pain from muscle spasm.
] |
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Orthobunyavirus
|
D016851 |
[A genus of the family BUNYAVIRIDAE containing over 150 viruses, most of which are transmitted by mosquitoes or flies. They are arranged in groups defined by serological criteria, each now named for the original reference species (previously called serogroups). Many species have multiple serotypes or strains.
] |
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Orthodontic Anchorage Procedures
|
D052280 |
[Attachment of orthodontic devices and materials to the MOUTH area for support and to provide a counterforce to orthodontic forces.
] |
|
Orthodontic Appliance Design
|
D016382 |
[The planning, calculation, and creation of an apparatus for the purpose of correcting the placement or straightening of teeth.
] |
|
Orthodontic Appliances
|
D009967 |
[Devices used for influencing tooth position. Orthodontic appliances may be classified as fixed or removable, active or retaining, and intraoral or extraoral. (Boucher's Clinical Dental Terminology, 4th ed, p19)
] |
|
Orthodontic Appliances, Fixed
|
D000077744 |
[ORTHODONTIC APPLIANCES attached to the teeth by adhesive material which cannot be removed from the mouth by the patient. These devices apply force to the teeth and supporting structures, thereby producing changes which control their growth and development.
] |
|
Orthodontic Appliances, Functional
|
D017289 |
[Loose, usually removable intra-oral devices which alter the muscle forces against the teeth and craniofacial skeleton. These are dynamic appliances which depend on altered neuromuscular action to effect bony growth and occlusal development. They are usually used in mixed dentition to treat pediatric malocclusions. (ADA, 1992)
] |
|
Orthodontic Appliances, Removable
|
D009968 |
[Dental devices such as RETAINERS, ORTHODONTIC used to improve gaps in teeth and structure of the jaws. These devices can be removed and reinserted at will.
] |
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Orthodontic Brackets
|
D016910 |
[Small metal or ceramic attachments used to fasten an arch wire. These attachments are soldered or welded to an orthodontic band or cemented directly onto the teeth. Bowles brackets, edgewise brackets, multiphase brackets, ribbon arch brackets, twin-wire brackets, and universal brackets are all types of orthodontic brackets.
] |
|
Orthodontic Extrusion
|
D050793 |
[Orthodontic movement in the coronal direction achieved by outward tension on the PERIODONTAL LIGAMENT. It does not include the operative procedure that CROWN LENGTHENING involves.
] |
|
Orthodontic Friction
|
D000070297 |
[Physical resistance to motion between dental surfaces.
] |
|
Orthodontic Retainers
|
D018704 |
[Orthodontic appliances, fixed or removable, used to maintain teeth in corrected positions during the period of functional adaptation following corrective treatment. These appliances are also used to maintain the positions of the teeth and jaws gained by orthodontic procedures. (From Zwemer, Boucher's Clinical Dental Terminology, 4th ed, p263)
] |
|
Orthodontic Space Closure
|
D019516 |
[Therapeutic closure of spaces caused by the extraction of teeth, the congenital absence of teeth, or the excessive space between teeth.
] |
|
Orthodontic Wires
|
D009969 |
[Wires of various dimensions and grades made of stainless steel or precious metal. They are used in orthodontic treatment.
] |
|
Orthodontics
|
D009970 |
[A dental specialty concerned with the prevention and correction of dental and oral anomalies (malocclusion).
] |
