Category: O
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Oligoarthritis
An inflammation of two, three or four joints. Inflammation that involves four or fewer joints. Inflammation involving a single joint is known as monoarticular arthritis, and that involving more than four joints as polyarthritis.
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Oligonucleosome
Type of nucleosome that form the fundamental repeating units of eukaryotic chromatin.
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Odontopathy
Any disease of the teeth.
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Occulsion
Closure or blockage (as of a blood vessel).
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Occlusal vertical dimension
The vertical dimension of two designated points on the face when the teeth are in contact in centric occlusion.
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Osseous surgery
A surgical procedure intended to achieve long‐term periodontal health by osteoplasty or ostectomy to reshape and recontour the alveolar bone resulting in physiologic form and contour of the alveolar bone and overlying soft tissues.
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Oxycodone
Semi‐synthetic opioid analgesic, recommended for moderate to severe pain. It may be used as a single agent or combined with products such as acetaminophen, aspirin, or ibuprofen. A narcotic pain reliever. Oxycodone (OxyContin, Percocet, Percodan, Roxicodone, Tylox, and others) is prescribed for moderate to severe pain. Oxycodone is more effective in episodes of acute rather…
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Oxidized surface treatment
Modification of the surface properties of titanium dental implants by alteration of the titanium oxide layer thickness.
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Oxide surfaces
Oxygen‐containing compounds and complexes formed at the surface of an absorbent. In the case of titanium dental implants, oxidation of the implant surface creates titanium oxide of various chemical formulas through exposure to air or through treatment of the surface at the time of fabrication.
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Oxidating surface treatment
Creation of metallic oxides on the surface of metal. In the case of titanium, oxidation occurs immediately upon exposure to air. As a result, dental implants made of titanium are coated with titanium oxides critical for the success of osseointegration.