Category: A

  • Ameloblastic odontoma

    A neoplasm that contains enamel, dentin, and odontogenic tissue that does not develop to form enamel.  

  • Odds

    In statistics, the probability that an event may appear or occur. This probability is estimated from known rates of occurrence of the event in a specific setting, e.g. , f rom the known number of patients with a particular disease on a particular island. In practice most patients do not live on islands, and many…

  • Arterial occlusion

    A blockage of blood flow through an artery. It may be acute or chronic and occurs, for example, in coronary or in peripheral arteries. Patients with acute arterial occlusion have severe pain (e.g., angina pectoris), decreased or absent pulses, and mottling of the skin of an affected extremity. The occlusion is removed and blood flow…

  • Anatomical occlusion

    In dentistry, an occlusion in which the posterior teeth of a denture have masticatory surfaces that resemble natural, healthy dentition and articulate with the surfaces of similar or opposing teeth. The opposing teeth may be artificial or natural.  

  • Adjusted occlusion

    In dentistry, a colloquial term for equilibration.  

  • Aural nystagmus

    Nystagmus due to a disorder in the labyrinth of the ear. Eye movement is spasmodic.  

  • Advanced practice nursing

    Primary medical care provided by nurses who have been prepared as practitioners and are competent to provide that level of care. These practitioners may act independently or under the supervision of a physician.  

  • Advanced practice nurse

    A registered nurse with additional education, skill, and specialization in various fields of medicine.  

  • Auditory nucleus

    A group of neuron cell bodies where the auditory nerves arise.  

  • Atomic nucleus

    The heavy, positively charged, central part of an atom, which contains protons, neutrons, and most of the atomic mass. The central area of the atom, made up of the protons and neutrons.