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Based on the most common causes of toothache (dentin hypersensitivity, periodontitis, and pulpitis), the key indicators become localization of the pain (whether the pain is perceived as originating in a specific tooth), thermal sensitivity, pain on biting, spontaneity of the pain, and factors that make the pain worse.
Afferent pain-receptive nerves, those that bring signals to the brain, comprise at least two kinds of fibers - a fast, relatively thick, myelinated "Aδ" fiber that carries messages quickly with intense pain, and a small, unmyelinated, slow "C" fiber that carries the longer-term throbbing and chronic pain. Large-diameter Aβ fibers are ...
Most pain resolves once the noxious stimulus is removed and the body has healed, but it may persist despite removal of the stimulus and apparent healing of the body. Sometimes pain arises in the absence of any detectable stimulus, damage or disease. [3] Pain is the most common reason for physician consultation in most developed countries.
MRI may be helpful in the identification of underlying lesions, reversible causes or serious underlying conditions such as primary presentation of a tumor or multiple sclerosis. Quantitative sensory testing (QST) , a system of detailed analysis of the somatosensory system, is frequently used in research situations to identify neuropathic pain ...
Visceral pain is pain that results from the activation of nociceptors of the thoracic, pelvic, or abdominal viscera (organs). Visceral structures are highly sensitive to distension (stretch), ischemia and inflammation , but relatively insensitive to other stimuli that normally evoke pain such as cutting or burning.
Pediatric chest pain differs from chest pain in adults because it is most often unrelated to the heart. [2] The causes of pediatric chest pain vary according to the organ or tissue in the child. that generates the pain. Generally, muscular skeletal pain, which includes costochondritis, is the reason for the emergency department visit. Pain that ...
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Because of the only relatively recent discovery of neurons and how they conduct and interpret signals, including sensations such as pain, within the body, various theories have been proposed as to the causes of pain and its role or function. Even within seemingly limited groups, such as the ancient Greeks, there were competing theories as to ...
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