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atrophy |
atrophie |
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| a progressive, acquired decrease in the size of a normally developed cell, tissue, or organ. Atrophy may result from a decrease in cell size, number of cells, or both. |
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atrophy, alveolar |
atrophie alvéolaire |
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| a depletion of the size of the alveolar process of the jaws from disuse, overuse, or pathologic disturbance of the bone. |
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atrophy, bone- |
atrophie osseuse |
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| bone resorption internally (in density) and externally (in form) (for example, of residual ridges). 2. a loss of bone substance or volume. Atrophy of bone ordinarily occurs without a corresponding change in the volume or external dimensions of bone, but the mass of bone tissue may be reduced by as much as 75%. The internal architecture of the bone gradually becomes attenuated and finally disappears. Atrophied bone is brittle and has a more spongy consistency than normal bone. In cross-section the cortex is thin, and the periosteal surface is smooth and unchanged, but the intramedullary substance is composed of a yellow, fatty, cancellous bone tissue. Bone atrophy may be systemic, regional, or local. |
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atrophy, diffuse |
atrophie diffuse |
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atrophy, diffuse - of alveolar bone |
atrophie diffuse de l'os alvéolaire |
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atrophy, disuse- |
atrophie par inactivité |
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atrophy, gingival |
atrophie gingivale |
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atrophy, horizontal |
atrophie horizontale |
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atrophy, inflammatory |
atrophie inflammatoire |
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atrophy, periodontal |
atrophie parodontale, ~ parodontaire |
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| the quantitative degenerative changes that occur in the attachment apparatus and supporting bone of a tooth as a result of disease or disuse. When a tooth loses its antagonist, osteoporotic changes in the supporting bone, an afunctional change in the direction of periodontal fibers, and a narrowing of the periodontal membrane space occur. |
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atrophy, pressure- |
atrophie due à la pression |
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| the tissue destruction and reduction in size as a consequence of prolonged or continued pressure on a local area or group of cells. |
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atrophy, senile |
atrophie sénile |
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| the atrophy or diminution of all tissues characteristic of advanced age. |
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atrophy, vertical |
atrophie verticale |
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hemiatrophy |
hémiatrophie |
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| atrophy of one half of the body, an organ, or a part (for example, facial hemiatrophy). |
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hemiatrophy of the face |
hémiatrophie de la face |
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