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diminution in size of the supportive tissues of the teeth due to lack of function, reduced blood supply, or unknown causes.
Farlex Partner Medical Dictionary © Farlex 2012
al·ve·o·lar at·ro·phy(al-vēŏ-lăr atrŏ-fē)
Loss or diminution of supportive alveolar bone due to loss of teeth or to function, trauma, reduced blood supply, or unknown cause.
Medical Dictionary for the Dental Professions © Farlex 2012