abfraction
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abfraction
[ab-frak´shun]pathological loss of tooth structure owing to biomechanical forces (flexion, compression, or tension) or chemical degradation; it is most visible as V-shaped notches in the cervical area of a tooth.
abfraction
(ab-frak'shŭn),To break away.
abfraction
pathological loss of tooth structure owing to biomechanical forces or chemical degradation; it is most visible as V-shaped notches in the cervical area of the tooth.
ab·frac·tion
(ab-frak'shŭn)Pathologic loss of hard tooth substance caused by biomechanical loading forces.
[ab- + L. fractio, a breaking, fr. frango, fractum, to break]
ab·frac·tion
(ab-frak'shŭn)Loss of tooth structure considered due to combined stress on tooth, resulting from flexure and chemical factors; usually evident as a notch on the buccal surface just occlusal to the adjacent gingiva.
[ab- + L. fractio, a breaking, Fr. frango, fractum, to break]
abfraction (abfrak´shən),
n a mechanism that explains the loss of dentin tissue and tooth enamel caused by flexure and ultimate material fatigue of susceptible teeth at locations away from the point of loading. The breakdown is dependent on the magnitude, duration, frequency, and location of the forces.