abfraction [ab-frak´shun]
abfraction (abfrak´sh
n),
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 (abfrak´sh
n),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.
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