The failure of self-threading retentive pins under tensile load.
The resistance of self-threading retentive pins to failure in tension is due primarily to residual compressive forces in dentin generated during pin insertion. Examination of load-elongation curves and photomicrographs of samples also indicated that the interlocking of pin threads with dentin provides only a minor contribution to the peak retentive load.
D003772:Dental Pins; D003799:Dental Stress Analysis; D003804:Dentin / Q000502:physiology; D006801:Humans; D013499:Surface Properties; D013718:Tensile Strength