Evaluation of shear strength at the cement-endodontic post interface |
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| Authors: | C Maniatopoulos R M Pilliar D C Smith |
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| Affiliation: | Department of Biomaterials, University of Toronto, Faculty of Dentistry, Ont., Canada. |
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| Abstract: | ![]()
The strength characteristics of the cement-implant interface were evaluated for smooth-tapered, threaded, and porous-surfaced endodontic implants with the use of different cements. Specifically, tensile and torsional shear strengths were measured for zinc phosphate, polycarboxylate, glass-ionomer, silicophosphate, and AH-26 cements. The results indicated superior shear strength characteristics for threaded endodontic implants on axial loading. However, this strength was diminished when torsional forces were applied. Porous-surfaced endodontic implants showed strong resistance to both axial and torsional loading. |
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