A comparison of two post systems under applied compressive-shear loads.
This study compared a new parallel-tapering, threaded, split-shank post with a well-accepted parallel serrated post under applied compressive-shear loads. The posts were placed in paired, contralateral human teeth to attempt to minimize variation in the tooth model. Both initial and ultimate failure modes were observed, and the clinical significance reported. The Flexi-post system compared favorably with the Para-Post system under the conditions of this research.
Greenfeld
R S
RS
Department of Restorative Dentistry, University of British Columbia, Faculty of Dentistry, Vancouver.
Roydhouse
R H
RH
Marshall
F J
FJ
Schoner
B
B
D003442:Crowns; D003799:Dental Stress Analysis; D003779:Denture Design; D006801:Humans; D008422:Materials Testing; D011176:Post and Core Technique; D011475:Prosthesis Failure; D013314:Stress, Mechanical; D013718:Tensile Strength; D014082:Tooth Fractures / Q000503:physiopathology; D014092:Tooth Root / Q000293:injuries; D015036:Zinc Phosphate Cement
D015036:Zinc Phosphate Cement