RESEARCH AND EDUCATION

Load to failure of different titanium abutments for an internal hexagon implant Burak Yilmaz, DDS, PhD,a Louai G. Salaita, DDS, MS,b Jeremy D. Seidt, PhD,c Nancy L. Clelland, DMD, MS,d and Edwin A. McGlumphy, DDS, MSe Replacing single teeth with ABSTRACT implants is a predictable and Statement of problem. Several aftermarket abutments are available for a commonly used internal frequently used treatment.1-4 hexagonal connection implant. However, their load to failure performance is unknown when A number of restorative compared with the manufacturer’s abutment. options for the single unit imPurpose. The purpose of this in vitro study was to conduct a load to failure comparison of 5 plant prosthesis involve screwdifferent titanium abutments (manufacturer’s and aftermarket) for cement-retained restorations retained or cement-retained used on an implant with an internal hexagon connection. implant crowns. Historically, Material and methods. Five implants (Tapered Screw-Vent, 4.1×11.5 mm; Zimmer Dental) were screw-retained implant crowns individually secured in a loading apparatus, and 3 abutment specimens of each of the 5 were used with good longdifferent titanium abutments (Atlantis, AstraTech TiDesign, Legacy Straight Contoured, Inclusive term success and were considCustom, and Zimmer PSA) (n=15 total) were loaded at a 30-degree angle until fracture of the ered the restorative treatment implant abutment complex. Data for load to fracture were compared with analysis of variance and a Tukey-Kramer post hoc test (a=.05). of choice. However, screwretained restorations, espeResults. Significant differences were noted between the fracture loads of some abutment pairs; cially with less ideally angled Atlantis-AstraTech TiDesign, Atlantis-Legacy Straight Contoured, AstraTech TiDesign-Legacy Straight implants, are limited. In these Contoured, Inclusive Custom-AstraTech TiDesign, and Inclusive Custom-Legacy Straight Contoured (P

Load to failure of different titanium abutments for an internal hexagon implant.

Several aftermarket abutments are available for a commonly used internal hexagonal connection implant. However, their load to failure performance is u...
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