Retention Forces between Titanium and Zirconia Components of Two‐Part Implant Abutments with Different Techniques of Surface Modification

摘要: Background The adhesive connection between titanium base and zirconia coping of two-part abutments may be responsible for the failure rate. A high mechanical stability both components is essential long-term success. Purpose The aim present in-vitro study was to evaluate influence different surface modification techniques resin-based luting agents on retention forces in implant abutments. Materials Methods A total 120 with a bonded were investigated. Two (Panavia F 2.0 RelyX Unicem) six modifications used fix these components, resulting 12 test groups (n = 10). The specimens mechanically pretreated aluminium oxide blasting combination application two activating primers (Alloy Primer, Clearfil Ceramic Primer) or tribological conditioning (Rocatec), respectively. All underwent 10,000 thermal cycles 5°C 55°C moist environment. pull-off then conducted determine statistical analysis performed (two-way anova). Finally, fracture surfaces analyzed by light scanning electron microscopy. Results No significant differences found Panavia Unicem. However, significantly influenced technique (p < 0.001). For agents, highest when adhesion bases copings blasting, Primer. Conclusion Surface crucially abutments. should sandblasting. Moreover, phosphate-based primer serves enhance components.