Escherichia coli Cellular Activity and Frontal Trizonal Evaluation of Microspace Between Implants and Abutments Under Calibrated Cyclic Stress.

Aim: To evaluate microspace and microleakage between implant and abutments subjected to pre- and post-calibrated cyclic stress.

Materials And Methods: Twelve screw-retained implant prostheses with BioHPP polyetheretherketone (PEEK) abutment (Noris Dental Implant System Ltd., Nesher, Israel) (Group I) and 12 screw-retained implant prostheses with computer-assisted design/computer-assisted manufacturing (CAD/CAM) milled zirconia abutment (DentGallop, Houston, TX, USA) (Group II) were connected to their respective implant, and the prosthetic screw was torqued to 30N/cm (Noris).

Comparative evaluation of the wear resistance of two different implant abutment materials after cyclic loading - An in vitro study.

Purpose: To comparatively evaluate the wear resistance of two different implant abutment materials with titanium implants after cyclic loading.

Methodology: Two groups utilizing 20 titanium implants secured in resin blocks, in which 10 titanium implants are connected with titanium abutments (Group I, = 10) and the other 10 titanium implants are connected with Polyether ether Ketone (PEEK) abutments (Group II, = 10). Abutments are cyclically loaded for 550,000 cycles.