Mechanical Pull-Out Test of a New Hybrid Fixture-Abutment Connection: An In Vitro Study.

摘要: Implant abutment connection was described among the main causes of peri-implant bone resorption. The aim this in vitro study to test coupling capacity, surface modification a new hybrid and influence repeated activations caused during clinical laboratory phases. A total 40 implant-abutment screw retained systems with 10°-conical internal hexagon were tested. screwed, fixed universal machine, removed pull-out performed. Test five times succession. Also Scanning Electron Microscopy (SEM) used detect microscopically modification. Analysis variance Tukey tests for statistical analysis. Pull-out reveals mean value 131.35 ± 16.52 Newton Centimeter (N·cm). For each single activation, results from first fifth were: 113.9 13.02, 126.1 12.81, 138.11 15.15, 138.8 11.90 140 12.99 N·cm. statistically significant difference between measurements an increase removal force shown. collected data supports use type connection, resulting very strong interface implant abutment. Also, activation can promote better interface.