Fig. 2

Overview of experimental setup mechanical device, which converts rotation into linear motion moves the test products into the different artificial interdental areas. The insert on the upper right corner illustrates the four different morphologies of artificial interdental areas (from left: isosceles triangle, concave space of 3 mm height, concave space of 5 mm height and convex space; all shown morphologic in size 1.3 mm. The digital load cell records the applied force longitudinally and documents it in a table chronological (not shown), control unit for motion and load cell and the electric transformer