A
test bench (100) for mechanical testing of a subperiosteal
implant (810), wherein the subperiosteal
implant (810) is provided with at least one
superstructure, the
test bench (100) comprising: a
machine frame (200), a mandibular model (800) to which a subperiosteal
implant (810) is fixable, and at least one force measuring unit (700) that is connected at one end to a load-bearing plate (710) fixed to the
machine frame (200) and can be releasably connected at its other end to at least one test location (P) of the subperiosteal implant (810) for force measurement. The
test bench (100) is characterised by further comprising a first shaft (613) that is rotatably connected to the
machine frame (200) via at least a first bearing (612) such that it defines a first
rotational axis (614), a second shaft (623) that is rotatably connected to the machine frame (200) via at least a second bearing (622) such that it defines a second
rotational axis (624), wherein the mandibular model (800) is attached to the first shaft (613) and to the second shaft (623) at two, first and second, mandible head portions (801, 802) thereof for rotation about the first
rotational axis (614) and the second rotational axis (624), at least one control and command unit (300) that is mounted on the machine frame (200) and has at least two, first and second, pneumatic cylinders (400, 500) provided with a first and a second
piston rod (410, 510), wherein the at least two, first and second, pneumatic cylinders (400, 500) are arranged above the mandibular model (800), and wherein the control and command unit (300) is in operative connection with the first and second pneumatic cylinders (400, 500) such that it is able to exert a force of a given magnitude on the first and second
piston rods (410, 510) to move them in a vertical direction, at least two, first and second, displacement measuring units (460, 560) mounted on the first and second pneumatic cylinders (400, 500) such that they are able to measure the vertical-direction displacement of the first and second
piston rods (410, 510) of the first and second pneumatic cylinders (400, 500); at least two, first and second, resilient members (450, 550) with a strap-like configuration that are connected to the respective lower ends of each of the first and second piston rods (410, 510) by means of a first and a second connection member (430, 530) such that the first and second resilient members (450, 550) support the mandibular model (800) by forming a loop around both sides thereof; wherein the at least one, first and second resilient members (450, 550) are operatively connected to the control and command unit (300) by way of being connected to the first and second piston rods (410, 510), and thus they are able to apply a tensile load to the mandibular model (800). The method according to the invention is carried out applying a
system according to the invention.