Devices >> Edge-Strength’ test device
Edge-Strength’ test device
Código: OD177Designed for edge strength testing, the OD177 device enables the standardized positioning of a specimen (a 6.0 mm × 4.0 mm cylinder) within a universal testing machine, simulating the chipping failure observed clinically.
Its key features and components include:
- A 2 mm-diameter stainless steel pin, positioned concentrically atop a larger, 6 mm-diameter cylinder made of the same material.
- Limiting pins: Two 1 mm-diameter pins, positioned diametrically opposite each other and adjacent to the central pin, which serve as stops to accurately position the specimen beneath the device.
- Contact area: This configuration creates an eccentric, elliptical contact area of 1.4 mm² located at the edge of the cylindrical specimen (6 mm × 4 mm).
- Mounting and loading direction: The device can be attached to any universal testing machine (though some adaptations may be required), with the test load applied in compression.
- By replacing traditional pointed indenters with this pin-based jig, the device facilitates a standardized, simple testing method capable of evaluating a material's susceptibility to marginal chipping in restorations.
