ISO 14801 Fatigue Testing of Pre-Angled Endosseous
Dental Implants in a Fluid Bath
Pre-Angled dental implants are designed to help dental surgeons make the best use of the existing bone or to remove the need for bone grafting to occur, while providing a secure restorative platform.
The latest revision of the ISO 14801 standard for fatigue testing specifies a method for testing of these pre-angled dental implants in a laboratory situation. The standard requires the implant to be aligned so that the angle of loading is 10° greater than between the implant axis and the axis of the angled portion of the connecting part.
With an array of implant sizes and geometries, angled dental implants can be mounted into a variable angle fixture for testing to the ISO 14801 standard. The fixture needs to ensure that the mounting does not over constraint the implant nor generate large lateral forces that can damage the load cell or the testing machine. Pre-angled dental implants should be tested in ambient air using a frequency of 15 Hz.
As with straight dental implants, pre-angled dental implants can also be tested in an aqueous environment, if corrosion fatigue is expected to occur. The fixture can be mounted within a fluid bath to test the implant in saline solution or another physiological medium and the temperature maintained at 37 °C.
Our E1000 or E3000 ElectroPuls® linear motor test instruments provide an ideal platform for testing and characterizing dental implant performance. If studies of torque required for dental implants need to be undertaken, we suggest using the ElectroPuls E3000 Linear-Torsion test instrument to conduct compression and torsion testing.
We recommend that you review the standard to fully understand its requirements.
ISO 14801 “Dentistry – Implants – Dynamic fatigue test for endosseous dental implants” specifies the procedure for fatigue testing dental implants. Dental implants are designed by various manufacturers and are of different geometries and sizes depending on where they are placed within the mouth. ISO 14801 aims to establish a benchmark for in vitro testing of implants to compare different implant designs and geometries. It does not begin to replicate the complex conditions implants are subjected to when implanted within the oral cavity. Instron’s latest design of the dental implant system is a turnkey solution to meet all of the requirements for ISO 14801 and is ideally suited for use with the ElectroPuls® E1000 or E3000 test instruments.
ElectroPuls instruments are state-of-the-art electrodynamic test systems for dynamic and static tests on materials and components. Powered entirely from a single-phase mains supply, they feature the latest in testing technology and a host of other user-oriented features.