Osstell- Osseointegration Measurement
Osstell was invented in 1992 by Neil Meredith and Peter Cawley at Imperial College, London. It can be very difficult for a clinician to assess the healing and osseointegration of a dental implant. This can be important to assess at risk implants at placement, help determine healing periods and loading times and monitor the performance of implants over time. A range of methods have been investigated including measurement of cutting resistance during insertion and tapping with a mirror handle. However none of these experimental methods offer quantitive, reproducible and sensitive measurements.
Resonance Frequency Analysis (the principle on which Osstell is based) provides a highly accurate non-invasive clinical method to measure implant stability. The technique uses a simple ‘smartpeg’ to attach to an implant or abutment and a measurement is made by holding a probe near to the peg.
The Implant Stability Quotient or ISQ value in the range 0-100 gives a value of the Primary Stability of an implant at placement or Secondary Stability which indicates the changes due to bone formation and osseointegration.
In combination with a clinical evaluation, Osstell can be used to indicate the suitability of an implant for loading and identify potential problems at the earliest stage thereby minimising failures. Osstell is becoming the standard of care for the clinical assessment of implants in many countries.
Neoss is the major distributor for Osstell and offers unrivalled support and information thanks to its affiliation with the inventor.