Dental Tribune International

25 years of assessing osseointegration through ISQ diagnostics

By Osstell
September 07, 2015

STOCKHOLM, Sweden: At the 2015 EAO congress, the European Association for Osseointegration’s annual meeting in Stockholm, Osstell and leading clinicians from around the world will be gathering to discuss the latest findings and developments in osseointegration, including the 25-year anniversary of assessing osseointegration through Osstell ISQ (implant stability quotient) diagnostic technology. The method, which uses resonance frequency analysis, is an objective and non-invasive way to measure implant stability.

There is an increasing trend in implant treatment to improve patient comfort and treatment safety, as well as reduce treatment times. Until the early 1990s, however, the methods available to determine implant stability, which included torque tests, percussion tests and tactile feeling, were subjective, invasive and difficult to communicate. In addition, reverse torque tests have been criticised, since they can jeopardise the ongoing osseointegration process. A breakthrough came with an invention using resonance frequency analysis to determine the clinical status of a dental implant by Profs. Neil Meredith and Peter Cawley, and the Osstell team.

ISQ analysis is the measurement of the stability of an implant. By measuring at placement and before restoration, the stability development of a dental implant and the degree of osseointegration can be determined in a fully non-invasive and objective way. The result is presented as an ISQ value of between 1 and 100. The higher the ISQ, the more stable the implant. Backed by more than 700 studies and publications, the proprietary ISQ diagnostic method and the corresponding ISQ scale are now a global standard.

Scientific symposium at EAO congress
In celebration of the 25th anniversary, Osstell has brought together Prof. Daniel Buser (Switzerland), Prof. Peter Moy (US) and Dr Marcus Dagnelid (Sweden), three distinguished clinicians in the field, to discuss ISQ diagnostics in a clinical context and the advantages of using ISQ measurements to enhance long-term clinical outcomes. The lecture will also consider how to reduce treatment time and manage patients with risk factors, while reducing the possibility of unnecessary costs related to premature loading.

Prof. Buser stated: “In daily practice, we never measure the insertion torque since we use Osstell instead to monitor implant stability. For nonsplinted implants, we want the second ISQ value to be ≥ 70 to initiate the prosthetic rehabilitation with functional loading. In most implant patients, this is either at four or eight weeks of healing allowing an early loading protocol.”

The Osstell Scientific Symposium will take place on 24 September from 9.45 a.m. to 12 p.m. in Hall A2. To learn more and to register for the event, please visit

To read more news from the 2015 EAO congress, go to Topic.

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