- Osstell® ISQ
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Osstell isq, the objective way to measure implant stability.
The Osstell® ISQ system makes it easier for dentists to decide when is the optimal time to load implants. It’s the ideal complement to their own tactile assessment.
The decision will always be a complex one. Several key clinical parameters and risk factors are involved – most of the m related to the stability of the implant.
Accurate measurements of implant stability therefore provide valuable diagnostic insight that helps ensure successful treatments. There is compelling evidence that high levels of primary stability indicate that immediate loading can be successful. While low primary stability suggests that loading should be postponed – allowing more healing time and a chance to monitor progress.
At placement, stability can be difficult to quantify objectively by merely relying on tactile perception. Torque measurements are difficult to repeat once the implant has started to integrate and can therefore not provide a baseline for subsequent comparisons. The invasive torque method may even damage the healing if used for monitoring osseointegration.
Tactile or torque techniques share one major disadvantage when used at the second stage: they can basically only detect whether the implant is stable or not stable. They are unable to actually measure the stability and determine the degree of osseointegration.
The Osstell ISQ meter addresses this dilemma in a unique way. Not only does it measure and quantify the primary implant stability with unparalleled accuracy. In a two-step treatment – still the predominant scenario – it also provides secondary measures. This makes it possible to monitor osseointegration over time and determine the optimal time for loading the implant.
Early warnings instead of failure
A precise and reliable diagnostics tool like Osstell ISQ reduces the risk of failure. A failed treatment results in considerable suffering for the patient and considerable costs for both the patient and the dentist.
Each implant patient is unique and must be judged by his/her own characteristics. Factors affecting the outcome of loading include the patient’s age, the density and volume of the bone – as well as the degree of osseointegration.
Dentists sometimes encounter patients whose initial stability score is low. The reason could be that they have had to undergo a bone graft. In such higher-risk situations, most surgeons would avoid an early-loading protocol.
Similarly, a significant decrease in stability indicates a potential problem and should be considered an early warning. The surgeon may prefer to unload the implant – or perhaps place additional implants – and then wait until stability increases.
Thanks to the accuracy of ISQ measurements, surgeons can make a more well-informed choice of protocol for each patient. And by comparing initial and secondary stability readings, they can detect and act on any unexpected development during healing and osseointegration.
This makes the treatment of high-risk patients easier and more predictable – allowing more of these patients to be treated and more of their treatments to be successful.
Implant stability quotient
ISQ (Implant Stability Quotient) is a measurement scale for use with the RFA (Resonance Frequency Analysis) method of determining implant stability. It’s a mapping of resonance frequencies (kHz), presented as a clinically useful scale of 1-100 ISQ.
Here is how ISQ works and what it achieves.
The Osstell ISQ meter stimulates a SmartPeg™ mounted on the implant, by emitting magnetic pulses. These cause the SmartPeg to resonate with certain frequencies depending of the stability of the implant. The resonance is picked up by the Osstell ISQ meter. The SmartPegs have been calibrated in such a way that they all show comparable values for the same degree of stability, even when measuring implants from different systems.
The ISQ scale makes it possible to establish a standard clinical range within which stability values should fall to make a successful treatment outcome likely. Several studies have been conducted based on RFA measurements and the ISQ scale. They provide valid indications that the acceptable stability range lies above 55 ISQ.
ISQ values have also been used to generate the graph shown here, which has proven useful for determining if an implant is sufficiently stable at any stage of the treatment process.
Figure. The lateral stability of an implant depends on the rigidity of the bond between the implant surface and the surronunding bone. This rigidity can easily be measured.
Find out more about the universal ISQ scale by visiting www.isq-dentalimplants.com
The SmarPeg is attached to an implant.
It screws effortlessly into the implant's inside thread.
The hand-held probe stimulates the SmartPeg magnetically, without actually being connected to it - or even touching it.
An ISQ value is generated and shown on the display. It reflects the level of stability on the universal ISQ scale - from 1 to 100. the higher the ISQ value, the more stable the implant.
Osstell® ISQ testimonials from your canadian collegues
«I have been placing endosseous implants since 1987 and truly believe the Osstell ISQ, to be the only objective apparatus available on the market today which allows the serious implantologist an objective clinical means to precisely evaluate both initial mechanical and eventual biological stability. The objective measures allow the surgeon to make important clinical decisions immediately following a digital reading and record these values on the Osstell summary sheet which is then placed in the patient's chart for medico-legal and clinical reasons. The Osstell ISQ is now an integral part of our department's implantology kit.»
Dr. AJ Camarda, Oral and Maxillofacial Surgeon, Université de Montréal, QC
«A definite must-have! I was in a tricky situation, and Osstell ISQ gave me objective, measurable reassurance as to the stability of the implant; the initial reading was 35 (!!!), and the final reading on the day of the temporary placement was 75. Not the best result, I know, but the progress is encouraging. I plan to take another reading before the final restoration. And it's remarkably simple to use.»
Dr. Yves Sitbon, Université de Montréal, QC
«Since purchasing the Ostell in 2009, I routinely utilize ISQ readings as an objective measurement to accompany my clinical findings at initial placement, healing follow-up, exposure and transfer appointment 3 to 4 months post operative and at delivery of final prosthesis. I have found it to be reliably consistent with other clinical findings. I appreciate its fast response and ease of use. My team and patients enjoy cheering with strong results. It has become a permanent part of our implant armentarium.»
Dr. Stuart Robson, Bracebridge, ON
«Upon implementing ISQ readings, using Osstell the loading and restoring of dental implants is now accomplished with more objectivity»
Dr. Herman K Kupeyan, Prosthodontist, Windsor, ON
«Osstell is a killer app for implant dentistry, its taken the guessing game out of the 4 month healing period, allowing objectivity and predictability»
Dr. James Jung & Dr. Sylvain Marino, Penticton, BC
«The Osstell provides an objective measure of implant stability. I no longer depend solely upon my subjective judgement of the implant. It provides one more piece of information to help me move forward with confidence to restore implants.»
Dr. Bradley Bishop, Prosthodontist, Kelowna, BC
«The Osstell ISQ has proven to be an invaluable tool in my implant practice. It provides consistent and reliable feedback regarding implant stability and helps guide loading decisions.»
Dr. Steve Faigan, Periodontist, Kelowna, BC
«I have been using the Osstell unit in my practice for 1 year now. I find that it has significantly improved my implant practice by adding an extra objective dimension to my diagnostic tools as well as providing a level of assurance to my patients. I have even tried to fool the device with incorrect test pegs or pegs inserted too loosely – it has always detected these errors.»
Dr. Alex Kaykin, Toronto, ON
«I use the Ostell ISQ for the assessment of all my implants. It provides me with the confidence to objectively say that implant stability has been achieved. The Ostell ISQ is consistent and easy to use. I am pleased to be able to offer this service to my patients which does not risk the healing process of the implant and allows them to proceed to the restorative phase as quickly as possible. It is an integral part of my dental implant practice.»
Dr. Sandra A. C. Chong, Periodontist, Kanata, ON