Dental News - Primary and secondary stability: What is important and what we do not know

Dental Tribune International

Wed. 20. June 2018

save

AMSTERDAM, Netherlands: Osstell, the developer of ISQ (Implant Stability Quotient) technology, will be introducing the Osstell Beacon at EuroPerio9, to be held in Amsterdam in the Netherlands from 20 to 23 June. An intuitive tool designed to facilitate the evolution of implant diagnostics, the Osstell Beacon guides implant treatments for more predictable results, according to the company.

Primary and secondary stability

Physiological healing after implant placement varies from patient to patient and site to site. Surgeons must find a balance between mechanical stability and avoiding excessive trauma to the alveolar bone, especially the cortical bone at the alveolar crest. The two measures of quantifying primary stability are insertion torque value (ITV) and resonance frequency analysis (RFA). Both parameters are accurate measures of rotational and axial stability, respectively, but only one (RFA) is repeatable.

The comfort of achieving a high insertion torque may be unfounded. High insertion torque can lead clinicians to believe implants can be loaded immediately. When cortical bone at the crest is over-compressed, it resorbs, leading to bone loss, deep probing depths and susceptibility to peri-implantitis. Using RFA to assess stability is accurate and may not be correlated to ITV.¹ It may also be repeated at future treatment times to evaluate increased or decreased stability. ISQ is a value used to determine stability via RFA.

Recommendations by some that arbitrary ITVs are necessary to temporise or load immediately placed implants is largely unsupported in the literature. Norton found that implants placed at ITVs well below some of these recommended values can receive temporary crowns out of occlusal contact at the time of surgery.² Other studies have also found that ITVs around 20 N cm are not correlated to ISQ values, and many patients receiving immediate provisionals would not be afforded this option, resulting in removable or adhesive temporary restorations.

Using ISQ as a primary measure of stability is not only useful but also repeatable. Implants temporised at time of placement can be evaluated at various postoperative times to determine when secondary stability or osseointegration has occurred and final crowns can be placed. ISQ is a safe and reliable means to evaluate implant stability.

Osstell at EuroPerio9

At Osstell’s booth (Booth 11.08B), visitors will be able to see the Osstell Beacon first-hand and address any questions they may have to company representatives.

“The Osstell Beacon is a natural step for us as part of the Osstell approach,” said CEO Jonas Ehinger. “It is a way for us to cater to a different segment of the market and a different use of our technology—although it is also designed to work in combination with our other products and services, such as Osstell Connect and the Osstell IDx.”

Editorial note: A list of references can be obtained from Osstell.

Tags:

To post a reply please login or register

What impact is all that noise having on your hearing?

COLOGNE, Germany: Dental professionals are exposed to constant dental noise from several sources. Various studies show evidence of the hearing damage caused...

What impact is all that noise having on your hearing?

COLOGNE, Germany: Dental professionals are exposed to constant dental noise from several sources. Various studies show evidence of the hearing damage caused...

Interview: What is Deep CBCT analysis and what does it mean for the orthodontist?

Russian start-up 3D Smile was founded in response to a lack of software applications for aligner treatment. Marina Domracheva, the founder and CEO, ...

What do Batman and orthodontic braces have in common?

The most stomach-wrenching thing dentists see is an oral cancer lesion; for hygienists, it’s the melted enamel under and around orthodontic brackets ...

Scan perfectly with CEREC Primescan and gain time for what is really important: your patients

At a practice in which digital technologies have been prioritised right from the start, new devices are a real pleasure rather than a duty. That’s why Dr ...

Interview: “The link between oral disease and oxidative stress is still not that widely known”

Dr Lenka Banasova runs her own dental centre, Pearl Dental, in the Slovakian capital of Bratislava, where she has a passionate staff of dentists, dental ...

Success or failure at sales and acquisitions—What is it going to be?

In practice sales and acquisitions, it does not always have to be something major that causes a sale to fall through. Sometimes, it is a simple case of a ...

What we know about a SARS-CoV-2 vaccine so far

LEIPZIG, Germany: As the race to develop a SARS-CoV-2 vaccine continues, certain questions may arise that need clarification. While some still doubt the ...

Interview: "Parents tell us that their children are now brushing correctly and independently"

Most children do not particularly love toothbrushing, and many parents will agree that getting their children to brush can be quite a hassle. As a solution,...

Interview: “Long-term studies show that not all implants and prostheses survive”

Prof. Christoph Hämmerle was President of the European Association for Osseointegration from 2008 until 2010, and in 2018, the organisation gave him ...

Education

Live webinar
Mon. 15 September 2025
1:00 pm EST (New York)