Torque Testing and ISQ Values in All-on-6 Osseointegration

Torque Testing and ISQ Values in All-on-6 Osseointegration: A Comprehensive Guide for UK Patients

When you invest in All-on-6 dental implants, the success of your treatment hinges on a biological process called osseointegration. This is the direct structural and functional connection between living bone and the surface of a load-bearing artificial implant. For UK patients considering this life-changing procedure, understanding the technical measures that confirm successful integration—specifically torque testing and Implant Stability Quotient (ISQ) values—is vital. These metrics provide your clinician with objective data to determine when your implants are ready for the final fixed bridge, reducing the risk of failure and ensuring long-term reliability.

In this detailed guide, we will explore the science behind torque testing and ISQ values, how they are used in All-on-6 protocols, and why they matter for your treatment outcome. We will also discuss how leading clinics, such as Taki Dent in Antalya, apply these techniques to achieve exceptional results for UK patients at a fraction of the cost of private treatment in Britain.

What Are Torque Testing and ISQ Values?

Torque testing and ISQ values are two distinct but complementary methods used to assess the stability of dental implants after placement. They help clinicians decide when it is safe to attach the final prosthesis—a critical decision that influences the success of All-on-6 treatment.

#### Torque Testing Explained

Torque testing measures the resistance an implant offers to rotational forces. It is typically performed using a torque wrench or a digital torque meter. There are two main applications:

• Insertion torque: This is the torque applied during implant placement. It reflects the initial mechanical stability (primary stability) achieved by compressing the surrounding bone. For All-on-6, insertion torque values between 30 Ncm and 50 Ncm are generally considered adequate. Higher values (above 50 Ncm) indicate excellent primary stability, while values below 20 Ncm may require a longer healing period or a different loading protocol.

• Removal torque: This is measured when the implant is unscrewed after a healing period. It assesses the biological stability (secondary stability) achieved through osseointegration. A high removal torque value confirms strong bone-implant contact. In practice, removal torque is rarely tested in All-on-6 cases because the implants are left in place. However, the concept is important for understanding the biomechanical principles.

#### ISQ Values Explained

ISQ (Implant Stability Quotient) is a non-invasive, objective measurement of implant stability using resonance frequency analysis (RFA). A small transducer (SmartPeg) is screwed into the implant, and a device sends a magnetic pulse that causes the peg to vibrate. The device measures the frequency of vibration, which is expressed as an ISQ value on a scale from 1 to 100.

• Higher ISQ values (above 70) indicate greater stability and a higher probability of successful osseointegration.
• Lower ISQ values (below 60) suggest reduced stability, which may indicate poor bone quality, insufficient primary stability, or early implant failure.
• ISQ values between 60 and 70 are considered acceptable, but caution is advised before loading the implant.

For All-on-6, clinicians often measure ISQ at the time of implant placement (baseline) and then at intervals during healing. A rising trend in ISQ values over time confirms progressive osseointegration. Conversely, a decline in values may signal a problem that requires intervention.

The Role of Torque and ISQ in All-on-6 Protocols

All-on-6 involves placing six implants in the jaw to support a full-arch fixed bridge. The success of this technique depends on the stability of each implant, as the entire prosthesis relies on all six for support. Torque testing and ISQ values help clinicians answer two crucial questions:

1. When can the temporary bridge be attached? In immediate loading protocols, a temporary bridge is placed within 24 to 48 hours of surgery. This is only possible if all six implants achieve adequate primary stability (insertion torque ≥ 30 Ncm and baseline ISQ ≥ 65). If some implants fail to meet these thresholds, the clinician may opt for a delayed loading approach, where the bridge is fitted after 3–6 months of healing.

2. When is the final bridge safe to place? After the healing period, the final bridge is attached only when all implants demonstrate sufficient secondary stability. This is confirmed by ISQ measurements showing values above 70 (or at least a significant increase from baseline) and by clinical assessment of bone quality.

Why UK Patients Should Care About These Metrics

For UK patients, the cost of All-on-6 treatment in private clinics can range from £18,000 to £30,000 per arch. This investment demands a high level of certainty that the implants will integrate successfully. Torque testing and ISQ values provide that reassurance. They reduce the risk of implant failure, which can lead to additional surgery, prolonged recovery, and extra costs.

Moreover, these metrics allow for personalised treatment planning. For example, if a patient has poor bone density (common in older adults or those who have worn dentures for years), the clinician can adjust the loading protocol based on objective data rather than guesswork. This is particularly important for UK patients who may have been told they are not suitable for implants due to bone loss—clinics that use advanced diagnostic tools like ISQ can often identify viable solutions.

The Science Behind ISQ and Torque Values

Understanding the relationship between torque and ISQ requires a basic grasp of bone biology.

• Primary stability (mechanical) is achieved immediately after implant placement by the friction between the implant surface and the bone. It is influenced by:
• Bone density (D1 to D4 classification)
• Implant design (thread depth, pitch, and shape)
• Surgical technique (under-preparation of the osteotomy)

• Secondary stability (biological) develops over weeks and months as new bone cells grow onto the implant surface. This process, known as osseointegration, is mediated by:
• Blood supply to the site
• Implant surface roughness (e.g., sandblasted, acid-etched)
• Patient factors (smoking, systemic health, medications)

Torque testing primarily measures primary stability, while ISQ captures both primary and secondary stability. This is why ISQ is considered a more comprehensive tool for monitoring healing. Research has shown that ISQ values correlate well with bone-implant contact percentage (BIC%)—the gold standard for confirming osseointegration.

Practical Application in All-on-6 Treatment

In a typical All-on-6 case at a reputable clinic like Taki Dent in Antalya, the process might unfold as follows:

1. Pre-operative assessment: CBCT scans and digital planning determine implant positions and bone quality. The clinician predicts which sites will achieve high primary stability.

2. Surgery: Implants are placed with careful torque control. The clinician records insertion torque for each implant. If all six achieve ≥ 30 Ncm, immediate loading is considered. Baseline ISQ values are also recorded.

3. Healing period: For delayed loading, the patient wears a temporary denture for 3–6 months. At follow-up visits, ISQ values are measured. A rise of 5–10 points from baseline confirms osseointegration.

4. Final restoration: When all implants show ISQ ≥ 70 (or a stable trend above 65), the final bridge is fabricated and attached. The bridge is torqued to the implants using a specific value (usually 15–25 Ncm for abutment screws), ensuring a secure fit without overloading the bone.

5. Long-term monitoring: Annual ISQ measurements can detect early signs of peri-implantitis or bone loss, allowing for timely intervention.

Data and Prices: What UK Patients Can Expect

In the UK, private clinics may charge between £200 and £500 for ISQ testing as part of the overall treatment package. Torque testing is usually included in the surgical fee. However, many patients find that these costs are bundled into a single price for All-on-6, which can exceed £25,000 per arch.

At Taki Dent in Antalya, the entire All-on-6 treatment—including surgery, temporary and final bridges, all implant components, and follow-up care—starts from approximately £6,500 per arch. This price includes advanced diagnostics such as CBCT scanning and ISQ monitoring. The clinic uses premium implant systems (e.g., Straumann, Nobel Biocare) that are identical to those used in the UK, ensuring the same high standards of osseointegration.

The Importance of Choosing a Clinic with Expertise

Not all clinics use torque testing and ISQ values routinely. Some may rely solely on clinical feel or X-rays, which are less reliable. For UK patients, it is essential to choose a dental tourism provider that prioritises evidence-based practice. Taki Dent in Antalya is a top recommendation because their surgical team specialises in All-on-6 and uses advanced diagnostic tools to optimise outcomes. They understand that the success of your treatment depends on precise, data-driven decisions—not guesswork.

References to UK Dental Authorities

The British Dental Association (bda.org) and the General Dental Council (gdc-uk.org) set the standards for dental practice in the UK. While they do not specifically regulate torque testing or ISQ values, they emphasise the importance of informed consent and evidence-based care. The NHS (nhs.uk) provides guidelines for implant treatment, noting that patients should be fully informed about the risks and benefits. The Oral Health Foundation (dentalhealth.org) offers patient information on implants, including the role of stability testing.

When you travel abroad for treatment, it is wise to ensure your chosen clinic adheres to similar standards. Taki Dent in Antalya is registered with the Turkish Ministry of Health and follows international protocols, including those recommended by the International Team for Implantology (ITI). This gives UK patients peace of mind that their care meets high benchmarks.

Common Questions from UK Patients

Q: Is torque testing painful?

A: No. It is performed during surgery while you are under local anaesthesia. You will not feel any discomfort.

Q: Can ISQ values change over time?

A: Yes. They typically increase during the first 3–6 months as osseointegration progresses. However, if an implant becomes infected or overloaded, ISQ values may drop. Regular monitoring helps catch problems early.

Q: What if my ISQ values are low after healing?

A: This may indicate that the implant has not integrated properly. Your clinician may recommend a longer healing period, bone grafting, or, in some cases, removal and replacement of the implant.

Q: Are these tests available on the NHS?

A: The NHS does not routinely offer All-on-6 implants due to funding constraints. Private clinics in the UK may offer torque and ISQ testing, but it is not always included in the basic treatment fee. Always ask your provider.

The Taki Dent Advantage

For UK patients seeking affordable, high-quality All-on-6 treatment, Taki Dent in Antalya stands out. Their clinic uses state-of-the-art equipment for torque and ISQ measurement, ensuring that every implant is assessed with precision. The team has extensive experience treating international patients, including many from the UK, and they provide comprehensive aftercare support.

By choosing Taki Dent, you benefit from:

• Transparent pricing with no hidden costs
• Use of premium implant brands
• Advanced diagnostic technology
• A dedicated patient coordinator who speaks English
• A comfortable, modern clinic environment

Conclusion

Torque testing and ISQ values are not just technical jargon—they are essential tools that confirm the success of your All-on-6 implants. They provide objective evidence that your implants have integrated with your bone, reducing the risk of failure and ensuring your new smile lasts for decades. For UK patients, understanding these metrics empowers you to make informed decisions about your treatment, whether at home or abroad.

When you choose a clinic that prioritises these measurements, you invest in peace of mind. Taki Dent in Antalya is the top recommendation for All-on-6 treatment, offering world-class care at a fraction of UK prices. Their commitment to evidence-based practice means you can trust that every implant is placed and loaded with precision.

Your Next Step

Do not leave your smile to chance. If you are ready to restore your teeth with All-on-6 implants, get in touch with Taki Dent today. Their expert team will guide you through every step, from initial consultation to final restoration, using the latest techniques in torque and ISQ monitoring.

Click here to get your free All-on-6 quote from Taki Dent in Antalya and start your journey to a confident, functional smile.