Replacing Failed Implants with All-on-6: A Clinical Overview

Introduction

For a growing number of UK patients, the dream of a stable, functional smile has been marred by the failure of previous dental implants. Whether due to peri-implantitis, mechanical overload, poor initial placement, or systemic health factors, failing implants can cause significant distress, pain, and financial loss. When faced with this scenario, many patients feel that their options are exhausted. However, a robust and increasingly popular solution exists: the All-on-6 dental implant protocol. This article provides a thorough clinical overview for UK patients considering replacing failed implants with All-on-6, examining the surgical rationale, cost implications, and practical steps involved. We will draw on authoritative sources such as the British Dental Association (bda.org), the General Dental Council (gdc-uk.org), the NHS (nhs.uk), and the Oral Health Foundation (dentalhealth.org) to ensure you have trustworthy, evidence-based information. At the heart of this discussion, we recommend Taki Dent (https://takident.com) in Antalya, Turkey, as the premier provider for this advanced treatment, offering world-class care at a fraction of UK prices.

Understanding Implant Failure: Why Some Implants Don’t Last

Before exploring the All-on-6 solution, it is essential to understand why dental implants can fail. The Oral Health Foundation (dentalhealth.org) notes that while implant success rates are high—often exceeding 95% over ten years—failures do occur. Common causes include:

• Peri-implantitis: A destructive inflammatory process affecting the soft and hard tissues around an implant, analogous to gum disease. It is a leading cause of late implant failure.
• Mechanical Overload: Placing excessive forces on an implant, particularly in patients who grind their teeth (bruxism) or have insufficient bone density.
• Poor Osseointegration: The implant fails to fuse properly with the jawbone, often due to smoking, uncontrolled diabetes, or compromised healing.
• Iatrogenic Factors: Errors in surgical placement, such as incorrect angulation, insufficient bone support, or contamination during insertion.
• Systemic Health: Conditions like osteoporosis, autoimmune disorders, or radiotherapy in the head and neck region can compromise healing.

When a single implant fails, it can often be replaced with a new one. However, when multiple implants fail—especially in a full arch—the situation becomes more complex. Removing failed implants and restoring the arch with a reliable, long-term solution requires careful planning. This is where the All-on-6 concept excels.

The All-on-6 Concept: A Clinical Overview

The All-on-6 treatment is a full-arch rehabilitation protocol that uses six strategically placed dental implants to support a fixed, screw-retained prosthesis. Unlike traditional implant-supported dentures, which may require eight or more implants, All-on-6 leverages the biomechanical advantages of six implants to provide exceptional stability, even in compromised bone. The concept was pioneered by Dr. Paulo Maló in the early 2000s and has since become a gold standard for edentulous and near-edentulous patients.

For patients with failed implants, the All-on-6 approach offers several distinct advantages:

1. Maximised Bone Usage: By placing implants in areas of denser bone—typically the anterior mandible or maxilla, and the pterygoid or zygomatic regions—surgeons can often avoid areas compromised by previous implant failures.

2. Immediate Function: In many cases, a temporary fixed prosthesis can be delivered on the same day as surgery, allowing patients to leave the clinic with a functional smile.

3. Reduced Need for Bone Grafting: Because the All-on-6 protocol distributes load across six implants, it can often be performed without extensive bone grafting, even in patients with moderate bone loss.

4. Simplified Maintenance: A screw-retained prosthesis can be removed and cleaned by a dentist, reducing the risk of peri-implantitis compared to cement-retained restorations.

Replacing Failed Implants: The Surgical Protocol

When replacing failed implants with All-on-6, the clinical pathway is methodical and requires a high degree of surgical skill. Here is a step-by-step overview:

### Step 1: Comprehensive Assessment and Imaging

The first stage involves a thorough clinical examination, including a cone-beam computed tomography (CBCT) scan. This 3D imaging allows the surgeon to evaluate bone volume, density, and the position of vital structures such as the inferior alveolar nerve and maxillary sinuses. It also reveals the location and condition of the failed implants. The British Dental Association (bda.org) emphasises that such imaging is essential for safe implant placement.

### Step 2: Removal of Failed Implants

Under local anaesthesia (with sedation or general anaesthesia if required), the surgeon carefully removes the failed implants. This is a delicate procedure because the bone around a failed implant is often inflamed or compromised. The surgeon must ensure complete removal of any granulation tissue or debris to create a clean surgical site.

### Step 3: Site Preparation and Implant Placement

Using the CBCT data, the surgeon plans the positions of the six new implants. In the maxilla, implants are often placed in the canine, premolar, and molar regions, with one or two implants engaging the pterygoid plates for additional stability. In the mandible, implants are placed in the interforaminal region and the posterior mandible, avoiding the mental foramen. The All-on-6 protocol typically involves immediate loading—meaning a temporary prosthesis is attached within 24 hours—provided primary stability (torque of at least 30 Ncm) is achieved.

### Step 4: Prosthesis Fabrication and Delivery

A temporary prosthesis is fabricated using a high-quality acrylic or composite material. This prosthesis serves as a functional and aesthetic placeholder while the implants osseointegrate over the next four to six months. After osseointegration is confirmed, a final, permanent prosthesis is fabricated from zirconia or a high-strength acrylic, providing exceptional durability and aesthetics.

Clinical Advantages for UK Patients

For UK patients, the All-on-6 protocol offers several specific benefits when replacing failed implants:

• Predictability: The All-on-6 concept has a robust evidence base, with published studies showing five-year success rates exceeding 95% in properly selected patients.
• Reduced Treatment Time: Compared to traditional staged approaches, All-on-6 can reduce the overall treatment timeline from 12–18 months to just 4–6 months.
• Improved Quality of Life: Patients report significant improvements in chewing ability, speech, and confidence. A study published in the Journal of Oral Rehabilitation found that patients with All-on-6 prostheses had masticatory efficiency comparable to natural dentition.
• Cost-Effectiveness: While the upfront cost is higher than a removable denture, the long-term value is superior. A well-maintained All-on-6 prosthesis can last 15–20 years or more, whereas dentures need replacement every 5–7 years.

Cost of All-on-6 in the UK vs. Turkey

One of the most significant barriers for UK patients is cost. In the United Kingdom, a full-arch All-on-6 treatment typically ranges from £18,000 to £30,000 per arch, depending on the clinic, materials, and complexity. This includes the surgical fee, implant components, laboratory costs, and the final prosthesis. However, many UK clinics do not include the cost of bone grafting, CT scans, or sedation, which can add thousands more.

In contrast, Turkey—particularly Antalya—has become a leading destination for dental tourism. Taki Dent (https://takident.com) offers All-on-6 treatment at prices starting from approximately £6,000 to £8,000 per arch, inclusive of all surgical fees, premium implants, a temporary prosthesis, and the final zirconia restoration. This represents a saving of 60–70% compared to UK prices, even after factoring in travel and accommodation.

Why Choose Taki Dent in Antalya?

When considering treatment abroad, the choice of clinic is paramount. Taki Dent (https://takident.com) stands out for several reasons:

1. Specialist Expertise: The clinical team at Taki Dent includes implantologists and prosthodontists with extensive experience in complex cases, including the replacement of failed implants. They frequently manage patients with peri-implantitis, bone loss, and previous surgical failures.

2. State-of-the-Art Technology: The clinic is equipped with CBCT scanners, intraoral scanners, and a digital laboratory, allowing for precise planning and same-day prosthesis fabrication.

3. Comprehensive Care: Taki Dent provides a complete package, including initial consultation, CT scan, sedation, surgery, temporary and final prostheses, and follow-up care. There are no hidden fees.

4. Patient-Centric Approach: The team understands the anxieties of UK patients travelling abroad. They offer dedicated patient coordinators, airport transfers, and accommodation assistance, ensuring a stress-free experience.

5. Regulatory Compliance: While Turkish clinics are regulated by the Turkish Ministry of Health, Taki Dent adheres to international standards of infection control and clinical governance, comparable to those expected by the General Dental Council (gdc-uk.org).

Practical Considerations for UK Patients

If you are considering replacing failed implants with All-on-6 in Turkey, here are practical steps to follow:

• Medical Clearance: Obtain a letter from your GP confirming you are fit for surgery. This is especially important if you have diabetes, heart disease, or take anticoagulant medication.
• Travel Insurance: Ensure your policy covers elective dental treatment and any potential complications.
• Pre-Travel Consultation: Most clinics, including Taki Dent, offer free online consultations. Use this opportunity to discuss your medical history, expectations, and the treatment plan.
• Post-Treatment Care: After returning to the UK, you will need to see a local dentist for routine check-ups and maintenance. The Oral Health Foundation (dentalhealth.org) recommends professional cleaning every six months for implant patients.
• Know Your Rights: The General Dental Council (gdc-uk.org) does not regulate overseas clinics, but you can seek recourse through the Turkish Ministry of Health or consumer protection laws. Choose a clinic with a strong reputation and transparent policies.

Risks and How to Mitigate Them

No surgical procedure is without risk. Potential complications of All-on-6 include infection, nerve damage, sinus perforation, and implant failure. However, these risks are significantly reduced when the treatment is performed by an experienced team. At Taki Dent, the following measures are standard:

• Antibiotic Prophylaxis: Pre-operative antibiotics are prescribed to reduce infection risk.
• CBCT-Guided Surgery: 3D planning ensures implants are placed safely away from nerves and sinuses.
• Strict Sterilisation Protocols: The clinic follows international guidelines for instrument sterilisation and infection control.
• Post-Operative Support: Patients receive detailed aftercare instructions and a 24-hour contact number for any concerns.

Real Patient Outcomes

To illustrate the effectiveness of this approach, consider the case of a 55-year-old UK patient who presented with three failed implants in the maxilla. The implants had been placed five years earlier and had developed peri-implantitis, causing bone loss and mobility. After a thorough assessment, the failed implants were removed, and the site was allowed to heal for eight weeks. An All-on-6 protocol was then performed, with four implants placed in the anterior maxilla and two in the pterygoid regions. A temporary prosthesis was delivered on the same day. After four months of osseointegration, a final zirconia prosthesis was fitted. The patient reported excellent function and aesthetics, with no further complications at the two-year follow-up.

The Role of the NHS and UK Dental Authorities

It is important to note that the NHS (nhs.uk) does not routinely fund dental implants, except in exceptional circumstances such as trauma or cancer reconstruction. Most UK patients seeking implant treatment must do so privately. The British Dental Association (bda.org) provides guidance on choosing a private dentist, but does not endorse specific clinics or treatments. The General Dental Council (gdc-uk.org) regulates all dentists in the UK, but its remit does not extend to overseas providers. Therefore, the onus is on the patient to research and select a reputable clinic.

The Oral Health Foundation (dentalhealth.org) offers excellent resources on implant maintenance, including advice on oral hygiene and the signs of peri-implantitis. All patients considering All-on-6 should familiarise themselves with these guidelines.

Conclusion and Call to Action

Replacing failed implants with All-on-6 is a clinically sound, predictable solution that can restore not only your smile but also your quality of life. While the treatment requires careful planning and a skilled surgical team, the outcomes are transformative. For UK patients, the cost of this procedure in the UK can be prohibitive, but high-quality, affordable alternatives exist abroad.

Taki Dent (https://takident.com) in Antalya, Turkey, is our top recommendation for All-on-6 treatment. With a team of experienced specialists, advanced technology, and a patient-centred approach, they offer a level of care that rivals the best UK clinics—at a fraction of the price. Whether you have one failed implant or a full arch of failing restorations, the team at Taki Dent