The All-on-6 dental implant concept is a full-arch rehabilitation technique that uses six dental implants to support a complete prosthetic arch of teeth.
Last reviewed: 2026-05-06
9 min read
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Content is educational and planning-oriented. It does not replace diagnosis, treatment, or personalized medical advice from a licensed healthcare professional. Outcomes vary by individual case.
This content is general education and does not replace evaluation by a licensed clinician. If you have symptoms, complications, or urgent concerns, seek in-person medical care.
Key takeaways
All-on-4 and All-on-6 show comparable 5-year survival rates (98.6-98.8%) based on large-scale clinical data.
The number of implants is determined by your individual anatomy, not by which option is 'better'.
Both procedures have similar complication profiles when properly planned by experienced clinicians.
Long-term success depends heavily on oral hygiene maintenance and regular professional care.
Medical travelers to Istanbul can save 60-70% compared to US/UK costs, but must verify provider credentials.
Understanding All-on-6 Dental Implants
The All-on-6 dental implant concept is a full-arch rehabilitation technique that uses six dental implants to support a complete prosthetic arch of teeth. This approach is designed for patients who have lost most or all of their teeth in one or both jaws and are seeking a permanent, fixed tooth replacement solution. For general information about dental implant procedures, visit our dental resources hub.
What Is the All-on-6 Concept?
The All-on-6 procedure involves placing six strategically positioned implants in the jawbone to support a full arch of prosthetic teeth. The implants are typically positioned at angled locations in the anterior and posterior regions to maximize bone contact and provide stable support for the prosthesis. A temporary set of teeth can often be attached on the same day as implant placement, giving patients immediate function while the implants integrate with the bone.
Research using three-dimensional finite element analysis has examined how stress distributes through the bone and implant structure with this configuration. This biomechanical study found that All-on-6 showed smaller maximum principal stress values on cortical bone and implants compared to other configurations, suggesting more favorable stress distribution in certain clinical scenarios S1.
All-on-6 vs All-on-4: What's the Difference?
The primary difference between All-on-6 and the more commonly discussed All-on-4 approach lies in the number of implants used. All-on-4 utilizes four implants, while All-on-6 uses six. Both are viable full-arch restoration options offered in Istanbul, but this numerical difference does not automatically translate to one being superior to the other.
A large retrospective clinical study involving 943 patients and 5989 implants directly compared outcomes between these two approaches S2. The results showed remarkably similar survival rates: at 2 years, cumulative survival rates were 98.6% for four-implant restorations and 98.4% for six-implant restorations. At 5 years, the rates were 98.8% and 98.7% respectively. These differences were not statistically significant, indicating that both approaches can provide reliable, long-term outcomes when appropriate for the patient's specific condition.
The choice between four and six implants is determined by a clinical decision support system based on the patient's individual anatomy, including bone volume, bone quality, and the degree of alveolar atrophy (bone loss) present. Some patients may have sufficient bone in specific areas to support six implants, while others may benefit from the four-implant approach or require additional procedures like bone grafting.
Myth vs Fact: What You Need to Know
Myth: All-on-6 Is Always Better Than All-on-4
Fact: The evidence does not support the idea that All-on-6 is universally superior to All-on-4. As demonstrated by the large comparative study cited above, both configurations achieve nearly identical survival rates at 5 years. The "better" option depends entirely on your specific clinical situation, including bone quantity and quality, the location of the restoration (upper vs. lower jaw), and your overall oral health.
Rather than asking "which is better," a more productive question is "which is appropriate for my specific situation." A qualified implant dentist should evaluate your individual anatomy and recommend the approach that provides the best balance of function, aesthetics, and long-term stability for your case.
Myth: More Implants Always Mean Better Results
Fact: More implants do not automatically lead to better outcomes. The clinical decision about how many implants to place is based on a systematic evaluation of your bone anatomy, not on a belief that "more is better." In fact, placing additional implants when not clinically indicated can unnecessarily increase surgical time, cost, and complexity without providing proportional benefit.
The large-scale study referenced earlier used a clinical decision support system based on alveolar atrophy classification to determine whether patients received four or six implants S2. This evidence-based approach ensures that the number of implants matches what the patient's specific condition requires, rather than applying a one-size-fits-all philosophy.
Myth: All-on-6 Is Riskier Because It's More Invasive
Fact: Both All-on-4 and All-on-6 are considered routine procedures when performed by experienced clinicians, and both carry similar complication profiles when properly planned. The additional two implants in an All-on-6 procedure do not inherently increase risk when the treatment is appropriate for the patient's condition.
Complications can occur with either approach, but research indicates that proper patient selection, thorough pre-operative planning, and adherence to established surgical protocols are the primary factors influencing outcomes—not the specific number of implants placed.
Myth: All-on-6 Implants Last Forever
Fact: While dental implants can last for decades with proper care, no dental restoration can be guaranteed to last forever. The long-term success of All-on-6 implants depends on multiple factors:
Oral hygiene maintenance: Daily cleaning around the implants and prosthesis is essential
Professional care: Regular dental check-ups and professional cleaning every 4-6 months are recommended
Overall health: Systemic conditions like uncontrolled diabetes can affect healing and long-term success
The biomechanical study noted that stress concentrates at the implant neck in both All-on-4 and All-on-6 models S1, which underscores the importance of proper maintenance and regular monitoring to address any issues early.
The Science Behind the Numbers
What the Research Shows
The most robust evidence comes from the retrospective analysis of 943 patients with 5,989 implants S2. This study provides concrete data on what patients can reasonably expect:
2-year cumulative survival rate: 98.6% for 4-implant restorations, 98.4% for 6-implant restorations
5-year cumulative survival rate: 98.8% for 4-implant restorations, 98.7% for 6-implant restorations
These figures represent real-world outcomes across a large patient population, making them highly relevant for understanding what success rates are realistic rather than theoretical.
The biomechanical research using finite element analysis adds another dimension to understanding these procedures S1. By modeling how forces distribute through the implant-bone interface, researchers can identify which configurations may perform better under different conditions. The finding that All-on-6 shows smaller maximum principal stress values on cortical bone suggests potential advantages in certain bone density scenarios, though this does not automatically translate to better clinical outcomes for every patient.
Factors That Influence Success
Based on the clinical evidence, several factors play a role in determining which implant configuration is appropriate and whether long-term success is likely:
Bone volume and quality: Patients with adequate bone in the implant sites may be candidates for either approach
Degree of alveolar atrophy: More advanced bone loss may influence the recommended number of implants
Jaw location: Maxilla (upper jaw) and mandible (lower jaw) have different bone characteristics
Oral hygiene capacity: Patients must be able to maintain clean implants and prostheses
Systemic health factors: Conditions like uncontrolled diabetes, cardiovascular disease, or history of bisphosphonate use may affect eligibility
Smoking status: smokers have higher implant failure rates S2 and may require additional consideration
What to Consider Before Your Procedure
Are You a Candidate?
Not everyone is a suitable candidate for All-on-6 implants. Certain conditions may contraindicate the procedure or require additional evaluation:
Uncontrolled systemic conditions such as diabetes or cardiovascular disease may affect healing
History of intravenous bisphosphonate therapy is a contraindication
History of radiation therapy to the head and neck region requires special evaluation
Pregnancy and nursing are contraindications for implant treatment
Active gum disease must be treated before implant placement
A thorough evaluation by a qualified dental implant provider should include detailed imaging (such as CBCT scans), medical history review, and discussion of your specific goals and expectations.
Questions to Ask Your Provider
When consulting with a dental implant provider, consider asking these questions to assess their qualifications and your suitability:
How many full-arch implant cases have you personally completed?
What implant system do you use, and what is its track record?
Will I need bone grafting or other preparatory procedures?
What is your success rate with cases similar to mine?
What happens if an implant fails?
What does the long-term maintenance protocol look like?
What is your experience with patients who have traveled for treatment?
Red Flags to Watch For
Be cautious of providers who:
Promise guaranteed outcomes or use "zero risk" language
Pressure you to decide immediately without adequate consultation
Cannot provide before-and-after photos of similar cases
Lack clear credentials or professional affiliations
Cannot explain the clinical reasoning for their treatment recommendation
Do not discuss potential complications or alternative options
Offer prices that seem unrealistically low compared to market averages
Cost Considerations for Medical Travelers
Istanbul offers significant cost advantages for dental implant treatment, with savings of 60-70% compared to prices in the United States or United Kingdom. However, cost should not be the only factor in your decision.
When considering treatment abroad, verify:
Clinic accreditation (JCI accreditation or Turkish Ministry of Health certification)
Surgeon credentials and specific experience with full-arch implant cases
The specific implant system being used and its international reputation
Follow-up protocols after you return home
Language support and translation services
Adequate time for initial procedure (typically 5-7 days) and planned return visit for final prosthesis
Your Action Checklist
Use this checklist to prepare for your All-on-6 consultation and decision-making process:
[ ] Gather your dental records and any previous imaging
[ ] Research potential providers, checking credentials and patient reviews
[ ] Prepare a list of questions for your consultation
[ ] Request detailed treatment plans with itemized costs
[ ] Ask to see before-and-after photos of similar cases
[ ] Verify accreditation and surgeon credentials
[ ] Understand the full treatment timeline, including follow-up visits
[ ] Plan for accommodation and travel logistics
[ ] Arrange for someone to accompany you if possible
[ ] Confirm what happens if complications arise after you return home
Coordinate Your Care
Planning dental treatment abroad requires coordination between your home dentist and your Istanbul provider. Ask your Istanbul clinic about how they handle communication with local dentists for ongoing maintenance after you return home.
If you're ready to explore your options or would like guidance on finding a qualified provider, we're here to help connect you with trusted dental implant specialists in Istanbul.
1.“Comparison between all-on-four and all-on-six treatment concepts on stress distribution for full-mouth rehabilitation using three-dimensional finite element analysis.” 2023. Accessed 2026-02-21.https://pmc.ncbi.nlm.nih.gov/articles/PMC10159094/
2.“Four vs. Six Implant Full-Arch Restorations—A Direct Comparative Retrospective Analysis in a Large Controlled Treatment Cohort.” 2025. Accessed 2026-02-21.https://pmc.ncbi.nlm.nih.gov/articles/PMC12194759/
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