What Are All-on-6 Dental Implants?
All-on-6 dental implants replace an entire arch of missing teeth with a fixed prosthesis anchored to six implants placed in the jaw bone. Unlike removable dentures that sit on top of the gums, All-on-6 teeth are permanently attached to the implants and function much like natural teeth. You brush them, eat with them, and they do not come out.
The concept is similar to All-on-4, which uses four implants per arch. All-on-6 adds two more implants, distributing biting forces across more points and providing a wider base of support. This can be particularly beneficial in the upper jaw, where bone density tends to be lower, or in patients with larger jaw structures.
Who Is a Candidate for All-on-6?
All-on-6 is designed for patients who are missing all teeth in one or both jaws, or whose remaining teeth are failing and need to be extracted. You may also be a candidate if you currently wear dentures and want a fixed, permanent alternative.
- Patients missing all teeth in an arch or with teeth that are too damaged to save.
- Patients with moderate bone loss who have enough bone for six implant sites but may not have ideal density for just four.
- Patients with larger jaw arches where six implants provide a more even distribution of force.
- Current denture wearers who want to switch to a fixed restoration they do not remove.
- Patients with strong bite forces (such as those who clench or grind) where additional implants reduce stress on each individual implant.
All-on-6 vs. All-on-4: Key Differences
Both All-on-6 and All-on-4 achieve the same goal: a full arch of fixed teeth supported by implants. The main difference is the number of implants used and the clinical situations where each approach works best.
When Six Implants May Be Preferred
The additional two implants in All-on-6 provide more anchor points, which distributes chewing forces more evenly across the arch. This is beneficial when the jaw bone has areas of lower density, when the arch is large, or when the patient generates strong bite forces. Some specialists also prefer six implants for the upper jaw because the maxillary bone is generally softer and less dense than the lower jaw.
With six implants, if one implant were to fail, the prosthesis may still be supported by the remaining five. With four implants, the loss of a single implant is more likely to compromise the entire restoration.
When All-on-4 Is Sufficient
All-on-4 has a long clinical track record and works well for many patients. If bone density is good and the arch size is average, four implants can provide all the support needed. All-on-4 is also appropriate when patients want to minimize surgical time, number of implant sites, and cost. Your prosthodontist and surgeon will evaluate your bone quality, arch dimensions, and bite to determine which approach is right for you.
Quick Comparison
- Number of implants: All-on-4 uses 4 per arch; All-on-6 uses 6 per arch.
- Cost: All-on-4 ranges from $20,000 to $30,000 per arch; All-on-6 ranges from $25,000 to $35,000 per arch.
- Surgical time: All-on-6 takes slightly longer due to two additional implant placements.
- Bone requirements: All-on-6 requires adequate bone at six sites rather than four, though some sites may use angled implants to maximize available bone.
- Force distribution: Six implants spread biting forces across more points, which may reduce stress on individual implants.
- Redundancy: If one implant fails, All-on-6 has more remaining support than All-on-4.
The All-on-6 Procedure: What to Expect
All-on-6 treatment involves multiple stages, from initial planning through final prosthesis delivery. The entire process typically spans 4 to 8 months, though you will have functional temporary teeth for most of that time.
Planning and Imaging
Treatment begins with a detailed evaluation including 3D cone-beam CT (CBCT) scans, digital impressions, and photographs. Your prosthodontist and surgeon use this data to map the exact position for each of the six implants using computer-guided surgical planning. This virtual planning ensures each implant is placed in the best available bone at the optimal angle.
Surgery Day
On the day of surgery, any remaining teeth are extracted if needed. Six implants are placed into the jaw bone according to the pre-planned positions. The two posterior implants are sometimes placed at an angle to engage stronger bone and avoid anatomical structures like the sinus or the nerve in the lower jaw.
In many cases, a temporary fixed prosthesis (sometimes called an immediate bridge or provisional) is attached to the implants on the same day. This means you leave the office with a full set of functional teeth. The temporary prosthesis is lighter and softer than the final version to reduce stress on the healing implants.
Healing and Final Prosthesis
The implants need 3 to 6 months to fully integrate with the jaw bone. During this time, you wear the temporary prosthesis and follow a modified diet that avoids very hard or sticky foods. Your specialist will monitor healing with periodic check-ups and imaging.
Once the implants have fully integrated, impressions or digital scans are taken for the permanent prosthesis. The final restoration is typically made from high-strength zirconia or acrylic fused to a titanium or zirconia framework. It is designed to look and function like natural teeth and is built to last 15 to 20 years or more with proper care.
Recovery After All-on-6 Surgery
Recovery after All-on-6 implant surgery follows a predictable pattern. Most patients manage recovery well, though the first week requires patience and careful attention to your specialist's instructions.
The First Week
Swelling, bruising, and discomfort peak around days 2 to 3 and then gradually subside. Pain is managed with prescribed medication. A liquid and soft food diet is required for the first 1 to 2 weeks. Cold compresses help with swelling. Most patients take 3 to 7 days off work, depending on the physical demands of their job.
Weeks 2 Through 12
Swelling resolves and comfort improves steadily. Soft foods are recommended for 6 to 12 weeks while the implants integrate. Avoid biting into hard foods directly with the temporary prosthesis. Oral hygiene around the implants is critical during this period; your specialist will demonstrate how to clean around the temporary teeth.
Follow-up visits are typically scheduled at 1 week, 4 weeks, and 3 months post-surgery to monitor healing and implant integration.
All-on-6 Dental Implant Cost
All-on-6 dental implants typically cost between $25,000 and $35,000 per arch. This includes the implants, abutments, temporary prosthesis, final prosthesis, surgical fees, and follow-up care. The total varies depending on the materials chosen for the final prosthesis (zirconia frameworks cost more than acrylic), the need for any additional procedures such as bone grafting or sinus lifts, and geographic location.
The cost is higher than traditional dentures, but All-on-6 is a permanent, fixed restoration that does not require adhesives, does not cover the roof of your mouth, and preserves jaw bone by stimulating it through the implants. Many patients find the long-term value outweighs the upfront cost.
Dental insurance rarely covers the full cost of implant-supported full arch restorations, though some plans contribute toward the prosthetic portion. Many practices offer financing plans that spread the cost over 12 to 60 months. Costs vary by location, provider, and case complexity.
Which Specialists Perform All-on-6?
All-on-6 treatment is typically a team effort. A prosthodontist designs and delivers the prosthetic teeth, while an oral surgeon or periodontist places the implants. Some prosthodontists place implants themselves. In either case, the prosthodontist is the specialist who manages the overall treatment plan and ensures the final teeth look, fit, and function correctly.
If you are considering All-on-6 dental implants, consult a prosthodontist who has experience with full arch implant restorations. They can evaluate whether All-on-4, All-on-6, or another approach is the best fit for your situation.
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