Quick Summary
All-on-4 and All-on-6 dental implants replace an entire arch of missing or failing teeth with a fixed set of new teeth supported by four or six implants. Unlike traditional dentures, full arch implants stay in place, restore stronger chewing ability, and help preserve the jawbone over time. McOmie Family Dentistry in Chattanooga offers both options and uses advanced 3D imaging to recommend the right approach based on your bone structure, oral health, and goals. If you are tired of loose dentures or facing the loss of multiple teeth, full arch implants may offer a more stable long-term solution.
Key Takeaways
- All-on-4 uses four strategically angled implants to support a full arch of teeth, often without the need for bone grafting
- All-on-6 uses six implants for additional stability, ideal for patients with sufficient bone density
- Both options provide permanent, fixed teeth that look and function like natural teeth
- Full arch implants prevent the jawbone loss that commonly occurs with dentures and missing teeth
- Many patients receive temporary teeth the same day as surgery, with final teeth placed after a healing period of 3 to 6 months
- Dr. McOmie performs hundreds of implant procedures annually and uses 3D CBCT imaging for precise surgical planning
What Are Full Arch Dental Implants?
Full arch dental implants are a modern tooth replacement solution that restores every tooth in your upper or lower jaw using a small number of strategically placed implants. Rather than replacing each tooth individually (which could require 8 to 14 separate implants), full arch systems anchor an entire set of prosthetic teeth to just four or six implant posts embedded in your jawbone.
This approach is fundamentally different from traditional dentures. Dentures rest on top of the gums and rely on suction or adhesive for support, which can lead to slipping, clicking, and food restrictions. Over time, because dentures don’t stimulate the jawbone, the bone gradually shrinks, a process called resorption. This is what causes the sunken facial appearance many long-term denture wearers develop. For a deeper look at these differences, read our guide on traditional dentures vs. implants.
Full arch implants are fixed in place and do not need to be removed at night or held in with adhesive. And because the titanium implant posts integrate with your jawbone through a process the American Dental Association calls osseointegration, they stimulate the bone the same way natural tooth roots do, preserving your facial structure for years to come.
Full arch implants are often a good fit for people missing most or all teeth in one or both arches, patients with several failing teeth that need to be removed, and denture wearers who want a more secure long-term solution.
How All-on-4 Implants Work
The All-on-4 technique uses four titanium implants to support an entire arch of teeth. Two implants are placed vertically in the front of the jaw, where bone density is naturally higher. The other two are placed in the back at angles of up to 45 degrees.
One reason All-on-4 works well for many patients is the angled placement of the rear implants. By tilting the rear implants, Dr. McOmie can maximize contact with available bone and reach areas of stronger, denser bone structure. For many patients, this approach can reduce or eliminate the need for bone grafting, even when some bone loss is already present. That’s a significant advantage, because bone grafting adds time, cost, and a separate healing period to the process.
Once the four implants are placed, a full arch of prosthetic teeth is secured to them. In many cases, patients walk out with a set of temporary teeth attached the same day as surgery. This is the “teeth in a day” concept that has made All-on-4 dental implants in Chattanooga such a popular option for patients who don’t want to spend months without teeth.
After surgery, a healing period of 3 to 6 months allows osseointegration to occur. This is the process where the titanium implants fuse directly with your jawbone, creating a bond that’s remarkably strong and stable. A longitudinal study with up to 18 years of follow-up found a cumulative implant survival rate of 93% for All-on-4 procedures, demonstrating strong long-term reliability. Once healing is complete, your permanent prosthetic teeth are custom-crafted and placed, giving you a natural-looking smile built to last.
How All-on-6 Implants Work
All-on-6 dental implants follow the same general approach, with one key difference: six implants are placed per arch instead of four. The two additional implants allow biting forces to be spread across more support points, which may be helpful in cases where broader load distribution is preferred.
This added support is often most useful for patients with enough available bone to place six implants and who want a broader foundation under the prosthetic. The extra implants create a more robust foundation, which some patients and dentists prefer for the upper jaw (where the bone tends to be softer and less dense than the lower jaw).
The treatment timeline mirrors All-on-4. Temporary teeth are typically placed on surgery day, and the permanent prosthetic is attached after 3 to 6 months of healing. Because six implants need to be placed rather than four, the surgical procedure may take slightly longer, and the approach generally requires adequate bone volume at all six implant sites.
For the right candidate, All-on-6 can provide a very strong and stable foundation for a full arch restoration. That does not automatically make All-on-6 the better option. In many cases, four well-positioned implants can provide excellent long-term function, especially when bone availability is limited.
All-on-4 vs. All-on-6: Which Is Right for You?
This is one of the most common questions patients ask, and the honest answer is that there’s no single “better” option. The right choice depends entirely on your individual anatomy, bone health, and goals. Here’s how the two approaches compare:
| Number of implants | 4 per arch | 6 per arch |
| Bone grafting needed | Sometimes avoidable due to angled implant placement | Depends on available bone at all six implant sites |
| Best for | Patients with moderate bone loss | Patients with adequate bone density |
| Bite force distribution | Concentrated on 4 points | Spread across 6 points |
| Stability | Strong support for many cases | Broader support when six implants are appropriate |
| Procedure time | Shorter | Slightly longer |
| Cost | Lower (fewer implants) | Higher (additional implants) |
| Long-term durability | 20+ years with proper maintenance | 20+ years with proper maintenance |
Several factors guide the recommendation:
Bone density is the biggest consideration. Dr. McOmie uses 3D CBCT imaging technology to create detailed three-dimensional maps of your jawbone before recommending a treatment plan. This imaging reveals exactly how much bone is available and where it’s strongest.
Location in the mouth also matters. The upper jaw typically has less dense bone than the lower jaw, which can influence whether four or six implants will provide the best long-term result.
Individual anatomy and oral health play a role too. Factors like gum health, the position of nerves and sinuses, and whether bone grafting is needed all factor into the decision.
The key point: Dr. McOmie evaluates each patient individually during a comprehensive consultation. He’ll review your 3D imaging, discuss your concerns and goals, and recommend the approach that gives you the strongest, most reliable outcome for your specific situation.
The Full Arch Implant Process at McOmie Family Dentistry
Understanding what to expect can ease a lot of the anxiety that comes with considering a major dental procedure. Here’s how the process works at McOmie Family Dentistry, step by step.
Step 1: Consultation and 3D Imaging
Your journey starts with a comprehensive exam. Dr. McOmie will take 3D CBCT scans to map your bone structure in detail, review your medical and dental history, and discuss your goals. This appointment is your chance to ask every question you have.
Step 2: Custom Treatment Plan
Based on your imaging and exam results, Dr. McOmie designs a personalized treatment plan. He’ll explain whether All-on-4 or All-on-6 is the better fit for your bone density and oral health, what to expect on surgery day, and how long the full process will take.
Step 3: Surgery Day
On the day of your procedure, any remaining teeth that need extraction are removed first. Then the implants are placed into your jawbone with precision. In many cases, a set of temporary prosthetic teeth is attached the same day, so you leave the office with a functional smile.
Step 4: Healing Period (3 to 6 Months)
Over the following months, osseointegration takes place as the implants fuse with your jawbone. You’ll wear your temporary teeth during this time. For the first few weeks, you’ll follow a soft food diet to protect the surgical sites. Dr. McOmie’s team will schedule follow-up visits to monitor your progress.
Step 5: Final Prosthetic Placement
Once your implants have fully integrated, your permanent teeth are crafted and placed. These are custom-designed to match the shape, shade, and alignment that looks most natural for your face. The result is a comfortable bite and a smile that feels like your own.
Step 6: Ongoing Care
Full arch implants require the same basic maintenance as natural teeth: regular brushing, daily cleaning under the prosthetic, and routine checkups and cleanings at McOmie Family Dentistry. With consistent care, your new teeth can last for decades.
Who Is a Good Candidate for Full Arch Implants?
Full arch dental implants work well for a wide range of patients. You may be a good candidate if you:
- Are missing most or all of the teeth in one or both arches
- Have multiple teeth that are failing, cracked, infected, or severely decayed
- Currently wear dentures and are frustrated with slipping, discomfort, or dietary restrictions
- Have moderate bone loss (All-on-4’s angled implant placement can often work without dental bone grafting)
- Have sufficient bone density for six implants (making All-on-6 an excellent choice)
- Are a non-smoker, or willing to quit before and after the procedure (research shows smoking more than doubles the risk of implant failure)
- Are in overall good general health
Here’s something important: even if you’ve been told by another dentist that you “can’t get implants” due to bone loss, it’s worth getting a second opinion. All-on-4’s angled placement technique and modern bone grafting methods have made full arch implants accessible to many patients who were previously considered ineligible. Only 10 to 15% of general dentists offer implant procedures, so the dentist who told you no may simply not have had the training or technology to offer this solution.
Benefits of Full Arch Implants Over Dentures
If you’re currently wearing traditional dentures or considering them, it’s worth understanding what full arch implants offer that dentures simply cannot.
Permanent and fixed. Full arch implants stay in your mouth at all times. No adhesives, no slipping, no taking them out at night and dropping them in a cup.
Natural look and feel. Modern prosthetics are designed to look like real teeth and feel comfortable in your mouth. Most people won’t be able to tell they’re not your natural teeth.
Full chewing ability restored. Eat steak, bite into apples, enjoy corn on the cob. Once your permanent prosthetic is placed, virtually nothing is off the menu.
Jawbone preservation. This is one of the most important benefits. Implants stimulate your jawbone the same way natural tooth roots do, preventing the bone resorption that leads to facial collapse over time. Studies show that implant sites experience minimal bone loss compared to extraction sites without implants. Learn more about how dental implants restore confidence and quality of life.
Improved speech. Denture slippage can cause mumbling, whistling, or clicking sounds. Fixed implants eliminate that problem entirely.
Long-term durability. Full arch implants can last 20 years or more with proper care. Traditional dentures typically need replacement every 5 to 8 years and require periodic relines, adjustments, and adhesive purchases along the way.
Better long-term value. While the upfront cost is higher, the longevity and reduced maintenance of full arch implants often make them more cost-effective over a lifetime compared to repeated denture replacements. For those interested in a middle-ground option, learn about implant-supported dentures as well.
What About Cost?
Let’s address this directly, because cost is one of the first things patients ask about, and rightfully so. Full arch dental implants are a significant investment in your health and quality of life.
The truth is, there’s no one-size-fits-all price for All-on-4 or All-on-6 implants. Every patient is different, and the cost depends on several factors unique to your situation, including whether bone grafting is needed, how many teeth require extraction, the materials used for your prosthetic, whether you need one arch or both, and the overall complexity of your case. All-on-6 generally costs more than All-on-4 due to the additional implants and surgical planning involved.
The best way to get an accurate picture of what your treatment will cost is through a consultation. Dr. McOmie will evaluate your oral health, review your 3D imaging, and design a personalized treatment plan before discussing pricing specific to your needs.
It helps to consider the long-term picture as well. Traditional dentures may cost less upfront, but they need replacing every 5 to 8 years. Add in the cost of adhesives, relines, adjustments, and the dietary and lifestyle limitations they impose, and the total cost over 20 years can approach or even exceed the cost of full arch implants.
McOmie Family Dentistry offers dental financing options to help make treatment accessible, so cost doesn’t have to stand between you and a permanent solution.
Frequently Asked Questions
How long do All-on-4 dental implants last?
With proper care and regular dental checkups, All-on-4 implants can last 20 years or more. The titanium implant posts themselves can last a lifetime, while the prosthetic arch may need replacement after 15 to 20 years depending on normal wear.
Is the All-on-4 procedure painful?
The procedure is performed under sedation, so you won’t feel pain during surgery. Most patients report that recovery is more manageable than they expected, with discomfort typically well-controlled by prescribed medication for the first few days.
Can I get All-on-4 implants if I have bone loss?
Yes, and this is one of the biggest advantages of the All-on-4 technique. The angled rear implants are specifically designed to maximize contact with available bone, often eliminating the need for bone grafting even in patients with moderate bone loss.
How soon can I eat normally after getting full arch implants?
You’ll receive temporary teeth on surgery day, but you’ll need to follow a soft food diet for the first several weeks while your implants heal. Once your permanent prosthetic is placed (typically 3 to 6 months after surgery), you can eat virtually anything you want.
What is the difference between All-on-4 and implant-supported dentures?
All-on-4 provides a fixed, permanent set of teeth that stay in your mouth at all times and are only removed by your dentist. Implant-supported dentures are removable prosthetics that snap onto implants for added stability but still come out for daily cleaning. All-on-4 feels and functions more like natural teeth.
Take the First Step Toward a Complete Smile
Dr. Mark McOmie has been a leader in implant dentistry in Chattanooga for many years, and his experience shows in the results his patients achieve. Named Chattanooga’s Best Dental Implant Dentist in 2025, Dr. McOmie performs hundreds of implant procedures and bone grafts each year. He uses advanced 3D CBCT imaging for precise planning, and he takes the time to make sure every patient understands their options before moving forward.
In a field where only 10 to 15% of general dentists in North America place implants (according to data from the American Academy of Implant Dentistry), having an experienced implant dentist close to home matters. McOmie Family Dentistry serves patients throughout Chattanooga, Ooltewah, Collegedale, Cleveland TN, and Ringgold GA.
If you’ve been living with missing teeth, struggling with dentures, or watching your teeth fail one by one, full arch implants could change everything. The first step is a conversation.
Schedule a consultation at McOmie Family Dentistry to find out whether All-on-4 or All-on-6 full mouth dental implants are the right fit for you. Call the office or visit our dental implant page to learn more and book your appointment.
