All-on-4 vs All-on-6 vs full mouth reconstruction: cost and what the data shows

Three treatments, one question: can your teeth be saved?

People search "All-on-4 vs All-on-6" as if it were the main decision. It is not. The first question is whether your own teeth and roots are worth keeping. If they are, you do not need implants at all. If most of an arch is loose, infected or broken below the gum, no crown will hold, and a fixed implant bridge is the honest answer.

• Full mouth reconstruction: your teeth stay. Every tooth is rebuilt with crowns, bridges or veneers, planned as one case so the bite works. Missing teeth are replaced with bridges.
• All-on-4: an arch of failing teeth is removed and replaced with a fixed bridge on four implants, the two back ones angled to use the bone you already have.
• All-on-6: the same fixed bridge on six implants. More support, used when the bite is heavy or the bone is softer.

At Xiluet Smiles, the same doctor plans all three. Dr. Ramos Navarro reviews your photos and X-rays first and tells you in writing which one you need, and why, before you book anything.

What the data shows: All-on-4 vs All-on-6

The evidence is reassuring and a little boring. A 2026 meta-analysis comparing the two protocols found implant survival of 98.1% for All-on-4 and 97.5% for All-on-6 at five years or more, with similar bone loss around the implants. Two extra implants do not buy you a higher success rate.

Longer studies of the All-on-4 concept report 94 to 98 percent of implants and about 99 percent of the fixed bridges still in function at 10 years. The bridge itself is the part that wears: acrylic teeth on a temporary bridge chip and stain, which is why the final bridge is made in zirconia and typically lasts 10 to 20 years.

So when does six make sense? When your CT scan shows soft or thin bone that benefits from spreading the load, when you have a heavy bite or grind, or when the opposing arch is natural teeth or another fixed bridge. Four is the standard protocol for a reason, and it is enough for most patients.

Four implants or six is a question your CT scan answers, not your budget. We place up to six for the same price because we would rather decide clinically.

When full mouth reconstruction is the better plan

Implants replace teeth. Reconstruction keeps them. If your teeth are worn short from grinding, if old fillings and crowns are breaking one after another, if your bite hurts or your front teeth are chipped and discolored, the roots are usually sound. Removing sound roots to place implants is a bigger surgery, a longer recovery and a worse outcome than crowning the teeth you have.

A reconstruction treats the whole mouth as one plan. Your doctor takes 3D scans and a bite analysis, sets the new bite position, and designs every crown, bridge and veneer together so they meet correctly. Where a tooth is missing, a bridge closes the gap. Where a tooth is hopeless, an extraction and a bridge or, if it serves you better, a single implant is written into the plan before anything starts.

Porcelain and zirconia restorations typically last 10 to 30 years with normal care and a night guard if you grind. Crowns and bridges are also often classed as major restorative work by insurers and may be covered 50 to 80 percent depending on your plan; we give you the codes for your claim. Read more on the full mouth reconstruction page.

Cost: Miami ranges vs Xiluet Smiles

Nationally, All-on-4 is quoted at $15,000 to $30,000 per arch, with All-on-6 typically $3,000 to $5,000 more. Full mouth reconstruction runs $15,000 to $40,000 for moderate cases and $45,000 to $80,000 or more for complex ones. In Miami, most practices that publish an All-on-4 price quote $20,000 to $30,000 per arch; we found one published entry price below $10,000. These are ranges published by Miami practices in October 2026 and they change.

Our All-on-X package is $10,000 per arch, or $9,000 cash, for up to six implants and a hybrid fixed bridge, with professional cleaning, X-rays and a CT review before surgery. It does not include extractions ($400 each), bone graft, sinus lift or membranes. Those are quoted from the price list only if your CT shows they are needed, and they are in your written estimate before you pay a deposit. Most patients do not need grafting, because the back implants are angled to use existing bone.

Full mouth reconstruction is $10,000 for up to 20 crowns, bridges and veneers, with bite analysis, 3D scans, temporaries shaped like your final design and a 5-year written warranty. Prices shown are minimum fees. Your final fee is confirmed in writing after a doctor's evaluation.

Why the price can be half of the Miami range

The difference is not the implant brand or a cheaper bridge. It is where the bridge is made. Your surgeon, restorative doctor and ceramist work in the same building. There is no outside lab fee on the temporary bridge or the final zirconia bridge, no shipping, and the shade and shape are checked in person. The same in-house lab is why a reconstruction of 20 restorations can be delivered in 7 business days instead of months of separate appointments.

Most patients finance. As an example, $5,999 over 48 months at 9% APR is about $149 a month; rates and terms are set by the lender and depend on your approval. We work with five partners (Cherry, Sunbit, CareCredit, LendingClub and Affirm), each pre-qualifies you with a soft check that does not affect your credit score. Financing is provided by third-party lenders, subject to credit approval. Terms vary by partner. See the financing page.

What each timeline looks like

1. From home. Send photos and any X-rays through the free photo evaluation. A doctor replies with your treatment plan within 6 hours and tells you if a CT scan is needed first.
2. All-on-X, surgery day. Extractions if needed, four to six implants placed under local anesthesia, and a fixed temporary bridge screwed in the same day. You leave with teeth. Soft diet for two weeks.
3. All-on-X, healing. Three to four months at home while the implants fuse with bone. Check-ins by video. No travel.
4. All-on-X, final bridge. One week in Miami: scans, try-in and delivery of the final zirconia bridge, about 2 hours per visit.
5. Reconstruction, week 1. Monday: exam, 3D scans and bite analysis, every tooth planned with you. Tuesday: preparation and temporaries shaped like the final design.
6. Reconstruction, week 2. Monday: try-in, fit and bite checked. Wednesday: final crowns, bridges and veneers bonded, warranty handed over in writing.

Both are done under local anesthesia. Most patients describe pressure rather than pain and go home the same afternoon. The clinic is at 8396 SW 8th St, 15 minutes from MIA, and the team is bilingual.

What to ask before you choose

• Can my teeth be saved? Ask for the reason, tooth by tooth, in writing.
• Is the number of implants decided by my CT scan or by the price list?
• What does the package exclude: extractions, grafts, sinus lift, the final bridge, the temporary?
• Where is the bridge made, and who adjusts it after I fly home?
• What is the warranty, in writing, and what does it cover?

If you want those answers for your own mouth, send three photos. Dr. Ramos Navarro answers in writing, and the number you receive is the number you pay unless the CT or exam finds something that must be treated first, and we tell you that in writing too.