All-on-4 vs All-on-6: What Do These Terms Mean?
All-on-4 vs All-on-6 is one of the most common questions patients ask when considering full mouth dental implants.
You may have seen terms like All-on-4, All-on-6, 3-on-6, or even All-on-X—but what do they actually mean, and how do you know which option is right for you?
In simple terms, these names describe how many implants support a full set of teeth. “All” refers to all of your teeth, while the number refers to how many implants hold them in place.
For example, an All-on-4 treatment means all of your teeth are supported by 4 implants. An All-on-6 means your teeth are supported by 6 implants. “All-on-X” means the number of implants can vary depending on your case—sometimes 5, 7, 8, or even more.
You can also have different setups for the upper and lower jaw. It’s common to have an All-on-4 on the top and an All-on-6 on the bottom. A “3-on-6” approach refers to three separate bridges supported by six implants.
All-on-4 vs All-on-6: Which One Is Better?
When comparing All-on-4 vs All-on-6, many people assume that more implants always mean better results. In some cases, that’s true—but not always.
The right choice depends on your bone structure, lifestyle, and long-term goals.
All-on-6: When More Implants Make Sense
In certain situations, using more implants can provide added stability and long-term flexibility.
More Bone Available
If you have enough bone, dentists can place 6 implants farther apart. This reduces the chance that a problem with one implant will affect the others.
Smoking Habits
If you smoke and are not planning to quit, choosing more implants may provide additional support. Smoking can increase the risk of complications, so having extra implants can help maintain stability.
Younger Patients
For younger patients, planning with 6 implants can offer long-term peace of mind. If one implant fails later in life, the remaining implants can still support your teeth.
As part of this process, some dentists will plan each case directly in front of you during your consultation, showing exactly where the implants will be placed and why.
(Side note, if you want to see how I personally plan each case in front of my patients at their complimentary consultations, just click here.)
All-on-4: When Fewer Implants Are the Right Choice
There are many cases where 4 implants are not only sufficient—but actually the better option.
Limited Bone or Smaller Jaw
If bone is limited, placing too many implants too close together can create problems. An infection in one implant can affect nearby implants.
Older Patients
For older patients, 4 implants are often enough to provide a stable and lasting result. Adding more implants may not provide additional benefits and can increase costs unnecessarily.
There Is No One-Size-Fits-All Solution
The decision between All-on-4 vs All-on-6 should always be based on your specific situation.
Be cautious of:
- Clinics that only offer one option for every patient
- Recommendations that focus more on cost than proper planning
The best results usually come from dentists who:
- Plan each case carefully
- Explain their reasoning clearly
- Show exactly where and how implants will be placed
Dental implants rely on a biological process called Osseointegration, where the implant fuses with the bone over time.
If you’re still unsure, check out our guide on questions to ask before dental implants to better understand what to look for before starting treatment.
