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Fixed on Implants (FOI)

Fixed on Implants (FOI)

Reviewed
November 11, 2026

The short answer

A full set of teeth secured to your implants. You don't take them out at home. Your dental team removes them when needed.

What it is

Fixed on implants, or FOI, is a full set of teeth secured to your implants. You don't take them out at home. When they need professional cleaning, your dental team removes them.

Your denturist plans and designs the teeth, with how you want to look and eat in mind. Our surgical partner places the implants. Your denturist and our surgical partner look at your mouth in person first. Then they work out with you how many implants fit and whether this option suits you.

Next to a denture on implants (DOI), the difference is what happens day to day. A DOI comes out for cleaning. FOI teeth stay in at home, and your dental team takes them out when they need to.

Other names you may see

Fixed implant dentures. This is a common name for the same treatment. The word dentures can sound like something you take out, so it helps to know that these stay in at home.

All-on-4. A full set of teeth held by four implants is often called All-on-4. That's a brand name for the same general idea.

All-on-6. This uses the same idea with six implants in one jaw. The number only describes how many implants hold the teeth. It doesn't tell you which number fits your mouth. You'll settle that in person.

Also called

Fixed implant dentures All-on-4 (a brand name) All-on-6

Not to be confused with

Dentures on Implants (DOI): a denture that snaps onto implants and comes out for cleaning.

What we call it

Permanent Teeth (removed only by your dental team)

What it means for you

If you're hoping to get your teeth back, FOI is one option to ask about. There's nothing to take out at home, and your dental team takes the teeth out when they need professional cleaning. Your denturist can talk you through how it differs from a snap-in denture.

Common questions

What is fixed on implants (FOI)?

Fixed on implants, or FOI, is a full set of teeth secured to your implants, and you don't take them out at home. When they need professional cleaning, your dental team removes them. You may also hear this kind of treatment called fixed implant dentures. Your denturist and our surgical partner talk with you about it once they've looked at your mouth.

What are fixed implant dentures?

The name fixed implant dentures describes a full set of teeth secured to implants that you don't take out at home. At Saberton Denture & Implant, we call it fixed on implants, or FOI. When the teeth need professional cleaning, your dental team removes them.

What is All-on-4?

A full set of teeth held by four implants is often called All-on-4. All-on-4 is a brand name, so you may also hear the same idea called fixed implant dentures. We call it fixed on implants, or FOI. Your denturist and our surgical partner work out with you in person how many implants fit your mouth.

Not sure which option fits you?

A free initial discussion is a short call with our team about where you are and what you'd like your teeth to do for you.

Book your free initial discussion

Information is educational and not medical advice. Treatment suitability and costs vary by patient. A denturist or surgeon will confirm your options during a consultation.