What is the difference between All-on-4 implants, full-arch implants, and dentures?

When a parent needs to replace most or all of their teeth in one jaw, the options available can feel bewildering. All-on-4, full-arch implants, implant-supported dentures, traditional dentures. The terminology overlaps, the prices vary enormously, and different providers seem to recommend different things. It helps to understand what each option actually is before you start comparing them.

Traditional dentures are the simplest and least invasive choice. They are removable prosthetic teeth that sit on the gums, held in place by suction, adhesives, or clasps onto remaining teeth in the case of partial dentures. No surgery is involved. They are significantly less expensive than any implant-based solution, with full dentures typically running $1,000 to $5,000 depending on materials and provider. The limitations are well known: they can slip when eating, they require adhesives, they need to be removed and cleaned daily, and because they sit on the gums rather than being anchored in bone, they do not prevent the jaw from continuing to resorb over time.

All-on-4 is a specific surgical technique, not a brand, in which four dental implants are placed per arch, two at the front of the jaw and two angled toward the back. Those four implants then support a fixed prosthesis, a full set of teeth that is screwed into place and is not removed by the patient. The angled placement of the rear implants is designed specifically to make the most of available bone, which is why All-on-4 often eliminates or reduces the need for bone grafting that a more traditional approach might require. A temporary prosthesis is usually fitted the same day as surgery, which is where the phrase “teeth in a day” comes from. Permanent teeth follow several months later once the implants have integrated. Per arch, All-on-4 typically costs between $15,000 and $35,000.

Full-arch implants is a broader term that covers any implant-supported replacement of an entire jaw’s worth of teeth. All-on-4 is one version. All-on-6, which uses six implants per arch for additional support, is another. More traditional full-arch approaches may use eight or more implants. The greater the number of implants, the more stable and natural the result tends to be, and the higher the cost. Full-arch solutions using six or more implants generally run $20,000 to $50,000 per arch, and more for premium materials like zirconia.

Implant-supported dentures, sometimes called snap-in dentures, occupy a middle ground. Two to four implants per arch provide anchor points for a removable denture that clips into place. The denture is more stable than a traditional one because it locks onto the implants, but it is still removed for cleaning. Cost per arch typically runs $8,000 to $13,500. For older adults who want better stability than traditional dentures without committing to a fully fixed solution, this option is worth considering.

For families deciding between these options for a parent, the key questions are not just financial. Can your parent tolerate a surgical procedure under local or general anaesthesia? Do they have sufficient bone, or are they a candidate for grafting? Will they be able to maintain the hygiene required, which for fixed implant solutions is more involved than for removable dentures? If your parent is in an assisted living facility, will staff be able to help with the cleaning routine that implant-supported teeth require?

The families who tend to be happiest with the outcome are the ones who asked all of those questions before choosing, not after.

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