Key takeaways
- The McGill consensus said widespread denture adhesive is one sign that conventional dentures are inadequate for many wearers.
- The alternative they named was a mandibular two-implant overdenture, tested against new conventional dentures for 6 months to 9 years.
- That overdenture still comes out. It clips on with a bar, ball, or magnet. It is not a fixed All-on-4 bridge.
- People in the trials found the two-implant denture more stable, easier for chewing and speech, and more comfortable.
| Option | What the 2002 statement supports |
|---|---|
| Denture adhesive with a conventional denture | Named as a sign that the prosthesis is inadequate for many wearers. The denture still rests on the ridge and the mucosa. |
| Mandibular two-implant overdenture | Recommended as the first choice for the edentulous mandible. Bar, ball, or magnet. More stable, easier chewing, more comfortable, easier speech than a new conventional denture in trials of 6 months to 9 years. |
| Fixed All-on-4 bridge | Not the prosthesis in that statement. A fixed bridge does not come out at night and does not use adhesive. It is a different plan. |
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See whether adhesive is the whole storyWhat did the McGill statement say about adhesive?
On 24 and 25 May 2002, a symposium at McGill University produced a consensus led by Feine, Carlsson, and colleagues, published in Gerodontology. Conventional dentures, they wrote, rely on the residual alveolar ridge and the mucosa for support and retention. Many people have trouble adapting, especially to the mandibular prosthesis. The sentence on adhesive is specific: "The widespread use of denture adhesives is one indication that these prostheses are inadequate for many denture wearers."[1]
They also wrote that numerous denture wearers report they cannot eat many foods, including hard or tough ones, and that diets change in unhealthy ways. That is a population statement. It does not measure one person's tube of adhesive, and this page will not turn it into a nutrition prescription.[1]
How a full denture compares with implants more broadly is in dentures compared with dental implants.
Is an implant-held denture the same as All-on-4?
The implant denture in the McGill statement is a removable lower overdenture on two implants. All-on-4 is a fixed bridge on four implants. The trials behind the consensus compared mandibular two-implant overdentures with new conventional dentures, for 6 months to 9 years. Attachment type did not change the direction of the result: bar, ball, or magnet. Participants were significantly more satisfied. They found the overdenture more stable, rated chewing various foods as easier, and were more comfortable and spoke more easily. Quality-of-life ratings were higher for people who received the two-implant overdenture against a conventional upper denture than for people with new conventional dentures.[1]
The conclusion is just as specific. A conventional denture was no longer the most appropriate first choice for the edentulous mandible. A two-implant overdenture should become the first choice. The upper denture is the one they said people usually manage. The lower denture is the one that moves.[1]
That overdenture is the family of treatment described in snap-on dentures versus All-on-4. It comes out. All-on-4 does not. The lower-jaw version of this evidence is in a lower denture versus lower implants.
Why does Renew separate adhesive, snap-on, and fixed teeth?
Adhesive is something a person adds to a denture that is already made. A snap-on denture is a denture retained by implants. A fixed bridge is screwed or attached so it stays in. The consensus is evidence for the middle option on a lower jaw, not a ranking of all three for every mouth.[1]
The implant surgeon places the implants. Tom Szarski, DD, is the denturist who designs and fits the teeth and the dentures with the on-site lab. A free consultation includes a 3D scan. The scan is where adhesive, a clip-in denture, and a fixed bridge get separated for one person, instead of being treated as one product.
Sources
Frequently asked questions
Does denture adhesive mean the denture is failing?
The McGill consensus treated widespread adhesive use as one indication that conventional dentures are inadequate for many wearers. It is a sign across a population, not a diagnosis of one tube in one bathroom. The statement focused on the lower denture.
What did the consensus recommend instead?
A two-implant overdenture on the lower jaw, as the first-choice treatment for an edentulous mandible. Trials of 6 months to 9 years, using bar, ball, or magnet attachments, found people more satisfied than with new conventional dentures. That denture is still removable.
Is that the same thing as All-on-4?
No. All-on-4 is a fixed bridge on four implants. The McGill statement is about two implants and a denture that clips on and comes out. A fixed full arch is a third option, described in the snap-on comparison.
