Sore Spots and Adjustments: What to Do, and What Not to Do

A new denture rubs. The ADA's own patient guidance treats this as ordinary: "New dentures may feel awkward for a few weeks until you become accustomed to them", with looseness and "minor irritation or soreness" among the things people notice early. Eating and speaking take practice.

What is not ordinary is soreness that keeps returning in the same place, gets worse rather than better, or comes with any of the signs at the top of this page. And the thing that fixes most of it is a short appointment that costs less than almost any other line on a fee schedule.

What an adjustment actually is

A dentist identifies the exact point where the denture is pressing — often by marking the tissue and transferring the mark to the appliance — and removes a very small amount of material from that point, then checks the bite. It takes a few minutes, and it is precise because a denture that has had too much taken off in the wrong place does not fit better, it fits worse.

On the published schedules it is one of the cheapest lines there is: $20.00 on the Pennsylvania Medical Assistance Program Dental Fee Schedule effective 1 August 2026, $47.42 on the Montana Healthcare Programs Denturist Services Fee Schedule effective 1 July 2025. The Washington Department of Corrections schedule effective 1 January 2025 has no adjustment line at all. Read 24 September 2026; all payer rates, not private-practice fees. Set those against the appliance itself on what dentures cost, read off published fee schedules, and the case for keeping the appointment rather than improvising makes itself.

Pennsylvania's rules around it are worth knowing: four adjustments a year, and none paid until 180 days after the denture was fitted — its denture heading says the fee already includes "Routine Post-Delivery Care", so the early ones are expected to sit inside the denture fee rather than outside it.

The three things people do instead

Filing or sanding it themselves. This is the common one and it is the one that cannot be undone. A denture is a fitted surface: taking material off changes where the chewing load lands, which moves the pressure somewhere else on the ridge. You then have two sore spots instead of one, and an appliance a dentist has to work around. There is no home version of the marking step that tells you where to remove material.

Packing it with more adhesive. The FDA is direct about the limits here: "a large amount of denture adhesive will not necessarily address problems with ill-fitting dentures, and prolonged use of ill-fitting dentures may lead to an increase in bone loss." It also gives a usable benchmark — "a 2.4-ounce tube of denture adhesive used by a consumer with upper and lower dentures should last seven to eight weeks" — so if a tube is going in a fortnight, that is a measurement telling you the fit has changed. The same page warns that overusing zinc-containing adhesives, particularly alongside other sources of zinc, "can contribute to an excess of zinc in your body", and that too much zinc "can lead to health problems such as nerve damage, especially in the hands and feet". Zinc-free products exist.

Taking it out and leaving it out. Understandable, and it postpones the problem rather than solving it: the ridge keeps changing whether or not the denture is being worn, and the NHS notes dentures "may become loose as your gums and jawbone shrink or change shape". A denture left in a drawer for months often no longer fits when it comes back out.

When a sore spot is a fit problem rather than a settling-in problem

The NHS lists the signs that should take you back to a dentist: dentures that "click when you're talking", dentures that "slip", dentures that cause pain, and "very red or bleeding gums, or bad breath".

Add to that list, from the schedules' own logic: sore spots appearing in a new place months after the denture settled, and adhesive consumption climbing. Both point at fit rather than at adaptation, and fit is answered by an adjustment or a reline — what a reline is and what it costs covers the difference.

Redness across the whole area the denture covers is a different thing again. A 2023 review of denture stomatitis in the International Journal of Environmental Research and Public Health by Abuhajar and colleagues describes the condition as driven chiefly by a Candida albicans biofilm, with poor denture hygiene, continuous denture wear, ill-fitting dentures and the porosity of the acrylic among the local factors, and lists "adjusting or re-fabricating poorly adapting dentures" among the things its management involves. That is not something to treat at home either.

What you can do that costs nothing

• Keep the review appointments, including the ones that feel unnecessary.
• Wear the denture before the appointment. A dentist cannot mark a pressure point on tissue that has not been under pressure for three days. Counter-intuitive, and it is the single most useful thing you can do to make the visit worth it.
• Write down where and when it hurts — which side, eating or resting, since when.
• Eat soft, cut small, chew on both sides while things settle.
• Clean it properly, which is a separate routine from cleaning your mouth: how to clean dentures without wrecking them.

The line that is not negotiable

Nothing on this page is treatment advice, and nobody who wrote it has dental qualifications. It is a description of what an adjustment is, what it costs on three published schedules, and what the ADA, the NHS and the FDA say in their own words. The sore spot in your own mouth needs somebody to look at it.

And the five lines in the box at the top of this page are not denture problems at all. A swollen face, a fever arriving with the pain, breathing or swallowing that has become hard, bleeding nobody can stop, a sore patch still there after three weeks: each of those is a same-day medical problem, and none of them waits for a dental appointment.