Dra. Cléo Salustiano In this article
SummaryStep by stepWhat kind of break is it?How the dentist fixes it — and when a new one is betterFAQRead nextBroken denture or partial denture: what to do (and what not to do)
Quick summary of this article+
Broken denture: collect the pieces, rinse in cold water, keep it dry and do not glue it at home. A thin crack that is not opening allows careful use until the appointment; a denture broken in two, a loose tooth or a broken clasp need repair at the office. A loose denture tends to break again and may need a reline or replacement. A loose implant-supported bridge should not be touched at home. With a sore, pain or if you cannot eat, get care the same day.
Broken denture or partial denture? What to do now: collect all the pieces, rinse them in cold water, keep the denture dry in a clean container or bag and do not glue it at home — superglue distorts the fit, irritates the gums and can make a proper repair impossible. If the denture has hurt your mouth, you cannot eat, or the broken piece holds your front teeth, see a dentist the same day or the next.
Most fractures of complete and partial dentures can be repaired. The real question is whether to repair or replace it: an old, loose denture, or one that keeps breaking, is usually signaling that the fit is no longer good, and a repair on its own does not last long. This guide shows how to identify the type of break, what to do in each case and when a new denture makes more sense.
If it is a fixed full-arch bridge on implants (an implant-supported denture) that came loose, cracked or is wobbling, do not try to remove or tighten it: keep any loose part and get care, because the screw or the implant may need to be checked.
This article comes from Dr. Cléo Salustiano's dental office in Mooca, São Paulo (care in English, Portuguese and Spanish). See the dental implants page to learn how the treatment is done here and book your assessment.
Step by step
- Collect all the pieces. Look for the fragments, the tooth that came off or the clasp. Even a small piece helps the dentist put the denture back together accurately.
- Rinse in cold water. Hot water can warp the acrylic base. Use cold or room-temperature water and, if needed, a soft brush with mild soap.
- Keep the denture dry and protected. Put the pieces in a clean container or bag without forcing them together. Forcing can widen the crack or chip the edges.
- Do not use any kind of glue. Superglue and household glues are not made for the mouth, leave ridges that hurt the gums and get in the way of a proper repair.
- Look after your gums if they were hurt. A warm salt-water rinse soothes sores. If the denture is hurting you, leave it out until the appointment.
- Book an assessment and bring the denture. Bring all the pieces. With pain, a sore or if you cannot eat, get care the same day or the next.
What kind of break is it?
A thin crack in the base shows up as a line in the acrylic, usually in the middle of the palate (upper denture) or at the front. It is material fatigue, often because the denture is already loose and flexes with every bite. You can still wear it carefully if the line is not opening, but it should be checked within a few days.
A denture broken in two usually results from a fall into the sink or onto the floor. Keep both halves without trying to fit them together. When the edges are intact, repair is usually possible.
A denture tooth came off: the artificial tooth has come away from the base. This is one of the simplest breaks to fix, as long as the tooth was kept.
A broken or bent clasp (removable partial denture): the clasp is the metal arm that hugs a natural tooth. Bending it with pliers at home usually makes the fit worse and can snap the metal; bring the denture as it is.
A loose denture that hurts is not exactly a break, but it is the warning sign before many fractures. Gums and bone change over time, the denture loses support and starts to rock. The usual solution is a reline (remaking the inner surface so it fits again) or a new denture.
| What you see | What it usually is | What to do |
|---|---|---|
| A thin line in the acrylic that is not opening | Fatigue of the base | Wear it carefully and have it checked within a few days |
| Denture broken in two | Complete fracture | Keep the pieces without forcing them and book an assessment |
| A denture tooth came off | Artificial tooth debonded | Keep the tooth; it is usually reattached at the office |
| Broken or bent clasp | Metal fatigue | Do not bend it at home; bring the denture |
| Denture rocking and hurting | Loss of fit | Assess a reline or a new denture |
| Implant-supported full-arch bridge loose or cracked | Loose screw or fracture of the fixed prosthesis | Do not try to remove it; get care soon |
How the dentist fixes it — and when a new one is better
At the appointment, the denture and your mouth are examined together. For cracks and fractures with intact edges, the pieces are joined with acrylic resin and the fit is checked in the mouth. A tooth that came off is usually reattached. A broken clasp can be replaced on some dentures.
When the denture is loose, a repair on its own tends to break again at the same spot. In these cases, a reline or a new denture is usually the better option. No professional can guarantee how long a repair will last without examining the denture and the gums.
To avoid new breaks: clean the denture over a sink filled with water or over a towel (it cushions falls), use a soft brush and mild soap, never hot water or bleach, take it out at night when advised and have regular check-ups — the evidence-based guidelines for complete denture care recommend regular follow-up with a dentist to check fit and gum health.
See also our guide to dentures: types, adhesive and care.
- Felton D, Cooper L, Duqum I, et al. Evidence-based guidelines for the care and maintenance of complete dentures: a publication of the American College of Prosthodontists. J Prosthodont. 2011;20(Suppl 1):S1-S12.
My denture broke. What should I do first?
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Collect all the pieces, rinse them in cold water, keep them in a clean container or bag and do not glue them at home. Then book an assessment and bring the denture.
Can I use superglue on my denture?
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No. Superglue is not made for use in the mouth, can irritate the gums, leaves ridges that hurt and makes a proper repair harder or impossible.
Can I wear a cracked denture until the appointment?
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If the crack is thin, not opening and the denture does not hurt, you can wear it carefully for a few days. If the line opens, the denture feels rough or there is pain, leave it out until the appointment.
Can a broken denture be repaired?
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In most cases, yes, especially when the fracture edges are intact and all the pieces were kept. The assessment shows whether a repair is the best option or the denture needs replacing.
A tooth came off my denture. Do I need a new one?
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Usually not. The artificial tooth is generally reattached to the base. Keep the tooth and bring it along.
The clasp on my partial denture broke. What now?
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Do not try to bend or fix it with pliers. Bring the denture as it is: on some, the clasp can be replaced; on others, the assessment points to a new partial denture.
Why does my denture keep breaking?
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The most common reason is a loose fit: without even support, the denture flexes with every bite and breaks at the same spot. Drops during cleaning and very old dentures also play a part.
What is a denture reline?
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It means remaking the inner surface of the denture so it fits the gums again, since gums change over time. It helps the denture stop rocking and lowers the risk of new breaks.
My implant-supported bridge came loose. Can I tighten it?
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No. Keep anything that came off and get care. A loose screw or a fracture of the fixed prosthesis needs to be assessed so the implants are not overloaded.
Is a broken denture an emergency?
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It is urgent when it hurts your mouth, causes pain, stops you from eating or involves the front teeth. Otherwise, book an assessment within the next few days.
Can I wash my denture in hot water to disinfect it?
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No. Hot water can warp the acrylic. Use cold or room-temperature water, a soft brush and mild soap.
How much does a denture repair cost?
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It depends on the type of break, the material and whether the denture still fits well. The fee is given at the appointment, after examining the denture and your mouth.
Where can I get a denture repaired in Mooca, São Paulo?
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At Dr. Cléo Salustiano's dental office (CRO-SP 170844), Rua Hipódromo, 1141 – Mooca, near Bresser-Mooca metro station. Open every day, including Sundays and holidays, from 8 a.m. to 10 p.m., by appointment via WhatsApp +55 (11) 97409-7834. Care in English, Portuguese and Spanish.
