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Can I still get cavities if I have dentures?

A full denture will replace all the teeth in an arch and these false teeth will not get cavities. However, a partial denture replaces the missing teeth. The remaining teeth that hold the partial denture in place can get cavities. Especially where the clasps hook onto the teeth.

Maintaining good oral hygiene is very important. Even though false teeth will not get cavities, a build of tartar and calculus can accumulate on the denture and cause it to smell bad. Brushing your denture at night when you take it out and soaking it in a special solution will help prevent this from happening. 
Oftentimes a denture is placed on remaining teeth. If you have remaining teeth, then yes. Even if you wear full dentures, you still have to practice good dental hygiene.

When brushing, clean your mouth thoroughly—including your gums, cheeks, roof of your mouth and tongue to remove any plaque. This can help reduce the risk of oral irritation and bad breath. 

No, you cannot. Dentures are made of metal, plastic, and/or acrylic, and are immune to normal tooth decay. However, if you still have any natural teeth besides your dentures, they can certainly get cavities. You are also still susceptible to any soft tissue/gum issues (food trapped under them, etc.) Plus, the dentures themselves can stain and/or look dirty. So, good oral hygiene is definitely a must with dentures.

The teeth in dentures are made of porcelain or plastic. You cannot get cavities in these teeth. However, plaque and tartar can form on the denture making it smell and look dirty. This can be removed professionally by your dentist. If you have an over denture, the teeth under the denture can get cavities. Good oral hygiene and regular visits to your dentist are important.

You cannot get cavities in dentures. Denture teeth are made of plastic or porcelain, they don't decay. Only teeth decay in the presence of bacteria and carbohydrates. Denture teeth can wear, fracture or become dislodged from its base.

Dentures made out of metal, acrylic, and plastic (or any combination of) do not decay. However, teeth that support dentures are at an increased risk of decay and need to be maintained. 

There are three main reasons for this:
  1. Any type of tooth-retained denture (partial denture or overdenture) will have a tendency to trap food debris against the teeth that support and retain them.
  2. The extra stresses placed upon teeth that support dentures can introduce micro-fractures in tooth structure or cause gingival recession that can create an environment that is conducive to decay.
  3. Anything that covers all or a portion of teeth limits the protective effects of saliva and can make these surfaces of teeth more prone to decay.
Careful monitoring of diet and routine dental hygiene can reduce the risk of decay significantly.
If you have any natural teeth remaining, they can get a cavity. Therefore, if you have a partial denture (one that sits on some natural remaining teeth), you can indeed get a cavity in those teeth and in fact, research has shown that the remaining teeth are more likely to get cavities due to higher stress from chewing and biting on them as well as potential for the caries bacteria to more easily attach to those teeth.

If you have had all your teeth removed and replaced with dentures, you will not get a cavity. However, sometimes the denture teeth can stain, chip or break, making it appear as though they have a "cavity". In such a case, this area is usually repairable. Your dentist can either make the repair chair side while you wait, or often, will send your denture to a specialized laboratory which will perform a customized repair of the defect.
Dan Jenkins
Dentist
While you will not get cavities in the denture teeth you can break the teeth and the plastic material can be worn away if they are not cared for properly. If you have your own natural teeth still in your mouth you could of course still get cavities in them. If you are not sure if you have any natural teeth in your mouth see your dentist for an examination. You should have your dentures checked out as well as the soft tissues in your mouth by a dentist at least once a year. While you may not get cavities, you could develop other problems under the dentures!
The only way that you can get cavities if you are wearing a denture is if the denture is attached to root canalled remaining dental roots.
Although you obviously can't get cavities in the false teeth themselves, you can still get cavities in any remaining natural teeth you have if you have dentures. Because of this, it's important to maintain good oral hygiene habits when you have dentures. If you have many remaining teeth, brush your teeth twice a day and floss daily. If you have just a few remaining teeth -- for instance, if you have an overdenture -- it's still important to brush your teeth twice a day or as directed by your dentist. It's important for your remaining teeth to stay healthy so they can support and stabilize your dentures.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.