With regular dental check-ups, your dentist will be able to perform an x-ray of your teeth to determine whether there is any damage or decay underneath your crown. In some cases, the dentist may need to conduct a more in-depth oral examination to identify whether there is a cavity.
Symptoms of tooth decay under a crown
Inflamed, swollen gums. Increased tooth sensitivity. Toothaches or pain. Visible grey or brown spots at the base of the tooth.
Usually there is metal underneath the porcelain or the crown is made entirely of metal. This metal makes it impossible for the tooth structure inside of the crown to be seen on a radiograph (x ray). When decay under a crown is small, it is often difficult to detect.
Brown and Grey Spots in the Affected Area
Brown and grey spot formations are a distinct visual indicator of a potential infection or tooth decay under a dental crown. Spots can be visible on the white portion of a veneer, almost appearing like mould.
Seeing a dentist
Dentists can usually identify tooth decay and further problems with a simple examination or X-ray. Find your nearest dentist. It's also important to have regular dental check-ups.
If you get decay under a crown issues may occur that affect your oral health. Issues such as bad breath and sore gums may develop or the decay may extend deeper into the tooth, causing dental infection and may even mean the tooth cannot be saved! Tooth decay under a crown may be caused by bad oral hygiene.
In an X-ray, cavities are seen as dark areas in a tooth. Cavities start at the outside layer covering the tooth, called the Enamel, which has the lightest color in an X-ray. Cavities will then advance to the layer under enamel, called the Dentin, which is softer and has a darker color than enamel in an X-ray.
Fixing a Cavity Under a Dental Crown
If the crown was not part of a root canal and the cavity has reached the pulp chamber underneath it, it might be time for the procedure. The dentist or an endodontist will remove the crown, drill into the root to clean out the infection, seal the hole and attach a new crown.
Since dental crowns are recommended in cases where about ¾ of the tooth is affected by damage or decay, they are designed to fit on minimal remaining tooth structure. Therefore, there needs to be something to cement the crown to and enough tooth to provide internal support.
X-rays help your dentist diagnose problems in your teeth and jaws. In adults, X-rays show: Decay, especially small areas of decay between teeth. Decay beneath existing fillings.
Oral bacteria are tricky little rascals, and they can make their way underneath a crown, particularly if the person does not have good oral hygiene. When these bacteria get underneath the crown, they begin to convert any sugars that make their way into the crown to acids that eat away at enamel.
The average lifespan for a well-maintained dental crown is typically around 15 years. However, when taken care of properly, it is common to see them last upwards of 25-30 years.
Many cavities do not produce any symptoms whatsoever and even large cavities can exist without discomfort. However, leaving untreated and undetected tooth decay in your mouth for a long period of time can result in very painful (and costly) dental complications.
Small adjustments can be made to permanent crowns once on but, an attempt to avoid even these small adjustments is made in order to leave the crown in the best shape possible. This will ensure a long life for the crown as well as the best look overall.
A properly fitted crown should completely hide your tooth, leaving no space between it and the gums. However, sometimes a gap can form beneath the crown, and this can lead to irritating and embarrassing situations where food becomes trapped in these areas and needs to be removed with your toothbrush.
Most crowns last between five and 15 years before needing to be replaced (or at least repaired). In some cases it is obvious that you need to replace a crown because it has fallen out or suffered extensive damage; in other circumstances, it is less obvious that there is a problem with a crown.
Dental X-rays can be taken to evaluate the teeth for decay under dental fillings or even between teeth. If a filling has failed or decay is detected on the X-rays, the fillings will have to be replaced. If the recurrent decay is extensive, a dentist may need to use a crown to replace the filling.
In dental x-rays, healthy teeth appear white. The nerve inside the pulp consists entirely of soft tissue, so it has a dark color. Cavities appear as areas that are darker than tooth enamel. Our dentists use x-rays to detect cavities, and to determine how the decay has spread.
Visible holes or pits in your teeth: Cavities form tiny openings in teeth that gradually become larger. Discoloration: Teeth with cavities may appear yellow, brown, or black. Pain: Throbbing pain in your teeth is usually a sign of an infection, which means the cavity has reached your tooth's pulp (center).
Is it normal for my tooth to look black under my crown? It's not supposed to darken. Most of the time, tooth discoloration is caused by bacteria getting in the dental crown. It can also be the result of an inadequate seal on the crown.
Dental crowns that are fixed to a metal post, whether they are porcelain-fused-to-metal or composite, can have a gray tint in natural light. This is because the outer material doesn't obscure the dark metal beneath.