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!
A crown is connected to a natural tooth underneath it. Because of this, decay can form around the edges of a crown. The only way to permanently fix a crown with decay around the edges is to remove the old crown, remove the decay, and do a new crown.
Additionally, X-rays pass directly through porcelain, meaning that when patients receive X-rays on porcelain crowns, dentists can actually see what is occurring underneath the crown and diagnose potential problems before they destroy unnecessary tooth structure and potentially cause root canals.
Contrary to popular belief, a cavity can develop beneath a crown. Tooth decay can form at the margins of a crown or even underneath its surface. But because crowns cover so much of a tooth's surface, it can be difficult to spot these cavities without careful examination.
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.
Crowns can be used for a severely decayed tooth that can no longer be saved. Drilling the badly decayed section can often lead to cracks. Thus, protecting it with a crown can stop the decay from getting worse. When you misplaced any tooth in your mouth, the perfect treatment for proper restoration would be an implant.
Redness and tenderness around the crown. Swollen or sore gums surrounding the crown. A constant sensation of warmth on one side of your mouth. Yellow, clear or greenish discharge near the crown.
What causes tooth crown pain? Infection – patients who have dental crown procedures that have also not previously undergone a root canal, means that their tooth still has roots. If a crown is applied incorrectly or is the wrong size, it can put pressure on the nerve and roots of the tooth, which can lead to infection.
Here are the signs of a tooth crown infection: Redness at or around the site of the crown placement. Swelling of the gums or jaw around the area that now has the crown. Tenderness or pain around the crown.
Brushing two times a day with a fluoride toothpaste. Flossing daily. Using a mouthwash. Adding a water flosser to your regimen – they're especially effective around crowns and bridges.
The biggest factor a dentist looks at when deciding if a tooth can be saved is how much “good” tooth structure there is left. If the tooth is broken at the gumline and has a big cavity that goes down to the bone then there is little hope that the tooth can be saved.
This blackline surrounding your gum occurs because light, which can pass through natural teeth, is unable to pass through the crown's metal, makes the crown's porcelain fusion look darker, and restricts the amount of light in the root and gum areas.
The gray line around the edge of your old crowns is most probably caused by the metal edge of the crown showing through the gum.
The average lifespan of a dental crown
Dental crowns should last around 15 years with proper maintenance. If patients take good care of the crown, they can last up to 30 years. Crowns made of porcelain can endure anywhere from 5 to 15 years.
Fixing a Cavity Under a Dental Crown
If a cavity is along the margin of a dental crown and does not go very deep into the tooth, it might be able to be fixed with normal dental filling material. In most other cases, the dental crown probably will need to be removed, the cavity filled, and a new crown placed on top.
Tooth sensitivity to temperatures (hot or cold) or sugary foods and drinks. Pain or tenderness in the areas surrounding the crown. Increasing redness at the area of crown placement. A discharge of yellow, green, or clear fluid or pus that appears to be draining or leaking out around or under the crown.
Dentists can not see through a metal restoration in an x-ray (whether it is a crown/bridge or filling), thereby inhibiting their ability to diagnose or determine if there is a problem underneath. However, they can still see the root of the tooth so an x-ray is still needed.
If the decay reaches your tooth's main structure, called dentin, then a filling can replace the lost tooth structure after your dentist has cleaned the cavity of bacteria and infection. However, if it reaches the tooth's center chamber, called the pulp, a filling may no longer suffice to address it.
If the deepest layers of the pulp become infected, it may be too late to save the tooth. In addition, if a large portion of the tooth is lost and a crown cannot be placed on what's left, root canal treatment is no longer a viable solution.
Once bacteria have entered your tooth, it may be too late for a filling because we will need to prevent or treat an existing infection. However, it's never too late for dental care!
An odor originating from your crown is usually a sign that there is bacteria growth or an infection related to your crown. This bacteria can spring up due to a failed root canal or a crown that doesn't fit properly whether it is loose, cracked or there is a gap between adjacent teeth.
Poor hygiene can lead to plaque and buildup that forms around the crown. If this happens, the bacteria present can produce bad breath. Poorly sealed crown margins may lead to leakage in which bacteria can seep under the crown and cause decay. Decay around or under a crown can also lead to bad crown smells.
In most cases, a black line forms because the metal from the crown is showing through. Since older dental crowns are typically made of porcelain fused to metal, the metal will eventually become exposed as the gumline moves and recedes over time.