Why does the tooth turn black under the crown?

• Publication date: 06/15/1404
• Editing date: 06/15/1404
• 0 views
• Study time: 8 minutes
• Confirmed by: Dr. Nazi Banianian

Reasons of black under a crown:

• tooth decay under the crown
• leaking or separation of the crown adhesive
• use of metal or metal ceramic crowns
• inflammation and disease Gum
• Not respecting oral and dental hygiene
• Cigarette and colored drinks
• Oldness and wear of veneer

Solutions to solve the problem:

• Replacing the old veneer with a new veneer
• Using ceramic or zirconia veneers instead of metal ceramics
• Repairing or treating tooth decay below Covering
• Creating and treating gingivitis
• Maintaining daily oral and dental hygiene
• Regular visits to the dentist for periodical checkups

Approved by Dr. Benianian dental specialists

The content of this article is only to increase your awareness. Before taking any action, seek advice from Dentistry Dr. Benyanian.

Dental crown is a protective layer used to repair and cover cracked or decayed teeth. In addition to protecting the damaged tooth, these veneers help to beautify the smile and increase the useful life of the tooth. However, sometimes after some time the color of the tooth under the veneer changes and gradually turns black. Blackness that can eventually be a sign of serious decay or infection in the tooth tissue under the veneer. Therefore, it is very important to understand the causes of black teeth under the veneer and its symptoms for prevention and timely treatment.

In the rest of this article from the dental website of Dr. Benianian, we will discuss the most important factors of this problem, warning signs, methods of prevention and treatment.

The most important reasons for blackness under the tooth veneer

Many reasons can cause darkening or blackness of the tooth under the veneer. These factors can be divided into two main categories: "internal causes" and "external causes".

Internal causes are related to the problems of the tooth itself, such as decay and infection, and external causes are related to the way the crown is made and maintained and the person's daily habits.

The following are the most important reasons for darkening under the crown:

1. Tooth decay under the veneer

If the tooth under the veneer is not completely denervated or filled before the veneer is placed, or there are small cracks in it, bacteria may gradually enter the tooth canals and cause deep decay. They cause tooth decay, especially the tooth decay under the crown.

Research shows that if you neglect your oral hygiene, smoke or drink alcohol, the decay and blackness under the crown can progress quickly and lead to severe tooth decay.

So in other words, installing the crown itself There is no guarantee of 100% protection of the tooth against decay, and the internal factors of the tooth also play a role in this field. Improper installation or poor adhesion of the veneer

If the dental veneer is not placed on the tooth properly and with sufficient accuracy (for example, there is an empty space between the edge of the veneer and the tooth) or there is not enough glue between the tooth and the veneer, a space is created where bacteria and food particles can easily enter from the side and cause discoloration and decay.

One of the first signs of this problem is blackening under the dental veneer at the junction Covered with gum. In fact, when the veneer is separated from the gum, bacteria grow in that space and over time the color of the tooth under the veneer and even the surrounding gum darkens.

3. Low-quality or cheap materials in making veneers

The quality of materials used in dental veneers has a direct effect on the tooth's resistance to discoloration and decay. For example, the use of poor quality material (poor composite porcelain or cheap metal) may be problematic in the long term.

For example, veneers that have a metal base may become thinner after a while and the underlying metal can be seen, which creates a dark and line-like appearance on the edge of the tooth. be.

4. Gum recession or receding gum diseases such as periodontitis or reduction of gum tissue due to various causes (such as chronic inflammation or plaque accumulation) can cause the gum to recede from the tooth. As a result, when the gum recedes, the edge of the veneer is no longer hidden under the gum, and the inner layer of the tooth and the edges of the veneer are exposed to the oral environment. This opens the way for bacteria to penetrate and food particles remain, and eventually causes the appearance of a black line at the junction of the gum and the veneer and blackening under the veneer. Benianian:

The presence of bacterial infection in the gums in this situation is aggravated and endangers the overall health of the covered teeth. In such a situation, treatment of the gum problem (for example caries and gum flap surgery) is necessary to help reduce gum recession and prevent the spread of blackness under the veneer.

5. Failure to observe oral hygiene and improper nutrition

Failure to brush teeth regularly, failure to use dental floss and mouthwash after eating causes food particles and microbial plaques to accumulate under and around the coating. Over time, this mass accumulation leads to darkness and tooth decay under the veneer.

If the diet is full of sweets, sticky and acidic foods (such as carbonated soft drinks or sour fruits), over time the tooth enamel will weaken and the ground for decay will be created.

In other words, unhealthy eating habits, along with poor oral hygiene, are one of the important factors of tooth darkening and increasing the likelihood Decay under the cover is considered.

6. Smoking, coffee, tea and alcohol

Smoking and hookah use, in addition to changing the overall color of the teeth, can directly darken the teeth under the veneer. Because tobacco smoke contains coloring compounds that eventually accumulate under the edge of the veneer and cause blackness.

That is why it is recommended to stop smoking to prevent your teeth from turning black under the veneer.

7. Abrasion and loss of tooth enamel

Tooth enamel is the hard coating on the tooth and it can become worn or thin due to various factors. Factors such as severe wear of the teeth (for example grinding teeth) or erosion by eating acidic foods, along with not taking enough care, cause the protective enamel of the tooth to be destroyed.

When the tooth enamel becomes thin or cavities are formed in it, the darker color of the underlying layers of the tooth is visible. In this case, even if the veneer is installed on the tooth, the darkening of the underlying tissue makes the color of the veneer appear darker.

In simple words, the wear of the tooth enamel provides the basis for the color of the veneer and the underlying tooth to appear black.

Why does the gum turn black after the tooth veneer? href="https://drbonyanian.com/dental-crowns/">Tooth crowning usually happens due to the use of metal veneers or metal-ceramics. When the metal comes into contact with the gum tissue, it may change the color of the edge of the gum over time and create a dark halo.

If oral and dental hygiene is not well maintained or gingivitis occurs, the possibility of gum discoloration due to infection of the veneered tooth will increase.

ceramic dental crown or zirconia dental crown has solved this problem to a large extent.

warning signs of blackness under the crown

Early detection of blackness under the crown is very important because this condition is often a symptom It is decay or infection that needs treatment. Among the warning signs that should be taken seriously are:

• Obvious discoloration or darkening: One of the most obvious signs is observing a discoloration (darkness or blackness) on the edge of the crown or the surface of the tooth. Sometimes, by looking in the mirror, you can see that the edge part of the cover has a black or gray line, which is a sign of bacteria penetration under the cover.
• Tooth sensitivity or pain: If the tooth under the cover is decayed or infected, you may feel sensitivity or pain when eating cold, hot or sweet foods. Throbbing or sudden pains in the place of the covered tooth and around the gums are warning signs.
• Gum swelling and pain: Swelling, redness or painful gums near the covered tooth can indicate gum infection or pus accumulation. This condition is usually accompanied by mild or sharp pain and requires a medical examination. Loosening or falling of the veneer: If the decay under the veneer has progressed, sometimes the dental veneer does not adhere well to the tooth and may become loose or even fall out. Therefore, take it seriously if the cover suddenly loosens or falls. Because this situation usually shows that the lower layer of the tooth is destroyed to such an extent that it is not able to hold the crown. Under the dental crown

  By following a few simple tips, you can minimize the possibility of blackening under the crown. The most important solutions are:

  Prevention method DescriptionChoosing the right materials and doctorUsing high-quality materials and visiting a specialist dentist for accurate installation of the veneer.Daily oral and dental hygieneBrushing at least twice a day, flossing daily and using mouthwash to clean the edges of the veneer.Regular dental visitExamination every 4-6 months to identify problems early and immediate repair.Avoid smoking and colored drinksQuit smoking and reduce the consumption of coffee, tea, soft drinks and alcohol to prevent stains and blackness.Healthy dietConsumption of dairy products and vegetables to strengthen tooth enamel and reduce sweet and sticky foods.

  Methods to treat and repair blackness under the veneer in case of a problem

  If, despite following hygiene tips, your undercover gets blackened or decayed done, there are several treatment methods that the dentist chooses based on the severity of the problem:

  • Tooth restoration and filling
  • Tooth root treatment (nerve removal)
  • Tooth bonding or scaling
  • Complete replacement Cover

  After any treatment, post-operative care is very important. The dentist usually recommends visiting the office a few days after the repair or new crown to check your health and hygiene.

  Usually, it is recommended to check the condition of the tooth a few weeks after the treatment to make sure that the infection or decay has not recurred. Bacteria can enter from the edges of the cover and cause decay and blackening of the tooth underneath.

  Inaccurate installation of the cover, use of poor-quality adhesive or very small gaps between the tooth and the cover will also cause damage and decay.

  

  

  Effect of tooth darkening under a crown on general oral and dental health

  Leaving blackness or decay under a crown without treatment can have adverse consequences for oral health and even general health. Especially considering that the accumulation of bacteria and plaque under the coating eventually causes more damage to the tooth and the spread of infection to the gums.

  This infection can penetrate the jawbone tissue around the tooth and in severe cases lead to a dental abscess (accumulation of pus around the root). In addition, if the damaged tooth is not treated in time, it may eventually require extraction or surgery, which itself means a missing tooth and higher treatment costs.

  Dental studies (Is Tooth Decay Under a Dental Crown a Serious Problem) show that infection and advanced decay under the crown can They cause severe tooth sensitivity and pain and gradually weaken the structure of the tooth and surrounding bone.

  In fact, if not controlled, the bacteria causing decay may enter the bloodstream through bleeding gums and cause more serious problems for the body.

  For example, in very rare cases, an untreated dental infection can lead to sepsis (widespread blood infection) or even abscess in other organs such as the brain.

  Although these cases are very rare, they show that maintaining dental health and timely treatment of oral infections are also important for the overall health of the body.

  Final summary of the issue of blackened teeth under veneers

  Blackened gums or damaged teeth under veneers are common problems that many Patients experience. Choosing a specialist dentist, using high-quality materials, maintaining good oral hygiene and regular check-ups can prevent these problems to a large extent.

  If you notice a change in the color of your gums or feel pain and bad breath, be sure to see a dentist as soon as possible to prevent the problem from progressing.

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    Frequently asked questions about why the tooth cover turns black?

    It can be damaged.

    What should be done to prevent damage under the veneer?

    Regular brushing, flossing, mouthwash and periodic examinations are the best solutions.

    What type of veneer is less likely to cause black gums?

    All-ceramic and zirconia veneers look more natural and They make the gums healthier.

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