Why Do People Have Grey Teeth? Causes & Ways to Fix

grey teeth

Have you ever wondered why some people have grey teeth? Maybe you’ve noticed your own teeth turning grey. Don’t worry, it can happen to anyone, and there are different reasons behind it. In this article, we’ll explore why teeth can turn grey and how dentists can help.

Causes of grey teeth

Sometimes teeth can have different colours, and here are some reasons why it happens.

Medicine Troubles

Sometimes, certain medicines called tetracyclines can make grey teeth. This usually happens to kids whose teeth are still growing. If a mom takes these medicines during pregnancy, it can affect the baby’s teeth too.

Dental Work

When dentists fix cavities or restore teeth, they use special materials. Sometimes, these materials can cause teeth to turn gray. For example, metal crowns or silver fillings may make teeth look greyish.

Accidents and Injuries

Did you know that accidents can make teeth go grey too? When a tooth gets hurt badly, it may not get enough blood and nutrients to stay healthy. As a result, it can become grey or even die.

Tooth Decay

Tooth decay is when bacteria eat away at your teeth. If this decay gets really bad, it can cut off the blood flow to a tooth, causing it to turn grey and lose its color.

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Getting Older

Just like people, teeth can change as they get older. They may start to look a little greyish-blue, and that’s completely normal.

Other reasons which might cause grey teeth

Natural Tooth Color

You may not be aware, but teeth naturally come in a variety of colours and shades. The appearance of certain people’s teeth is impacted by a rare hereditary disease called dentinogenesis imperfect. Their teeth may be weaker than usual and their baby and adult tooth’s enamel may seem blue-gray or yellow-brown. Talk to your dentist if you suspect you might have this issue so they can perform a checkup and provide you with a definitive diagnosis. However, since this ailment is uncommon, there may be other causes for your teeth turning grey.

Early Antibiotic Exposure

Tetracycline is a particular antibiotic that can cause discoloration in adult teeth if it is used when you are still in the womb or when you are a young child. These teeth may have streaks of blue-gray or yellow-brown discoloration. Unfortunately, brushing your teeth won’t remove these stains because they are permanent. The good news is that you can whiten your teeth with the help of cosmetic procedures. The solutions that might be the most suitable for you can be discussed with your dentist.

Dental Restorations for grey teeth

When you have dental fillings, they may may cause teeth turning grey. If you had a dental amalgam filling, which is a silver-colored filling, you might have seen this. This occurs as a result of the blue-grey appearance of materials including dental amalgam, glass ionomer, acrylic, porcelain, and metal crowns on the surface of your tooth. This is so that the metallic colour may be seen through the porcelain or enamel. If silver fillings are the source of your grey or blue teeth, your dentist can replace them with white fillings to improve the appearance of your teeth.

Dead Teeth

It may be indicative of dead teeth if only one or a few of grey teeth. Although they appear lifeless, teeth really contain live tissue. The living components inside your tooth may die as a result of an accident or infection, and the tooth may turn dark pink, grey, or even black. Make an appointment with your dentist if you believe that one or more of your teeth are dead. An infection can develop when bacteria get inside the cavity of a decaying tooth. A severely damaged tooth may require removal by your dentist, but in some circumstances, a root canal procedure may be able to save it. when your dentist determines

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How Do Dentists Figure Out blue-grey teeth?

When you visit a dentist with greyish teeth, they will examine your mouth to find out what’s going on. They might take some pictures of your teeth, called X-rays, to get a closer look. If needed, they may even do a special test to check if your tooth is dying.

Treatments for grey teeth

Luckily, there are ways to make teeth look better! Here are some treatments that dentists might suggest:

  • Special kinds of toothpaste: Dentists may recommend using whitening toothpaste to help lighten the grey color. These kinds of toothpaste have special ingredients that can make your teeth look brighter.
  • Professional Treatments: Dentists can offer different treatments to make grey teeth whiter. They might give you a mouthguard with a bleaching solution to use at home. Or you might go to the dentist’s office, where they use stronger treatments and even laser lights to brighten your teeth.
  • Dental Veneers: In some cases, if the grey color doesn’t go away, dentists can place thin covers called dental veneers on the front of your teeth. These veneers are like little masks that make your teeth look white and healthy.

Remember to Take Care of Your Teeth

To keep your teeth healthy and prevent them from turning grey, make sure to brush them twice a day with fluoride toothpaste. Don’t forget to floss daily and visit your dentist regularly. By taking good care of your teeth, you can keep them strong and shiny.


A tooth can turn grey or appear discolored due to various reasons, including:

  • Trauma: A sudden impact or injury to a tooth can damage the blood vessels inside it, leading to internal bleeding. Over time, the blood products can break down and cause the tooth to turn grey or dark.
  • Dental infections: Severe tooth decay or infection can affect the pulp, which contains nerves and blood vessels. If the infection spreads to the pulp, it can lead to tooth discoloration.
  • Root canal treatment: In some cases, a tooth that has undergone root canal treatment may turn grey or dark. This can happen due to changes in the blood supply or the breakdown of internal tooth structures.
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Whether grey teeth can be saved depends on the underlying cause and the extent of damage. It is important to consult a dentist who can assess the situation and recommend appropriate treatment options. In some cases, the tooth may be salvageable through treatments such as internal bleaching, crown placement, or other restorative procedures. However, if the tooth is extensively damaged or the discoloration is due to severe internal problems, extraction may be necessary.

Grey teeth are commonly referred to as “grey teeth” or “gray teeth.” The term generally describes the visible discoloration of a tooth that has turned grey or dark.

Gray tooth syndrome is a term used to describe a condition where a tooth or multiple teeth appear grey due to a combination of factors. It typically occurs when there is a history of antibiotic use, specifically tetracycline, during tooth development. Tetracycline can affect the color and structure of teeth, leading to grey discoloration. Gray tooth syndrome is considered challenging to treat, and the treatment options may vary depending on the severity of the discoloration and the patient’s specific circumstances. Consulting a dentist is crucial for an accurate diagnosis and appropriate treatment recommendations.


Grey teeth can happen for different reasons, such as medicine, accidents, or tooth decay. But the good news is that dentists have ways to make such teeth look better and help you have a bright smile. Remember to brush, floss, and see your dentist regularly to keep your teeth healthy and avoid any grey surprise.

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