Why are My Teeth Turning Black?

You may have heard of teeth turning yellow, but at times teeth can also turn black. If you notice your teeth turning black, it can be scary. However, you can consult your dentist who can recommend an appropriate treatment depending on why the teeth have turned black.

Reasons for Teeth Turning Black

There are two types of causes for black teeth: extrinsic and intrinsic. Extrinsic causes of teeth turning black include external influences that affect the teeth. Enamel damage, tooth discolouration, or tartar build-up are all possibilities. It could also be caused by certain foods, beverages, medications, tobacco usage, toothpaste, rinses, and silver fillings. Intrinsic causes of teeth turning black, on the other hand, are caused by internal dental issues. Cavities, decay, infected pulp, and a tooth that has died are such examples.

Here are some of the reasons for teeth turning black that you may be experiencing:


We all know that tobacco products and smoking is injurious to health. In addition to being one of the reasons for teeth turning black, it can also cause other dental health problems.

If you smoke a lot, it is highly recommended to start your journey toward quitting this harmful habit.


Trauma to the teeth can end up damaging the enamel. The secondary dentin, which is the layer beneath the enamel, can start to build up following the damage from the trauma.

This build-up can become dark in colour as well as cause the tooth pulp, which is the living tissue of the tooth, to shrink.

Silver Fillings

Dental fillings are a popular cosmetic treatment. Silver is one of the materials used for fillings. These are also known as amalgam fillings. One drawback of silver fillings is that they can become dark as they become older.

Dental Decay

Dental decay is a common oral health problem. Since the decay can deteriorate the tooth enamel, the damage can appear as a darkening of the tooth.

Medical Conditions

At times, why teeth turn black may not be an issue directly related to oral problems. The black colour of the teeth may be occurring due to medical conditions such as gastric reflux, eating disorders, liver disease, and some metabolic diseases.

Prescription Medication

At times, teeth can turn black as a side effect of certain medications prescribed.

Poor Dental Hygiene

Proper oral hygiene is the basic step to maintaining dental health. Not maintaining dental hygiene can cause discolouration of the teeth as well as lead to more complicated oral problems.

Treatment for Black Stains on Teeth

If you have recently discovered black stains on your teeth or your teeth are darkening in colour, you should visit the dentist. Only a dentist can determine the real cause for the teeth turning black. Depending on the cause identified, the dentist will recommend the treatment. For example, if you do not have any infection or signs of dental decay, and there is no other problem identifiable causing the dark colour, then your dentist will likely use cosmetic treatments for concealing the discolouration. A dentist will not extract a healthy tooth.

To book an appointment with a cosmetic dentist in Dallas or learn more about black stains on teeth, contact Randall Dentistry.

Request an Appointment

11 + 11 =

Dental Hours

Mon – Thurs
08am – 04pm

08am – 03pm

Sat – Sun

Drop us a Message

11 + 11 =