Tooth Discoloration North Liberty, IA

Tooth discoloration is one of the common dental concerns we treat. Stains on teeth can affect people of all ages and can be a source of embarrassment. For some, it can impact their self-esteem and confidence levels. Dr. S. Jeremy Tu and his team of dentists can treat tooth discoloration in North Liberty, IA, using several treatment options depending on the cause of the problem.

tooth discoloration in North Liberty, IA

 

Causes of Tooth Discoloration

Tooth discoloration can occur due to many factors. Some common causes include:

  • Certain foods and drinks with intense color pigments such as red wine, coffee, berries, curry, and tea. Constantly consuming them can cause teeth to stain over time.
  • Smoking and chewing tobacco can lead to stained or yellow teeth from the constant exposure to nicotine and tar present in these products.
  • If you have poor oral hygiene habits such as inadequate brushing and flossing, this will allow plaque and tartar to buildup on the teeth leading to surface stains.
  • Injuries or trauma to the teeth can cause internal injuries and result in tooth discoloration.
  • An excessive amount of fluoride during tooth development, can lead to internal stains known as fluorosis.
  • Certain medications and antibiotics during tooth development especially in childhood can also cause internal stains.

Why are my teeth yellow near the gum line?

Gingival recession can lead to yellow teeth near the gum line. This is when gums recede and the tooth roots become exposed. The dentin layer of the tooth is yellow and is now exposed. When the root surface is visible, your teeth appear yellow near the gums. Gingival recession happens when you brush too hard, suffer from gum disease, have misaligned teeth, or from natural aging.

Types of Teeth Stains

Teeth stains can be classified into three main categories:

Extrinsic Stains

These types of stains affect the outer layer of the tooth, the enamel layer. Extrinsic stains are caused by external factors such as tobacco use, foods, drinks, and poor oral hygiene practices.

Intrinsic Stains

These types of stains occur inside the tooth’s structure. They are caused by factors during tooth development, trauma, certain medications (e.g., tetracycline antibiotics), or excessive fluoride.

Age-Related Stains

The aging process will cause our enamel to naturally wear down. This reveals the underlying dentin, which is yellow in color. This is a gradual process that will make your teeth appear yellow and more discolored over time.

Treating Tooth Discoloration in North Liberty, IA

Dr. Tu offers several treatment options for tooth discoloration in North Liberty, IA. Here is a list of the options that are available to address tooth discoloration and stains:

  • Professional Teeth Whitening: We offer professional at-home teeth whitening kits. It includes bleaching agents and a custom mouthpiece to lighten the color of your teeth from the comfort of your home. To learn more how our whitening treatment works, see Teeth Whitening.
  • Porcelain Veneers: Thin shells made of porcelain can be placed on the front surface of the teeth to cover stains or discoloration and provide a brighter, more uniform appearance. To learn more about the dental veneer process, see Porcelain Veneers.
  • Dental Bonding: Dr. Tu will use a tooth-colored composite resin material to cover up stains. He will apply it to the affected tooth or teeth to cover stains and improve their appearance. To learn more about the dental bonding treatment, see Tooth Bonding.
  • Dental Crowns: If discoloration is severe or intrinsic, we can use a dental crown to cover up the stains as well as fix any damage. This involves covering the entire tooth with a cap that matches the surrounding teeth. To learn about the dental crown process, see Dental Crown.

There Are Many Ways to Prevent Tooth Discoloration

Tooth discoloration may be inevitable as we age; however, there are many ways to prevent it. Everyone should follow these preventive measures to help minimize it:

  • Maintain proper oral hygiene by brushing your teeth at least twice a day and flossing once a day.
  • Limit the consumption of staining substances such as coffee, tea, red wine, and highly pigmented foods.
  • Avoid all tobacco products.
  • Rinse your mouth with water after consuming staining foods or beverages to minimize their impact.
  • Visit your dentist regularly for professional cleanings and dental examinations.

Tooth Discoloration FAQs

Tooth discoloration can come from a variety of different things. Read on to learn more.

What is the difference between intrinsic and extrinsic stains?

Extrinsic stains are surface-level discolorations that affect the enamel and are often caused by food, drinks, or tobacco. These stains can usually be removed with professional cleanings or whitening treatments. Intrinsic stains occur inside the tooth, often due to trauma, medications, or developmental issues. They are harder to treat and may require bleaching or cosmetic procedures like veneers.

How does aging affect tooth color?

As you age, the enamel on your teeth wears down, revealing more yellowish dentin underneath. Years of exposure to staining foods and drinks also darkens the teeth. In addition, your teeth may become more brittle and pick up stains more easily. This makes discoloration more common in older adults.

Can trauma to a tooth cause discoloration?

Yes, an injured tooth may turn gray, brown, or even black. This happens when the pulp inside the tooth becomes damaged or dies, allowing internal staining. Sometimes the discoloration appears months or even years after the injury. Treatment may involve internal bleaching, a root canal, and a crown or veneer.

Is tooth discoloration always a cosmetic issue?

Not always. While many cases are purely cosmetic, discoloration can sometimes signal underlying problems like tooth decay, infection, or damage to the pulp. If a tooth suddenly changes color or darkens, seeing a dentist is important. Early treatment can prevent more serious issues.

How does smoking affect tooth color?

Tobacco products contain tar and nicotine, which deeply stain teeth over time. These substances can cause yellow or brown discoloration, which is often resistant to over-the-counter whitening products. Smokers are more likely to have darker, duller teeth and more plaque buildup. Quitting smoking and professional whitening treatments can help improve your smile.

What are my options if whitening doesn’t work?

If whitening doesn’t improve your tooth color, cosmetic options like veneers or dental bonding may be recommended. These treatments cover the front surface of the teeth and can effectively mask discoloration. Crowns may be used for more severely damaged or darkened teeth. Your dentist can help you choose the best option based on the cause and severity of the discoloration.


Treating your discolored teeth can brighten your smile and make you feel better about yourself. Dr. Tu offers many treatment options for tooth discoloration in North Liberty, IA for patients who suffer from intrinsic or extrinsic tooth stains. Call our office today at (319) 284-4361 to book a consult, or you can request an appointment online by filling out the form.