Do Teeth Naturally Become Discolored With Age?

February 26, 2025

As we age, it’s common for many aspects of our appearance to change, and our teeth are no exception. One question many people have is whether teeth naturally become discolored with age.

The answer is multifaceted, involving a mix of biological changes, dietary habits, lifestyle choices, and overall oral care. Here, we explore the various factors that contribute to tooth discoloration as we grow older.

The Natural Aging Process

Teeth are composed of several layers, including enamel, dentin, and pulp. Enamel, the outermost layer, is a hard protective cover that can wear down over time.

As we age, the enamel becomes thinner, exposing the underlying dentin, which is naturally more yellow than tooth enamel [1]. This gradual increase in dentin visibility can give the impression that teeth have darkened or become discolored.

In addition to enamel wear, other age-related changes affect the color of our teeth. For example, the pulp can shrink as we age, leading to changes in tooth translucency and making them appear darker. This process is called pulp recession.

Dietary Factors

Diet plays a significant role in tooth discoloration. Over time, habitual consumption of certain foods and beverages can stain teeth. Some common culprits include:

Coffee and tea
Red wine
Dark sodas
Berries and certain foods with strong pigments

Frequent snacking on these items can lead to the accumulation of stains, which become more pronounced as the enamel wears away. In addition, diets that include a lot of acidic foods and drinks—think citrus fruits, sodas, and alcohol—can slowly erode enamel, making teeth more susceptible to discoloration [2].

Lifestyle Choices

Lifestyle factors, such as smoking and tobacco use, can dramatically impact tooth color. The tar and nicotine in tobacco products can leave unsightly stains, often resulting in a yellow or brown tint to the teeth [3]. As we age, these stains accumulate, leading to more pronounced discoloration.

Additionally, poor oral hygiene practices can accelerate the discoloration process. Neglecting regular brushing and flossing, combined with infrequent dental check-ups, can allow plaque and tartar buildup, contributing to a yellowing appearance.

Medical Factors

Certain medical conditions and medications can also influence tooth color as we age. For instance, some antibiotics, such as tetracycline, can cause staining if taken during pregnancy or early childhood.

Health conditions like diabetes or acid reflux can affect the mouth’s pH balance, potentially leading to enamel erosion and discoloration over time [4].

Additionally, the natural aging process can come with a higher likelihood of certain oral health issues, including cavities and gum disease, both of which can affect the appearance of teeth.

Preventive Measures

While some degree of discoloration can be a natural part of aging, there are steps you can take to help keep your teeth looking as bright as possible for as long as possible:

Maintain a consistent oral hygiene routine, including brushing twice a day and flossing daily
Visit your dentist regularly for check-ups and cleanings to remove surface stains

Limit consumption of stain-causing foods and drinks

Consider using a straw for beverages that are likely to stain

Avoid tobacco products altogether

Keep Your Teeth Bright With Professional Dental Care

If you are concerned about tooth discoloration and considering ways to improve your smile, don’t hesitate to contact your dentist. They can help you explore personalized options for teeth whitening and other treatments to enhance the brightness of your smile and correct stubborn discoloration that can happen with age.