Your Hometown Dentist

Help! My Teeth are Yellow

Yellow teeth are one of the most frustrating cosmetic problems. Why? Because it sneaks up on you. One morning your smile twinkles, and then over time, you notice that it’s lost its shine. 

What happened to your beautiful, brilliant smile and how do you get rid of the yellow stains? Our team of experienced dentists at Simple Smiles in Johnson City, TN is here to answer all of your questions and give you the best solutions to your smile problems. 

We know how much yellow, discolored teeth can affect your confidence. That’s why we offer comprehensive whitening options that take your teeth from dingy to dazzling safely and quickly. 

A close-up look at your teeth

For being so small, your teeth are surprisingly complex structures. A network of nerves, blood vessels, and connective tissue live below the two outermost layers of your teeth — the dentin and enamel. 

Dentin is a hard, yellow-colored tissue that houses a series of microscopic tubes that have a direct path to your nerves. Your enamel is the rock-hard outer layer of your teeth. This is what makes your smile white and where years of stains accumulate.

Even if you have a stellar oral hygiene routine, stains can still appear on your teeth. There are three main ways your teeth become yellow: extrinsic, intrinsic, and age-related changes.


Extrinsic changes occur when the enamel comes into contact with harmful, heavily-pigmented substances or goes through trauma. The most common causes of extrinsic stains include:

There are also some medications and dental materials that can dim your smile’s brightness. 


Your yellow teeth can also be a side effect of an underlying health condition. Intrinsic aggressors that happen inside of your body or teeth like diseases, infections, genetics, and even harsh treatments like radiation and chemotherapy can discolor your teeth.

These health issues and treatments affect your enamel and the dentin below, leaving you with a yellowish grin.  


Other times, the yellow tinge on your teeth is completely out of your control and is simply the result of increased age. As you age, the outer layer of enamel on your teeth slowly deteriorates, revealing the natural yellow hue of the dentin beneath the shiny, white enamel.  

The science behind teeth whitening

Your journey to whiter teeth begins with an evaluation. Your dentist assesses your teeth for any damage, infection, or other issues that will hinder your whitening results. You may need a routine cleaning or other dental services like root canals before getting started. 

Once you’ve been cleared for whitening treatments, we discuss your options with you. We offer two of the most advanced whitening treatments: Zoom!® and BleachBright®. We also provide you with the option of in-office treatments and at-home regimens, which means you can customize your whitening experience to fit your lifestyle. 

Here’s how they work. 


During your in-office Zoom! treatment, your dentist applies a coat of whitening gel on your teeth. Then, they direct a specialized light onto your teeth to activate the gel. We repeat this process three times at 15-minute intervals. You’ll leave our office with a whiter smile in less than an hour. 

If you opt for at-home treatments, your dentist sends you home with customized trays and the complete Zoom! whitening kit. You’ll have the power of in-office treatments in the comfort of your own home. 


The BleachBright line of teeth whitening products, from their unique toothpaste to their whitening pen, guarantees that your smile will be brighter in just a few treatments. Your dentist explains the BleachBright system to you and recommends the most effective products so you know that you’ll get the best results.

When you’re ready to turn your yellow frown upside down and show off your pearly whites, contact us at 423-241-6070 to schedule an appointment. 

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