Internal Bleaching

Restore Your Tooth’s Natural Brightness With Internal Bleaching

If one of your teeth has turned gray, brown, or yellow after an injury or root canal, you are not alone, and you do not have to live with it. Internal bleaching is a specialized cosmetic treatment that whitens a tooth from the inside out, targeting the discoloration that ordinary whitening products simply cannot reach. At Roberts Wellness Dental, your trusted dentist in Centralia, WA, we offer this effective and minimally invasive procedure to help patients reclaim a confident, natural-looking smile.

Understanding the Cause of Internal Tooth Discoloration

When a tooth experiences trauma or undergoes a root canal, the pulp tissue inside can break down and release pigments that stain the tooth from within. Over time, this creates a noticeably darker appearance that stands out against the surrounding teeth. Because the discoloration originates inside the tooth structure, surface-level treatments like whitening strips or professional bleaching trays cannot correct it.

Internal bleaching solves this problem by placing a safe whitening agent directly inside the tooth, where the staining actually begins.

Who Is a Good Candidate?

This treatment works best for patients who have:

A tooth that has darkened following trauma or injury

Discoloration that developed after root canal therapy

A non-vital (pulpless) tooth that is otherwise structurally sound

Good overall oral health with no active decay or gum disease

If you are unsure whether internal bleaching is right for you, our team can evaluate the tooth and walk you through your options.

What to Expect During Internal Bleaching Treatment

Before Your Appointment

We begin with a thorough exam and X-rays to confirm the tooth is healthy enough for the procedure. Because internal bleaching is only performed on teeth that have already had a root canal, we verify that the root canal filling is intact and properly sealed before moving forward.

During the Procedure

The process itself is straightforward and typically completed in one to two appointments. Here is what happens:

1. We access the inside of the tooth through a small opening, similar to what was done during the root canal.
2. A protective barrier is placed over the root filling to keep the whitening agent away from the root structure.
3. A carbamide peroxide or sodium perborate bleaching agent is placed inside the tooth.
4. The opening is sealed with a temporary filling while the bleaching agent works over the course of several days.
5. At your follow-up visit, we remove the agent, assess the color, and may repeat the process if additional lightening is needed. Once you reach the desired shade, the tooth is permanently sealed and restored.

After Treatment

Most patients see a significant improvement within one to two sessions. The results can last for many years with proper care. We may recommend a follow-up to monitor the color over time.

5 Reasons Patients Choose Internal Bleaching

• Targeted results. It addresses discoloration that no external whitening treatment can fix.
• Minimally invasive. No drilling into healthy tooth structure is required.
• Preserves your natural tooth. It offers an alternative to masking the tooth with a veneer or crown when the structure is still sound.
• Predictable outcomes. Most patients achieve noticeable, lasting whitening in just one or two visits.
• Restores confidence. A matched, uniform smile makes a real difference in how patients feel day to day.

Comparing Treatment Options for a Discolored Tooth

Frequently Asked Questions About Internal Bleaching

Is internal bleaching painful?

No. Because the tooth has already had a root canal and the nerve has been removed, patients do not feel the whitening agent working. The procedure itself is comfortable, and there is minimal to no sensitivity during or after treatment.

How long do the results last?

Results vary by patient, but many people enjoy their brighter tooth for five years or more. Periodic touch-ups are possible if the tooth gradually darkens again over time.

Will my tooth look like a natural match to the rest of my smile?

Our goal is always a seamless, natural result. We work carefully to match the shade of the treated tooth to your surrounding teeth, and we monitor your progress throughout the process to make sure you are happy with the outcome.

Ready to Brighten That Tooth? Let’s Talk.

A single discolored tooth can draw attention away from an otherwise healthy smile, but it does not have to be permanent. As your dentist in Centralia, WA, Roberts Wellness Dental is here to help you explore whether internal bleaching is the right solution. Call us at (360) 736-8380 to schedule your consultation and take the first step toward a smile that looks as good as it feels.