Restore the Natural Brightness of Your Teeth

At Advanced Endodontics Korinthos, we specialize in internal tooth bleaching, a precise endodontic treatment for teeth that have darkened after root canal therapy, trauma, or pulp necrosis. Unlike surface whitening, internal bleaching targets the internal structure of the tooth, removing the cause of discoloration and restoring your natural smile safely.

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What is Internal Tooth Bleaching?

Internal bleaching is an esthetic endodontic procedure designed to remove internal stains from the pulp chamber and root of a tooth. It is most commonly applied to front teeth that have discolored due to:
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• Root canal treatment (endodontic therapy)
• Dental trauma causing pulp necrosis
• Internal bleeding within the tooth
• Residual medication from previous root canal treatments

Why Do Teeth Darken After Root Canal Therapy?

After endodontic treatment, small amounts of organic material or blood residues may remain inside the pulp. Over time, these oxidize, causing noticeable discoloration. This is especially significant in front teeth, affecting the appearance of your smile. Internal bleaching provides a conservative, painless, and effective solution.

When is Internal Bleaching Needed?

The procedure is indicated when:

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• A tooth has undergone successful root canal therapy but has darkened.

• A tooth has discolored following trauma.

• A patient wants a minimally invasive cosmetic enhancement.

Internal Bleaching Procedure(Step by Step)

Step 1: Clinical Examination & Diagnosis:

Review of tooth history, X-rays, and root status. Retreatment of the root canal is checked if necessary.

Step 2: Tooth Preparation

Removal of old fillings in the pulp chamber and verification of root canal seal.

Step 3: Application of Bleaching Material

Special whitening agents (commonly peroxide or carbamide-based) are placed inside the pulp chamber.

Step 4: Temporary Seal

The tooth is temporarily sealed to allow the bleaching agent to work over several days.

Step 5: Re-evaluation & Final Restoration:

If needed, the procedure is repeated 1–2 times until the desired shade is achieved. The tooth is then permanently restored with a cosmetic filling or crown.

Benefits of Internal Tooth Bleaching

• Aesthetic Results: Restores the tooth’s natural color
• Conservative: No need for veneers or crowns unless necessary
• Long-lasting: Results remain for years with proper care
• Painless: Usually requires little or no anesthesia

Success Rates

Clinical studies show success rates of 80–90% after the first session, with most cases achieving the desired shade quickly.

Patient Preparation

• The tooth must have a completed and successful root canal.
• X-ray examination is performed before bleaching.
• No special preparation is needed other than maintaining oral hygiene