Internal Tooth Bleaching: Procedure, Cost, ADA Code, Materials & Sodium Perborate

Content:

• What is Internal Tooth Bleaching?
• Internal Tooth Bleaching Procedure
• Internal Tooth Bleaching Cost
• Internal Tooth Bleaching ADA Code
• Internal Tooth Bleaching Materials
• Internal Tooth Bleaching Sodium Perborate

What is Internal Tooth Bleaching?

Internal tooth bleaching is a dental procedure used to lighten discolored teeth from the inside out. Unlike external bleaching that targets the surface enamel, this method focuses on intrinsic stains within the dentin, which often occur after trauma, root canal treatment, or pulp necrosis. It is commonly recommended when a single tooth becomes darker than the surrounding teeth, making it an aesthetic concern for patients.

The treatment involves placing a bleaching agent inside the hollow chamber of a treated tooth. Over time, the agent breaks down the stains and restores a more natural tooth shade. Internal bleaching is a conservative option compared to veneers or crowns since it does not require significant removal of healthy tooth structure. Dentists often use it in combination with other cosmetic procedures to achieve a uniform smile appearance.

Internal Tooth Bleaching Procedure

The procedure starts with an assessment to confirm that the tooth is non-vital and suitable for bleaching. After ensuring root canal therapy has been properly completed, the dentist creates an access opening to place the bleaching agent inside the pulp chamber. A protective barrier is applied over the root filling material to avoid irritation or leakage.

Common bleaching agents include sodium perborate mixed with water or hydrogen peroxide. The agent is sealed inside the tooth temporarily, usually for several days. The process may need multiple sessions depending on the severity of discoloration. Once the desired shade is achieved, the dentist removes the bleaching material and seals the tooth permanently with a filling. Post-procedure care includes regular checkups to monitor tooth health and color stability.

Internal Tooth Bleaching Cost

The cost of internal tooth bleaching varies depending on factors such as the dentist’s expertise, clinic location, and number of required sessions. On average, it ranges between $250 to $700 per tooth. In some regions, the price may increase if additional treatments like crowns or veneers are needed afterward.

Insurance coverage for cosmetic procedures like internal bleaching is usually limited. However, if discoloration is linked to dental trauma, partial coverage may be available. Patients are advised to consult their provider for detailed estimates. While the cost might seem higher than over-the-counter whitening kits, internal bleaching specifically targets deep-rooted stains that cannot be treated with surface-level whitening methods, making it a valuable long-term investment.

Internal Tooth Bleaching ADA Code

The American Dental Association (ADA) assigns procedural codes to standardize dental treatments. For internal bleaching, the relevant CDT code is D9974 (Internal Bleaching – Per Tooth). This code helps dental offices record the treatment accurately for billing and insurance purposes.

Using the ADA code ensures clarity between patients, dental professionals, and insurance companies. It also allows better communication in treatment planning and cost estimates. Since internal bleaching is categorized as a cosmetic procedure, patients should be aware that it may not be fully covered by insurance. Having the code on record, however, helps in submitting claims when applicable.

Internal Tooth Bleaching Materials

The primary materials used in internal tooth bleaching include bleaching agents like sodium perborate, hydrogen peroxide, and carbamide peroxide. A protective base material such as glass ionomer or composite resin is placed to seal the root canal filling and prevent bleaching chemicals from leaking into surrounding tissues.

Other essential materials include dental cotton pellets, temporary sealing agents, and bonding resins. Dentists may also use specialized syringes or applicators to place the bleaching material precisely. The choice of materials depends on the severity of discoloration and the dentist’s preference. High-quality materials ensure safe, effective, and predictable results while minimizing the risk of external cervical resorption or damage to enamel.

Internal Tooth Bleaching Sodium Perborate

Sodium perborate is one of the most commonly used agents for internal tooth bleaching. When mixed with water or hydrogen peroxide, it releases oxygen, which helps break down the pigmented molecules causing tooth discoloration. It is considered safer and more controlled than high-concentration hydrogen peroxide alone.

This material is preferred in cases where gradual whitening is desired to minimize the risk of tissue irritation or root resorption. Dentists usually seal sodium perborate inside the tooth for a few days, then evaluate the results before reapplying. Its effectiveness, safety profile, and ease of use make it a reliable choice for internal bleaching treatments worldwide.