Internal Bleaching

Internal bleaching is an intracoronal whitening procedure performed to address discoloration of a non-vital tooth, most commonly following trauma, pulpal necrosis, or endodontic therapy.

Procedure Overview

1. An access cavity is prepared, often through the existing restoration, to expose the pulp chamber.
2. A protective barrier is placed over the root canal filling material to prevent leakage of the bleaching agent into the canal space.
3. A chemical bleaching agent, typically hydrogen peroxide or carbamide peroxide, is placed within the pulp chamber.
4. The access is sealed with a temporary restoration, and the bleaching agent is left in place for a prescribed period.
5. The process may be repeated until the desired shade is achieved.
6. The bleaching material is removed, and the tooth is permanently restored.

Purpose
Unlike external whitening, internal bleaching targets intrinsic discoloration by acting directly within the tooth structure, offering a conservative and aesthetic solution for restoring natural tooth color.