Internal bleaching (also called non-vital bleaching) is a professional dental procedure used to whiten a tooth that has darkened after a root canal. Unlike over-the-counter whitening products, this treatment is done from the inside of the tooth and performed only by a dentist or endodontist.
This approach is especially effective for teeth discolored by dental trauma, previous root canal therapy, aging, or certain medications.
Tooth Discoloration:
Discoloration of a single tooth may result from caries or dental trauma, starting internally and moving outward. Generalized discoloration can occur due to aging, medications, or habits such as smoking.
Treatment options include internal bleaching, bonding, or crowns. The appropriate method depends on factors such as:
The degree and type of staining
The remaining tooth structure and whether changes to the tooth’s shape are needed
Your dentist will recommend the best approach to achieve safe and effective results.
Professional teeth whitening and internal bleaching both aim to make teeth appear whiter, but they differ in approach. Professional whitening, or external bleaching, includes in-office laser treatments and take-home kits. Internal bleaching is more invasive and reserved for teeth that have undergone root canal treatment.
A safe oxidizing agent (bleaching solution) is placed inside the tooth to lighten discoloration. This can be done in two ways:
In some cases, multiple treatments are needed depending on the severity of the discoloration.
Depending on your case, treatment may include:
Your dentist will recommend the best option to achieve safe, long-lasting, and natural results.