
External whitening treatments work on the tooth's outer surface. If discoloration comes from inside the tooth, whether from trauma, injury, or a previous root canal, no amount of whitening toothpaste or bleaching trays will make a difference.
Internal bleaching is a procedure we perform at Advanced Root Canal Specialists that addresses discoloration from the inside out. For the right candidate, this process can restore a darkened tooth without the need for a crown or veneer.
Internal discoloration usually develops after trauma or root canal treatment. When a tooth is injured, pigments from broken-down blood cells can penetrate the tooth structure, leaving a gray, brown, or sometimes pinkish stain. Residual materials from a previous root canal can also cause darkening over time. In some cases, the tooth simply ages from the inside as pulp tissue breaks down.
Internal bleaching is a conservative procedure in which we work through the tooth's existing access point to address discoloration directly.
Here's what the process looks like:
The number of visits needed varies from patient to patient. We'll give you a realistic estimate based on your specific situation.

For many, internal bleaching can significantly improve the tooth’s color. However, results vary depending on the cause and extent of the discoloration.
If discoloration is too extensive, a crown or veneer may be the better option. We'll set honest expectations before treatment begins so you know what's realistic for your tooth.
Please call Advanced Root Canal Specialists at (410) 772-9600 to schedule a consultation. We’re open five days a week with early morning and evening hours. We also keep same-day appointments available for dental emergencies.
Advanced Root Canal Specialists welcomes patients from all over Maryland, including Columbia, Baltimore, Rockville, Laurel, and beyond.