Cosmetic Dentistry15 September 20243 min read

Internal Bleaching for a Dead Tooth

A single darkened tooth after a root canal can be whitened from the inside. Here's how.

Dr. Ahmed Al-Rashid

Medical Director

Why dead teeth darken

After a root canal, blood pigments can enter the dentin, causing the tooth to turn grey or brown over months or years.

The procedure (walking bleach)

  • Small access cavity reopened in the back of the tooth
  • Bleaching paste placed inside the tooth
  • Temporary filling seals it
  • Paste refreshed every 3–7 days
  • Continues until colour matches neighbours

Expected results

  • 1–3 sessions usually sufficient
  • Lifespan of result: 2–7 years
  • Repeatable if darkening returns

Cost in Dubai

  • AED 800–1,800 for a single tooth internal bleach
  • Dramatically cheaper than a crown or veneer

When internal bleaching doesn't work

  • Severe discoloration (consider veneer or crown)
  • Root-end infection still active
  • Large existing restoration interfering

Aftercare

  • Final restoration (composite or crown) after colour is stable
  • Regular whitening maintenance possible if desired

Practical decision guide

Cosmetic dentistry is strongest when the smile plan starts with healthy teeth and gums, not with a material choice. Before committing to a visible change, confirm the diagnosis, preview the result on your own face, and understand what tooth structure will or will not be removed.

Check this first

  • Gum health, cavities, bite forces, grinding history, and old restorations.
  • Whether whitening, bonding, alignment, veneers, or crowns is the least-invasive option that meets the goal.
  • How the proposed shade and tooth shape will look in daylight, photos, and normal conversation.

When to book sooner

  • The tooth is chipped, dark after trauma, sensitive, mobile, or changing colour quickly.
  • You are being offered irreversible treatment without x-rays, gum screening, photos, or a trial smile.
  • You grind at night and no nightguard or bite plan is included.

Topic-specific notes

  • For cosmetic work, the most protective sequence is health check, photos, smile preview, trial or mock-up where appropriate, then final treatment. Irreversible tooth preparation should not be the first step in the conversation.
  • Whitening works on natural tooth structure, not porcelain, composite, crowns, veneers, or fillings. Match any existing restorations after whitening, not before.

Questions to ask at the appointment

  • Can I see a digital preview or trial smile before irreversible preparation?
  • How much enamel will be removed, and is there a lower-prep alternative?
  • What happens if the restoration chips, stains, or needs replacement later?

Dubai patient note

For Dubai cosmetic treatment, ask for a written plan that separates consultation, scans, mock-up, treatment, nightguard, warranty terms, and maintenance visits. If a clinician or facility is unfamiliar, verify licensing through DHA before starting.

References

  • American Association of Endodontists

Medical disclaimer. This article is informational and does not replace professional clinical advice. For a plan specific to your situation, book a consultation with a Paradise Dental specialist.

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