Non Vital Bleaching
Non Vital/Internal bleaching procedures are performed on teeth that have undergone endodontic treatment (a.k.a. root canal) and are discoloured . Unlike external bleaching, which brightens teeth from the outside in, internal bleaching brightens teeth from the inside out. Bleaching the tooth internally involves placing a peroxide gel into the pulp chamber so they can work directly inside the tooth on the dentin layer. In this variation of whitening the whitening agent is sealed within the tooth over a period of some days and replaced as needed, the so-called “walking bleach” technique. A seal should be placed over the root filling material to minimise microleakage. There is a small risk of external resorption.
An alternative to the walking bleach procedure is the inside-out bleach where the bleaching cavity is left open and the patient issued with a custom-formed tray to place and retain the agent, typically a carbamide peroxide gel inside the cavity. On review once sufficient shade change has occurred the access cavity can be sealed, typically with a dental composite.
Cosmetic Dentistry we provide At Nuala Cagney Dental & Facial Aesthetics Clinic