ABSTRACT
TECHNIQUE This has also been called 'internal/ external bleaching' (Settembrini et al 1997) and the 'patient-administered intracoronal bleaching technique' or 'modified walking bleach technique' (Liebenberg 1997). The technique combines the intracoronal bleaching technique with the home bleaching technique. It is used to lighten non-vital teeth in a simple manner. After barrier replacement the access cavity is left open so that the bleaching material, which is normally 10% carbamide peroxide, can be placed into the pulp chamber while the bleaching tray is applied to the tooth to retain the material on the tooth. Bleaching can thus take place internally and externally at the same time (see Figure 9.1). This technique is a modification of the intracoronal bleaching technique (see Chapter 8). At present there are few clinical studies (Carillo et al 1998) and anecdotal case reports published on this combined technique. However, its simplicity and effectiveness warrant description and discussion.
