Fig. 10.2 (a) Radiograph of upper right central incisor with a well-condensed root
filling. (b) Standard bur in a contra-angled head may not reach the dentogingival
junction. (c) Correct depth achieved using a standard bur in a miniature head.
528H
Fig. 10.3 (a) and (b) Intensely darkened, non-vital, upper left central incisor treated
by four changes of bleach.
10.2.3 The inside/outside bleaching technique
Recently, an alternative approach to the management of the discoloured