678H
Fig. 12.10 (a) Severe discolouration of
the upper right primary central incisor.
(b) Radiographic evidence of periapical
pathology. Extraction was necessary.12.6.2 Pulpal obliteration
Obliteration of the pulp chamber and canal is a common reaction to trauma (679HFig.
12.11). Clinically, the tooth becomes yellow/opaque. Normal exfoliation is usual but
occasionally periapical inflammation may intervene and therefore annual radiography
is advisable.