Name the injury seen in the colour plate:: (A) Crown fracture, (B) Enamel infraction, (C) Crown fracture without pulp exposure, (D) None
Answer is B. A crack line or chip of the enamel is the key clinical feature of enamel infarction.
ENAMEL INFARCTION
CLINICAL FINDINGS: Visual examination by DYES (Methylene Blue). Tooth is not tender on percussion. If tender on percussion, check for luxation injury/root fracture.
TREATMENT: Etching and sealing with resin to prevent discoloration of infarction line.