Bite Marks of Child Abuse
Information has been excerpted from VisualDx clinical decision support system as a public health service. Additional information, including symptoms, diagnostic pearls, differential diagnosis, best tests, and management pearls, is available in VisualDx.
Bite marks typically appear as a pair of semicircular ecchymotic patches with either of the following patterns: positive pressure from the closing of teeth with disruption of small vessels, or negative pressure caused by suction creating surrounding erythema and edema with occasional petechiae.
Adult bite marks can be differentiated from those of a child by a maxillary intercanine distance (the linear distance between the central points of the cuspid tips) of more than 3 cm and the tooth pattern.
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