Figure 3-1. Types of mandibular factures.
b. Compound Fracture. A compound fracture is a break in the bone with an
external wound extending to the bone. Communication from the bone to the skin or
c. Comminuted Fracture. A comminuted fracture is one in which the bone is
splintered into three or more fragments or is crushed.
A compound-comminuted fracture is one with both a splintering of the bone
and a break in the bone with an opening to the covering surface.
d. Depressed Fracture. A depressed fracture is a break in which the fractured
part is driven below the normal level of the bone, as in a skull fracture.
e. Impacted Fracture. An impacted fracture is a b
ak in which the hard cortical bone of one fragment is driven into the softer cancellous
bone of another fragment.
f. Pathologic (Spontaneous) Fracture. A pathologic fracture is a break
without external violence at an area of the bone that has been weakened by a local