A crush wound may have irregular margins like a laceration; however, the wound will be deeper and trauma to muscle and bone may be apparent.
Large cuts may require sutures and should be done by a maxillofacial surgeon for a good cosmetic result, particularly when the laceration is on the edge of the lip line (vermilion).
Here is a very detailed tutorial that results in a very real, very graphic laceration.
These methods of treatment require to be modified for wounds in special situations and for those in which there is much contusion and laceration.
He also received 26 sutures to his scalp laceration.