I'm no expert, but it sounds like the dog's cut has gotten a possibly serious infection. I would take it to the vet right away.
yes it can
its jaws
Those dogs come from the same ancestors but the bull dogs are larger so there must be a difference.
No dogs have "locking jaws", that is a myth.
There are no dogs with jaws that actually lock. That is a myth. Some dogs such as Staffordshire & Pit Bull terriers do have extremely strong bites though and can be almost impossible to break, which is where the myth originated.
It is recommended to use cold compresses against your cheeks and jaws for the first 24 hours following surgery. This will minimize the amount of swelling you experience. After 24 hours, it is recommended to use warm compresses to dissipate whatever swelling does occur as quickly as possible. A heating pad would probably be acceptable, so long as you don't set the heat too high.
No, French Bordeaux dogs cannot lock their jaws. This misconception often arises from the strong bite and powerful jaw structure of certain breeds, but anatomically, no dog can truly lock their jaws. Bordeaux dogs, like all breeds, have a typical range of motion in their jaws that allows them to bite and hold, but not to lock.
depending on how broken it is yes but there diet will have to be changed radicaly
Dogs use their teeth and strong jaws to defend themselves.
the difference is that dog can dislocate there jaws :)
yes , the main power is in closing the jaws, the same is true of dogs. It is the holding of the animal still, to retain you grip that causes the problem.
Technically, yes dogs can chew on steel bones. However, this is a very bad idea as it will damage their jaws and teeth badly.