So, back to werewolves for a bit. Given that they're as intelligent as humans and have several enemies, they'd most likely try to become more adept in combat, one part of that is martial arts.
Now, moves that don't aim to kill will most likely not, but the ones that do will definitely want to include jaws into their repertoire.
Werewolves are digitigrade and upright humanoid creatures that usually stand at around 190 cm. Other than the legs, most of their difference in anatomy are their thicker necks and head that resembles that of the canis lupus lupus but obviously scaled to fit the proportions.
Werewolves possess strong core muscles. Their muscle fibers are uniformly made up of type 2a and type 1 across the body, giving them better endurance and more options for moves, but making them weaker per unit mass than vampires, who only have type 2a in their legs and only type 2b in the arms and core muscles.
The vampire bit is just extra info, it won't come up in this question.
So, now with that info dumped on your head, how exactly would werewolves use their jaws in combat? My main interests are grappling, killing blows and what limitation/weakness would the jaws have. These aren't separate questions, more like bullet points in an outline that affect one another quite a bit.
The opponents are going to be humans who might or might not have plate armor.