Will this part of her ear fall out?

My eight year old dog got into a fight with another dog last week. She was badly injured with many laceration and puncture wounds. She is being treated with antibiotic and is healing nicely. One of the many injuries she suffered was to her right ear. The other dog's canine tore her ear a good inch. It has created a triangle on top where the skin is hard and dry. It feels like it's dead skin. If it is dead skin will it fall off on it's own or do we need to go back to the vet?

It was already drying up when we saw the vet and he had a look at it but didn't comment on it since other more serious puncture wounds needed tending.

thanks