Hello, thank you for your guidance, yes, Luigi has a lesion on the gum and on the corner of the lips broken, the poor guy really tries his best to eat.
I have two who have gingivitis and they get crises from time to time, I have never seen a case as strong as this one.
Some cats are very badly affected because in fact they are allergic to the dental plaque that forms in their mouths and only removing all the teeth brings them any relief