Which models do you mean? A map object? A weapon? A creature?
You need to replace the server dbc with the dbc in your patch.
If you want a weapon or a creature with such a model, you would need to add it to the database and spawn it/equip it.
If you mean a model on a map, it should be there now. (not sure with this one, you probably have to insert the map dbcs and stuff like that too, if not done yet)