Your fine, it's not a bad dent, worse case scenerio you dented the screen not a big deal it's there to keep shit out, if you dont have shit in your engine you have nothing to worry about, if you are worried cause you have shit in your engine then this is the least of your problems. Like i stated in my past 3 posts your car will be fine, if you dont trust me by all means replace the pan, then post pictures of you perfectly fine oil pickup.