It doesnt affect them at all,dont worry
Mine had theirs removed (6 teeth each) and I was sooo worried that they wouldent be able to eat and that they´d be in pain that I prepared a bunch of home made baby food the day before.They didnt need it,infact,when I got to the vets office to pick them up,they were chowing down on a bowl of KIBBLE! lol.They were fine,as if nothing had happened,and their breath smelled WAY better too