Sounds like you are unhappy with the appearance of some of your teeth. While it takes little to file down those points; you'll have to pay the dentist for her/his time. More importantly, how does your whole smile look? If those teeth are not so pointy, will something else stand out?
Have a conversation with your dentist about everything you notice about your smile. We take a simple photo, print it, and mark out the pointy parts to see what the rest looks like. That helps us preview results. You don't want to trade one problem for another!