Is the dentist that you are currently going to advising you to have crowns? If so you may want to speak to your dentist first to fully understand why they are advising you to have the crowns/caps. Normally a dentist will not do work that is not required. If after you do speak to your dentist and feel that you still do not want or need the crowns. Then I suggest you get a second opinions. This will help you make the best choices for you.
I hope I have helped