My front teeth cracked after dental bonding, now my teeth are sensitive and sore. What should I do?

If you do not have trust and confidence in your dentist, or do not like the cosmetic dentistry that he did it would probably be best that you get an evaluation from another dentist.  It would be impossible to diagnose your situation without examining you.

Hello there,
A photo would be helpful, but from what you've expressed, it sounds like you spent money trying to cosmetically correct your teeth with dental bonding.  The first thing that I tell my patients is that dental bonding on the biting surfaces of your front upper teeth is not ideal and likely to fracture in a short period of time.  When they fracture, they can sometimes cause you to loose more tooth structure because often times, part of your tooth fractures off with the bonding material.  I always recommend veneers or crowns for patients trying to cosmetically correct their upper front teeth.  In your case, I would recommend the crowns or veneers (too bad I don't have a photo to consider).  I would not recommend repeatedly getting your teeth bonded because it will not prevent repeated chipping or cracking and could hurt your teeth more in the long run.  Veneers and crowns typically costs between $1,200 to $2,000 for single teeth (and usually a lot less per tooth when a person gets multiple teeth done at one time), depending on your region, but sometimes, it's best to travel for the right cosmetic dentist and the right price.  You don't want the cheapest price by just any dentist; you want the best job and the cheapest price by an exceptional cosmetic dentist.