If you are a severe grinder it is unlikely that you will have much success with dental bonding. It is simply not strong enough to withstand the forces you place on your teeth. A ceramic restoration would be better, using a material like Emax, which is much stronger. But there is no way of saying for sure you will not break these restorations, especially if you forget to wear a nightguard. Have a talk with your dentist and see what your options are. Hopefully you can come up with a solution to your problem. Good luck!