I do not find my quick reply post in this thread. Anyway, I am writing it again.

Thank you so much Bryanna for this detailed, helpful and quick reply. Since, the cost of dental bridges and crown in my country is very cheap (a third world country), I was thinking to replace the bridge with a flexible soft denture, placing separate crowns on abutment teeth in order to increase the life of abutment teeth. after orthodontic treatment which extracted 4 teeth to pull back my front teeth into my mouth, I already have very few teeth in my mouth. I am afraid to loose the abutment teeth, especially since its on a premolar and 2nd molar, I am also afraid that the premolar couldn't withstand the force and crack. please let me know your valuable thoughts. Thanks again.