repair or replace chipped bridge (incisors) versus an implant?

[Shoan]

Hello, I'm 56 years old female with a 3-tooth bridge covering the two middle upper-jaw incisors that I've had since 21 yrs old. Main problem: every 3-6 years I get a nice chip in one of front incisors. Recently I chipped this 3 year-old bridge (which hasn't been my favorite one, for various reasons). The bonding with resin compound doesn't hold up, which is why each time I have ended up replacing the past bridges. This time the bonding isn't even holding up a week. What about a porcelain veneer? Is this an option? Or better, instead of replacing the bridge again, would an implant be the way to go over the long run, in terms of cost, esthetics, and general gum/tooth/bone health to the surrounding area? I've read many conflicting accounts. I also went to one implant specialist in Argentina, who recommended I stay with the bridge (before it was chipped), telling me to better use my money for the conservation work I do. Meanwhile an American dentist, whom did not come across as greedy in the least, recommended the implant as the better option over the long term. Was he correct? I appreciate your feedback. Thanks!