It's so great that you were so proactive and sent that study to your doc, and that your doc read it and went along with your well substantiated wishes. Alendronate looks like it mostly maintains bone density gained with Prolia. Keith McCormick, who wrote the books on osteoporosis that many of us have read, says that Reclast is best because it is more potent. You do one infusion then monitor. But taking alendronate for a year is close or maybe as good (according to that study)!

If you are concerned you could consult with Keith McCormick, a chiropractor in W. MA who specializes in osteoporosis. But looks like you have a responsive doctor who respects your research.