Dentist said to not worry about attachments falling out. Is he right?

The invisalign attachments are precisely designed and placed to aid the aligners in having a "handle" on the teeth to "grab" and move them more effectively through treatment.They generally fall off quickly if the bonding procedure was contaminated by moisture. This is not a problem to replace but this needs to be done before you change your present aligners as the index to place them is referenced to fit where your teeth are now. 2 months of treatment and the aligner index will not longer fit precisely and will complicate and reduce the accuracy of the fit of future aligners and compromise the final results.5 attachments is a significant number to hold off on. Most offices would consider this an situation to resolve in less than a week.Good luck