Category “Q. Invisalign”

I have just finished a course of invisalign aligners and am chuffed to bits, the removable nature of them ment that i could go on the occasional night out/meal with out them as well as take them out to wash my teeth. brilliant stuff. however, I literally finished last week and the dentist just sort of went, OK thats fine, brill. he took photos for his case study as he’s only just started offering the treatment. as a result however im left a bit worried. I just had this thought, if my teeth grew to be in that position albeit the wrong one then whats to stop me having a relapse hes said nothing (after doing a bit of research myself) of a retainer or anything? do i need one after invisalign all the examples i found were after traditional braces. The ting is if I do need one I dontparticularly want to be constantly taking this thing in/out it’ll be just like continuing my treatment for the rest of my life! are there alternatives to retainers? and also if there are not how long do i have to wear the retainer is it ‘for life?’