Sixteen months, that really sucks!
Like
isthistaken says, it should surely be the ortho that notices these problems. I think I'd be considering getting another opinion, then you can be totally informed about how your re-treatment can be expected to progress. This way you can be your own best advocate to keep your treatment on track. If you can be specific with another ortho (for second opinion) about exactly what you want from orthodontics, you can ascertain if it's possible, & what will be required to achieve it (in terms of time, as well as method). Should your original ortho conclude that what you want can't be achieved, you have a line of thought that it can.
I know there are fantastic orthos out there, but after my own bad experience, & from your story, I personally wouldnt trust the ortho blindly to achieve best results. I think your best weapon is to be as informed as possible & to be your own advocate. Good luck! Keep us posted with how you're going
My time between bracings will be about 7 years, though I have a year or so of expansion first. About six years between orthodontics. I fervently hope there will be no third time around!
All the best
