So I got my braces off after 2 years in November last year and it's been 9 months now and I've worn my retainers every single night without a fail and even during the day whenever I can. The reason I've resorted to wearing it during the day even after the compulsory 24/7 period immediately after my braces came off is because my upper teeth have the tendency to shift a noticeable amount during the day. Infact, not even an hour after taking my retainer off, the gap between my two front teeth is back! and if I go without them for the whole day, so 12 hours, by the end of the night I can fit my debit card through the gap.
It's really annoying and my dentist said it's normal and to just keep wearing my retainers but I spent alot on my braces (around £4000) and also my retainers which cost around £280 a pair, they've had to be changed twice, so I've spent a lot on orthodontic work and feel a bit sad that after all that work, my gap still returns. Is there anything else I can do? would a fixed retainer help close the gap again or would it keep it as it was before? I don't think my retainers are tight enough to keep the pressure against my teeth, because I tried to wear my first set and they wouldn't go on so obviously my teeth have shifted a significant amount.