Hi, to be honest I dislike going to the dentist and fear it. But I am a mother of a two year old who recently have to be seen by one. I am trying to get back into the habbit of talking care of my teeth , but as we all know it can be expensive. I had braces in the past , which means I needed to wear a retainer. I have a permanent retainer on my bottom teeth and an invisible retainer on my top. Question is I haven t use my top retainer for about 4 years. I know BAD person but is it okay if I try seeing if it fits? Is it even possible to get my teeth to fit it again? My front teeth feet , but I can tell that my teeth had shifted a lot because my back teeth won t fit, can I fix it if I try to wear it 24/7.