I have finished my invisalign lite and the refinement period.... my dentist did some IPR on my front teeth and there is still a noticeable gap between two of my teeth. what are my options to have this closed without have to pay more money? i believe this is the fault of the dentist as he is the one that made these gaps.... i think a. the gap he made was too big at the time and b. i don't think he took accurate molds of my teeth for the refinement period..... has anyone else had this issue?