Made an appointment my dr. Looked at my current # 7 trays in my mouth said they're fitting fine I said ok watch next tray. Top left in back not fitting unless I grind ans smash them for a day. Dr finally saw they didn't fit got a second scan. For some reason when doing my scans that also happens to be where the person has to keep rescanning me. Maybe not trained right on this? Suppose to be a premiere Invisalign orthodontist