Invisalign Attachment/button missing, now tooth is completely off track! Any suggestions?

If an attachment de bonds in the middle of treatment a new attachment template should be ordered from your doctor for proper replacement ASAP and immediately replaced.  If time lapses or if an existing aligner is used to replace the attachment 9/10 times the attachment will be placed in an ncorrect position and the tooth will fail to track properly.   It is best to have your dentist take a correction mold or scan for new sets of aligners and attachments toxorrect and to catch up on your treatment. 

Without a photo, it's a little difficult to gauge the complexity of the tracking discrepancy. The best answer, is to have your dentist bond your attachment back on as soon as possible. Do you have "chewies"? These really help to get teeth tracking again.

My experience has been that if the aligner is not fitting properly, the teeth won't move according to plan.