Can I still use my electric toothbrush with my Invisalign/buttons?

There are reasons to alter the aligner timing and time frames. Is your provide a dentist or an orthodontist? It makes a difference.

You are not wearing the retainer properly. It is meant to be worn every night. While it might be OK to occasionally skip a night, it is NOT OK to skip many nights or weeks in a row. The teeth will revert back and then the extreme pressure of reinserting the retainer will loosen your teeth. See...

As long as a few hours elapse between the 2 visits, there should not be a problem having the impressions the same day.

Yes, it is a problem if your attachments are off or partially off. They provide essential leverage. Call your dentist and they will replace them I'm sure.

Palatal expansion occurs along the midline suture of your palate and will most definitely affect the development of your midface (cheek bones). This expansion (if done slowly) is permanent. Palatal expansion benefits also include a broader smile and healthier airway, not to mention creating...

Some attachments are more important than others. If your orthodontist didn’t mention anything it was probably not one of the crucial once. He can always add new attachments or remove some of the old once as needed when a refinement is done.