Periapical abscess from invisalign?

A friend of mine was diagnosed with periapical abscess and now needs root canal at a young age. Is this a common complication of invisalign? She never had any tooth sensitivity or toothache other than some pain when changing invisalign trays. Even the abscess doesnt cause any pain, it was just so swollen and was seen on xray, so I assume the nerve is dead. Just don’t know when the nerve died when she did not have any symptoms before. Thank you in advance.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Dental Residents and Practicing Dentists Source Type: forums