Invisalign Effective Without Extracting Wisdom Teeth?

Some treating dentists prefer to keep the wisdom teeth whenever possible and some would advise them to be removed to avoid any future complications or problems. You can choose to postpone having them taken out until after orthodontic treatment is complete. Keep in mind they can cause shifting in the future. A complete evaluation should be done and your dentist can advise you on what is the very best option for you.

There isn't a cardinal rule for whether wisdom teeth should stay or be extracted. In general wisdom teeth do not impact the orthodontic result.
That being said, in specific situations, such as distalizing molars with Invisalign, it is mandatory to extract your wisdom teeth before treatment. Other reasons to do so include partially impacted teeth that may result in periocoronitis, requiring extraction during treatment to reduce pain, whereby pushing treatment off track for a few days to weeks.