The ULTIMATE Guide to 3rd Molars, Wisdom Teeth with Braces and Invisalign

I. Introduction
Dr. Amanda from StraightSmile Solutions has extensive content on wisdom teeth and orthodontics; search her YouTube channel for “third molars” or “wisdom”.
This video consolidates key highlights rather than reinventing the wheel.

II. The US Perspective on Prophylactic Extraction
The US removes wisdom teeth preventatively more than other countries.
Teenage extractions are easy and heal quickly (modern steroid cocktails minimize swelling).
Older patients often suffer complications (perio, endo) if extractions are delayed.
If wisdom teeth erupt fully, are in occlusion, and can be kept clean, they can stay – but that is rare.

III. When Third Molars Must Be Removed Before Ortho
Impacted wisdom teeth block the movement of second molars (7’s).
Partially erupted or stuck teeth are ticking time bombs.
Standard of care now often requires a CBCT to assess position and risk before moving posterior teeth.

IV. The CBCT and Standard of Care
Most practitioners have CBCT – its use is becoming standard of care for third molar evaluation.
If you cannot read CBCT yourself, send it to an oral radiologist (patient pays).
Without CBCT, you cannot confidently plan the movement of second molars.

V. Treatment Planning Options
Option 1 (preferred): Extract wisdom teeth before starting ortho. It delays the start by weeks but saves headaches, speeds treatment, and reduces liability.
Option 2: Keep back teeth “locked” and avoid moving them – but this compromises the outcome, especially in patients under 18.
Option 3: Proceed with CBCT monitoring and a strong informed consent, but if things go wrong, patients may demand refunds.

VI. Scanning Challenges
Fully erupted third molars are difficult to scan completely for Invisalign or clear aligners.
If the whole tooth is not captured, the fit will be off. For simple cases limited to front teeth only, you can sometimes ignore them.

VII. The Bottom Line
Dr. Amanda strongly recommends extracting problematic wisdom teeth before starting ortho, easier for the doctor, easier for the patient, more predictable.
If you do proceed without extraction, you must document all conversations, get signed consents, and prepare for potential complications.
When in doubt, take them out first. It’s what most orthodontists do.