Invisalign Darby
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Leonard F. Tau, DMD
Pennsylvania Center for Dental Excellence
215-969-4400
11905 Bustleton Avenue Philadelphia, PA 19116
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An Interview With Dr. Leonard F. Tau , A Qualified Dentist For Moms In Darby

1. Is Invisalign FDA approved?

Yes, the Invisalign System has FDA clearance, meeting all medical device specifications.


2. What are aligners made of?

The virtually invisible aligners, which are made of a thermoplastic material uniquely developed for the Invisalign treatment plan, look similar to tooth-whitening trays. Invisalign aligners are custom-made for you and only you have to move your teeth in the sequence determined by your doctor.


3. How often will I have to wear my aligners?

Trays should be worn 22 out of 24 hours a day. You take them out to eat, drink, brush and floss. You sleep in them everynight. Every two weeks you change trays.


4. Is this a new way to straighten teeth?

The company was founded in 1997 so it is not a new way to straighten teeth.


5. Who should use Invisalign?

Not everyone is a candidate for invisalign. If you are interested in straightening your teeth come into the office and consult with me to see if you are a candidate. Minor tooth movement to relieve crowding and spacing work the best.