Regret tooth extraction. Will expanders be enough to reverse the extraction?

Question

My upper bicuspids were extracted in order to fix my overbite two years ago. However, as the gaps were closed by the braces, I noticed that my upper teeth are too far back, resulting to my upper lip not being supported. DNA appliance or Biobloc are not available in our place. My dentist suggested to use removable expanders. Will it be enough to fix my problem?

Ira Shapira, DDS · Answer

You can do much to improve look with DNA or other methods of expansion.  I suggest starting with expanders but you must go slow.
When 4 bicuspids are amputated there is usually backward movement of teeth and posterior tipping that can be improved.  
An ALF appliance can also help.

John McDonald, DMD · Answer

Front teeth support lips.  Expansion widens the back teeth.  To regain lip support you would need to return your upper front teeth to their original position.  This means giving you back ALL of your overbite.  The DNA appliance and Bioblock appliances will not help with your concerns.  To make a meaningful change in lip support in a non growing patient usually requires jaw surgery.

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