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Posted on March 26, 2010 at 6:00pm — 11 Comments
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The one concern I have with the All-on-4 is the fact that the fixed prosthesis is secured to the angled correcting (stock) abutments on the fixtures, via small retaining screws similar to the ones used for prostheses attached to stock abutments 20+ years ago. They were known to loosen and fracture. One of the reasons custom abutments came into being. This may result in problems we would like to avoid in the first place.
Happy New Year
Ira
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