Extraction-NonExtraction; The Impact on Stability and the Face

82 Pages·2015·25.73 MB·English

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Impact on the Face and Stability
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Stability

Facial Changes in Extraction
and Non-extraction Patients
Boley JC, Pontier JP, Smith S, Fulbright M.
Angle Orthod, 1998; 68:539-546
Can you identify extraction faces?
Judges were respected orthodontists and general dentists
Final photos of 50 cases (25 extraction and 25 non-extraction)
The average prediction was “only slightly better than flipping a
coin”. (54%).
“it was not possible to determine if a patient was treated with
or without the extraction of four premolars by observing
profile and frontal photo”
Impact on Bimaxillary
Protrusion
Systematic Review
Leonardi R, Annunziata A, Licciardello V, Barbato E.
Soft tissue changes following the extraction of premolars in
nongrowing patients with bimaxillary protrusion.
Angle Orthod 2010; 80:211-216