Analysis of change in arch form with premolar expansion
The arch forms of 38 cases (53 nonextraction and 23 extraction arches) in which expansion, while maintaining arch form, was the objective of the practitioner, were analyzed before treatment, after treatment, and an average of 6 to 8 years after retention. The cubic spline was used to fit a curve rep...
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Veröffentlicht in: | American journal of orthodontics and dentofacial orthopedics 1998-03, Vol.113 (3), p.307-315 |
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Format: | Artikel |
Sprache: | eng |
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