Amazing 6-month Smile TransformationUncategorised
Here is a 6 month smile finished with clear aligners in an adult female. One of the concerns with expansion in adult cases is gingival recession and lifetime stability. To understand the soft tissue limits of tooth movement there is nothing better than good old Dr Proffit’s Envelope of Discrepancy. It’s simply a guideline but a powerful one on limits of tooth movement in various directions.
A big tip here is to add extra buccal root torque to your digital treatment simulations per mm of transverse expansion for upper molars and premolars. Finishing of a case to a high aesthetic degree is very important. To achieve the correct angulations and torque for anterior teeth is always a challenge for even a highly skilled orthodontic clinician. Clear aligners managed well can also give an efficient and predictable finish.
Accuracy studies for clear aligners are often flawed. They are often comparing a single Clincheck or measuring against a prediction rather than a real-time simulation.
Newer unpublished studies from various universities around the world presented at conferences are starting to show a promise of increased accuracy with clear aligners, especially when using 3D virtual tracking on a routine basis for orthodontic patients.
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