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Simon's classification of malocclusion


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[P. W. Simon (1883–1957), German orthodontist] A classification of malocclusion, first described by Paul Simon in 1926, in which the teeth are related to the Frankfort, mid-sagittal, and orbital planes. Teeth too close to the Frankfort plane are in attraction, whereas those too distant are in distraction. Teeth too close to the mid-sagittal plane are in contraction, whereas those too far away are in distraction. Teeth too anterior to the orbital plane are in protraction, whereas those too posterior to the orbital plane are in retraction.

Subjects: Dentistry.


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