• Institution: LOCKSS
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Biomechanics and force system of butterfly arch: A device for three-dimensional controlling of upper molars

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Figure 15.
Figure 15.

Patient M.A. 16 years old, with a class I severe crowding problem: (a–f) study models before and after treatment; (g, h) butterfly arch when it is in place and when it is removed, respectively; (i, j) lateral cephalogram when the butterfly arch is in place; and (k) cranial base superimposition shows excellent control of anteroposterior and vertical dimensions during treatment although a little vertical growth is evident.

This Article

  1. J Dent Biomech vol. 5