• Institution: LOCKSS
LOCKSS

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

(Downloading may take up to 30 seconds. If the slide opens in your browser, select File -> Save As to save it.)

Click on image to view larger version.

Figure 11.
Figure 11.

Super class I molar relationships at both sides after applying 1-mm preactivation bends. Sometimes, space creates mesial to first molars (blue arrow).

This Article

  1. J Dent Biomech vol. 5