Page 728 - My FlipBook

726 ORTHODONTIA AS' AN OPERATIVE PROCEDURE.
Fig. 668.

Ijiibial bow and hook band for rotation.
In many cases another tooth which needs rotating may be used for
anchorage, and thus double rotation is accomplished, either in the same
Fig. 669.

^^\^
""fe^-'

A, Rubber band from lingual hook to labial bow ; B, from hibial hook to lingual bow.

or opposite directions. A study of the ilUistrations Figs. 670-673
will show the student how the diiferent movements are accomplished.

Fig. 670. Fig. 671.

Fig. 673.

Bandage for double rotation.