Page 29 - My FlipBook

MECHANICAL FIXATION 13

With a pencil line I mark on the model the extent
of the retaining appliance, the lower part of which
extends to about the foramen c?ecum of the lateral

Fig. 0.
incisors. Its upper margin covers the lingual wall of
their cutting edges.
In normal occlusion, where only the buccal half of

Fig. 7.

the cutting edges is in contact with the upper teeth,
this gold bar will not be annoying.
In case of edge to edge bite, the cutting edges are