Page 104 - REMOVABLE ORTHODONTIC APPLIANCES
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96 Removable Orthodontic Appliances
Figure 10.13 Assessment of
anchorage during canine retraction, (a)
Initial occlusion, (b) Correct forces
have been used and the appliance
worn as instructed. 3| has been
retracted into a satisfactory class I
relationship with 3| with little increase
in overjet. (c) Anchorage loss is
demonstrated. No further retraction of
3| is possible as the posterior teeth
have moved forwards and the overjet
has increased. It will not now be
possible to reduce the overjet fully.
