Fig. 11.10A and B This Class II/2 malocclusion was treated to achieve initial alignment over a 9 month period.
conventional methods can be used for retention. In adolescent treatment, labial bonded retainers can be useful in a 'pause' phase, while awaiting eruption of more teeth (Fig. II. 10).
Bonded labial retainers for upper incisors are increasingly being considered. This may be useful as a short-term measure for impatient adults, allowing earlier removal of brackets. After a few months with a labial bonded retainer, more
Fig. 11.10E and F The bonded brackets were removed, and an upper labial bonded wire was placed to stabilize the improvement Molar bands were left in place. After a 6-month pause, and following the necessary primary tooth extractions and eruption of the lower second premolars, it was possible to resume the treatment. During the pause, there was spontaneous improvement amongst the buccal occlusion, and minimal patient cooperation was required with retention.
In other cases, it may be helpful to provide local bonded labial retention for a few teeth, in addition to vacuum-formed retainers. For example, this is helpful after correction of severely rotated teeth or palatally placed canines (Fig. 11.11), which have a high probability of relapse, and which are not well retained using only Hawley or vacuum-formed retainers.
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