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age: 9 years 6 months - This child had an anterior crossbite 11/41 with stress on 41. The GDR4 was trimmed by grinding the bulging part of the tongue ramp, in order to prevent a buccal movement of the lower incisors. After 3 months of night wear, the crossbite was corrected.
age: 12 years
Alignment and posterior repositioning of the maxillary incisors. Six months in GDR4, then multiband appliance..
age: 12 years
5 months in GDR4 to prepare the installation of a multiband appliance. Alignment and partial correction of the overbite.
CASE # 4
GDR 4 + expansion arch. 12 years child
Class III and crossbite.
Treatment duration: 6 months.
. installation of the expansion arch
. 1 month later: installation of the GDR.
As a conclusion, we can say that the GDR4 efficiently prepares both dental arches for the installation of a multiband appliance.
In order to make the GDR4 as comfortable as possible, don't hesitate to trim the appliance, especially in the frenum and palatal tag regions. Its adjustable design allows a customization for any morphology.
In the early stage of treatment, in addition to nocturnal wear, it is advisable to wear the GDR4 for two hours during day time.
This allows a better adaptation and a better retention of the appliance at night (reflexes).
Dr Guy DELTERME
Tél : +33 1 69 41 90 28