Bionator is a removable appliance used to promote lower jaw growth by eliminating the lip trap and intrusive cheek & tonguemusculature. It is used in cases of class II div I, open bite & class III cases according to the type of bionator(standard/ open bite/ class III bionator).
Dental Arches are almost well aligned
Mandible is in posterior rest position
Skeletal discrepancy is not severe
Labial tipping of upper incisors is not evident
DURATION REQUIRED FROM LAB :3 days
REQUIREMENT FOR LAB :Upper and lower( type 3) dental stone models without voids made from good alginate impression , with advancement bite of 5mm and vertical opening of 4-5 mm
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