https://www.selleckchem.com/products/cu-cpt22.html
Functional appliances are widely used for regulating and directing growth in which commonly used are Frankel regulator and twinblock. Frankel regulator expands the orofacial arena for allowing growth by passive expansion, whereas twin block aids sagittal correction in retrusive mandible. Heres, an attempt to bring about both the changes in a single appliance where sagittal correction as well as keeping away constricted musculature is desired. In this appliance, passive and active expansion has been used simultaneously for better result
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