A system of differential rapid maxillary expansion is described. This method is particularly useful in patients with cleft lip and palate who have severe defects of lateral maxillary growth, since it enables the maxillary segments to be rotated so that intercanine width increases without a concomitant increase in the intermolar width.
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References
1.
FosterT. D. and ChinnD. (1977) Differential rapid maxillary expansion in cleft palateBritish Journal of Orthodontics, 4, 139–141.
2.
BroadwayE. S. (1967) An appliance for rapid expansion of the maxillaTransactions of the European Orthodontics Society; pp. 163.
