The aim of this trial is to evaluate and compare the short-term effect of VF (NAM) aligners with conventional Grayson appliances at 2 stages T1 (Before NAM therapy), and T2 (After NAM therapy) as regards maxillary arch changes.~Newborns with Bilateral cleft lip/ palate will be allocated randomly into two groups: the first group will receive presurgical vacuum-formed nasoalveolar molding aligners while the second group will receive conventional Grayson acrylic formed nasoalveolar molding appliances. The follow-up period will be 4-6 months till surgical lip closure. The changes in the maxillary arch will be assessed by digital maxillary models.
Newborns with bilateral cleft lip/ palate will be treated pre-surgically by either presurgical vacuum-formed nasoalveolar molding aligners VF (NAM) or conventional Grayson acrylic formed nasoalveolar molding appliances in order to evaluate their effect on the maxillary arch.