Inclusion Criteria:  All patient age ranges from 8 to 12 years. Patients of both sexes. Cleft lip and palate patients. All the cases showed maxillary arch constriction and deficiency. All patients had maxillary permanent first molars. Primary lip adhesion and palatal closure.  Exclusion Criteria:  Patients had received any surgical assisted rapid maxillary expansion or maxillary protraction of fixed orthodontics before. Maxillary dentition unsuitable to bond the expander (less than two dental units beside permanent first molar). Absent maxillary permanent first molars. Uncooperative patients/parents.