The aim of the present study is to determine the effect of surgically repaired UCLP on dental arch dimensions and the need for orthodontic intervention in comparison with other healthy children , the presence of dental anomalies and the best possible standards of care among this group of Egyptian children.

In arranging to distinguish and implement the best possible standards of care for UCLP children by the pediatric dental practitioner, evaluation of early treatment results after essential surgical repair of cleft lip and palate with respect to arch dimensions is fundamental. Although the dental arch dimensions for these children have been evaluated in previous studies , few examiners in Egypt handled this issue Due to racial contrasts in improvement of the dental arch and growth .The deficiency of data in Egypt tending to this insufficient assemble of children presents a gap that prevents the transport of fitting dental care to them. This is considered objective to fulfill this gap by spotting the most characteristics of dental arch dimensions in surgically repaired UCLP children and compares them with those of sound, coordinating, non-cleft.

Inclusion Criteria:

• Cooperative Egyptian children aging from ( 9-12) years.
• Medically free children.
• Children whose families accepts to participate in this study.
• Children with surgically repaired UCLP .

Exclusion Criteria:

• Children with previous untreated dental trauma.
• Children with previous orthodontic treatment
• Children with upper respiratory disease
• Children having any systemic diseases
• Intellectual disabilities or syndromes
• Congenital anomalies other than UCLP were excluded from the study .

Healthy Egyptian children aging from 9-12 years old

Subject age, gender, maxillary arch dimensions, and dental anomalies found.