الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
Objectives: The purpose of this study was to compare the post-surgical outcomes in newborns with unilateral cleft lip and palate who received presurgical vacuum formed nasoalveolar molding aligners (PVFAs) with newborns without PVFAs regarding the Parents’ satisfaction, orthodontist’s and lay people’s perceptions, and to evaluate the effect of PVFAs for newborns with unilateral cleft lip and palate on parent’s satisfaction and morphology of nasoalveolar complex. Materials and Methods: In this prospective controlled clinical trial, twenty-three non-syndromic infants with unilateral cleft lip and palate (UCLP) were included from April 2017 to April 2018. Sixteen infants received PVFAs therapy, while seven infants did not. 2 infants dropped out of the study, so only 14 infants succeeded to complete the period of PVFAs therapy. In treatment group, standardized digital frontal and basilar photographs were taken before initiation of PVFAs therapy (T1), after completion of PVFAs therapy (T2) and 3 weeks after surgical lip closure (T3), and three dimensional digital models were taken at T1 and T2. In control group, only standardized digital frontal and basilar photographs were taken before and 3 weeks after the surgical lip closure. Results: The Parents’satisfaction was higher toward the post-surgical outcomes in infants received PVFAs therapy than those didn’t receive any appliance. Also, most of infant’s parents exhibited their highly satisfaction toward the outcomes of PVFAs therapy in treatment group. The majority of Orthodontists and lay people reported that the infants who received PVFAs therapy showed better post-surgical outcomes than those without PVFAs. The PVFAs therapy showed the ability to improve the alveolar morphology and nasal symmetry. Statistical analyses were done through comparing the pre and post PVFAs therapy. Frontal and basilar photographic analysis showed a statistically significant reduction of columella displacement, inter-labial gap distance and nostril width at CS, while the nasal height, nostril height at CS, nostril width at NCS, columella deviation angle, nasal tip projection and nostril area at both CS and NCS increased significantly with PFVAs therapy. The nasal width, nostril height at NCS showed no significant change between T1-T2. The digital models analysis demonstrated a statistically significant reduction of alveolar cleft width, anterior arch width, arch length, midline deviation and palatal cleft width, while the posterior arch width and arch.perimeter increased significantly with PFVAs therapy. Conclusion: PVFAs were effective in reducing the nasoalveolar deformities associated with infants with UCLP and improved the alveolar morphology and nasal symmetry.