Effect of bone-grafting the alveolar cleft in unilateral cleft lip and palate patients on nasal morphology, symmetry and nostril shape

Objectives. To evaluate the presence or absence of nasal asymmetry in patients with UCLP before mixed-dentition alveolar bone-grafting (ABG) and to determine if ABG affects nasal morphology, symmetry and nostril shape. Methods. Facial models of 39 patients with UCLP were acquired before and after AB...

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Bibliographic Details
Main Author Sander, Melissa N
Format Dissertation
LanguageEnglish
Published ProQuest Dissertations & Theses 01.01.2007
Subjects
Dental care
Dentistry
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Summary:Objectives. To evaluate the presence or absence of nasal asymmetry in patients with UCLP before mixed-dentition alveolar bone-grafting (ABG) and to determine if ABG affects nasal morphology, symmetry and nostril shape. Methods. Facial models of 39 patients with UCLP were acquired before and after ABG. Image acquisition and analysis was completed utilizing stereophotogrammetry. Registrations and linear measurements were performed to assess nasal morphology and nostril shape. A modified Procrustes technique was used to determine the change in nasal symmetry. Two-tailed, paired t-test and an analysis of covariance were used to assess statistical significance. Results. Significant side-to-side asymmetry exists in the nasal region of patients with UCLP before and after ABG. No significant changes were observed between pre- and post-ABG images based on linear measurements, asymmetry scores and registrations. Gender, surgeon, and observation period were not significant factors. Conclusion. ABG has a minimal effect on nasal morphology, symmetry and nostril shape.
ISBN:0494401540
9780494401545