Assessement of the Nasal Shape after Orthognathic Maxillary Surgery
Background : Orthodontic and/or surgical modifications to the jawbone could undoubtedly have aesthetic effects on the shape or position of the nose.Aim : Cephalometric analysis was used to evaluate the aesthetic alterations (dimensional and positional) of the nose in this patients.he PIDAQ was cross-culturally adapted into Malay version by forward- and backward-translation processes, followed by psychometric validation.Methods : To compare cephalometric changes in the nose, a cross-sectional study was conducted from January to March 2019. A sample of 20 orthognathic patients was included in this study. Their mean age was 22.40 (+/-6.98 years). The amplitude of the surgical movements of all patients were measured, using measurements on profile teleradiographs and on photos of faces taken before and after surgery. The statestical analysis of cephalometric data before and after surgery was performed using the Wilcoxon test. The significance level was p≤0.05.Results : The results revealed that a significant reduction in the angular values of SNA (°) (p<0.001), GoGn/SN (°) (p=0.038), Occ/Sn (°) (p=0.007) and AoBo (mm) (p=0.025). No statistically significant differences were noted for specific cephamometric variables before and after surgery. For the comparison of facial photographs, all the values of the specific measurements before and after were significant with the exception of Prn - SN.Conclusion : The width of the base of the nasal wing increased, the displacement and the amount of rotation of the nasal tip also increased in most patients. In contrast, a drop in the X-axis to Prn distance was noted.