Background and Aim: Facial features are different depending on gender and race. These features are usually studied in profile view. Angular evaluation of the facial soft tissue profile is important in males and females of different races for correct diagnosis and treatment planning. For this reason, in the present study, we measured the facial profile angles in young adults in Zanjan. Materials and Methods: In this descriptive cross-sectional study, the photographs of 35 males and 35 females between 16 to 30 years were studied. The patients had class I malocclusion without a history of trauma, plastic surgery, or previous orthodontic treatment. Using AutoCAD software (version 2015), 12 angles were measured on the facial profile view photographs. Student t-test was used for statistical analysis. Results: There were significant differences between males and females in four angles namely the nasal angle, angle of the nasal dorsum, angle of the inferior facial third, and angle of facial convexity (P<0.05). The nasal angle in females was larger than that in males, but the angle of the nasal dorsum, angle of the inferior facial third, and angle of facial convexity were wider in males. Other angles did not show any significant difference between males and females.
Conclusion:In the present study, soft tissue facial measurements were performed by means of photogrammetric analysis to help orthodontists carry out quantitative evaluations and make disciplined decisions. The mean values obtained can also be used for studies comparing the records of participants with the same characteristics in other ethnicities.
Introduction: Researchers have been interested in the relationship between sella turcica bridging and various dental anomalies. This study investigates the association of sella turcica bridging and morphologic characteristics with the palatally impacted canine tooth.Materials and Methods: Orthodontic records with high-quality lateral cephalometric and panoramic images were chosen. The study comprised 30 patients with palatally impacted canines (17 females and 13 males) and 30 controls with erupted canines (15 males and 15 females). The measurements were performed using the SCANORA 5.2.6 software. Further, the relevant data was collected and analyzed using SPSS software version 22. Descriptive statistical analysis was used to investigate data after their validation, with t-tests and chi-square tests to compare the two groups. The regression test was used to lessen the effects of confounding variables.Results: In the study group, 5 patients had type III sella turcica bridging, whereas 2 patients in the control group had type III sella turcica bridging. Results showed a statistically significant difference between the two groups (P-value=0.017). In the study group, the interclinoid distance and canine tooth angle were significantly lower than the control group (P-value=0.001, P-value=0.001). However, there were no significant differences in the depth and anterior-posterior diameter of sella turcica between the two groups (P-value=0.543, P-value=0.766). In terms of age (P-value = 0.400) and gender (P-value = 0.605), there was no significant difference between the two groups.Conclusions: The palatally canine impaction may be associated with the bridging of the sella turcica. Therefore, sella turcica bridging can be used as a diagnostic parameter for palatally canine impaction.
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