Soft Tissue Cephalometric Norms for a Sample of Iraqi Population Group Using Legan and Burstone Analysis
Kerbala Journal of Medicine,
2015, Volume 8, Issue 2, Pages 2222-2228
Abstractbackground: Most classical norms are not applicable to diverse racial and ethnic population and this study was to establish the soft tissue norms of a sample of Iraqi population group using Legan and Burstone’s soft tissue analysis.
Materials and methods: The study was conducted on 60 adult subjects (30 males and 30 females) with esthetically pleasing profiles aged 18–25 years. Standardized lateral cephalograms were taken in a natural head position and analyzed.
Statistics: Descriptive statistics and Standard error of each measurement was calculated. Independent sample t-tests were used to compare the measurements of male and female subjects. One sample t test was used to compare our data with Caucasians group
Results and discussion: Iraqis had more convex faces, maxillary prognathism and high variability regarding mandibular prognathism than Caucasians, a more protrusive upper lip, the nasolabial angle was more obtuse, the lower lip was protrusive resulting in a deep mentolabial sulcus, the lower face–throat angle was more obtuse, the maxillary incisor exposure was more, all vertical ratios and the interlabial gap was similar. Regarding to gender differences in Iraqis, the vertical height ratio was greater in females and the lower face-throat angle was larger in males. Males had less nasolabial angle than females.
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