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Soft tissue measurements of Iraqi individuals with Cl I and Cl III skeletal pattern: a comparative cephalometric study | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 8, Issue 2, 2011, Pages 164-170 | ||
| Authors | ||
| Dr. Shahbaa A. Al-Ajwadi B.D.S; ; ; ; Dr. Ammar S. Kadhum; ; ; ; Dr. Yassir A. Yassir; ; | ||
| Abstract | ||
| This study was planned to compare some of the soft tissue measurements in individuals with skeletal Cl I and Cl III, to find out the measurements which may be used as a clinical diagnostic aid to discriminate between both skeletal classes. Seventy three digital true lateral cephalometric radiographs of Iraqi adults were divided according to the ANB angle into 38 skeletal Cl I and 35 Cl III. The soft tissue measurements were analyzed using AutoCAD (2007) software computer program. Descriptive statistics were used to describe the measurements, while independent samples t-test was used to rule out gender differences and skeletal class differences. Gender differences were found significantly in skeletal Cl I for all linear measurements; while in Cl III the significant differences were limited to the anteropoterior measurements only (modified profile thickness at upper lip, modified profile thickness at lower lip, upper lip thickness, and lower lip thickness), with non significant difference for vertical linear measurements (upper and lower Lip height and Mouth height). All angular measurements showed non-significant gender differences. Independent samples t-test revealed that the main differences between classes were found in the labiomental and soft tissue profile angles, which were significantly higher in Cl III than Cl I, while the modified profile thickness at upper lip was significantly higher in Cl I than Cl III, for both genders and for the total sample. Lower lip height, mouth height, and the upper lip height also showed significant differences between classes but with less importance. The labiomental angle and modified profile thickness at upper lip can be used as diagnostic aids to discriminate whether the subject has a Cl I or Cl III skeletal relation. | ||
| Keywords | ||
| Key Words; profile thickness; skeletal Cl III | ||
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