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    Cephalometric Investigation of First Cervical Vertebrae Morphology and Hyoid Position in Young Adults with Different Sagittal Skeletal Patterns
    (Hindawi Ltd, 2014) Arslan, Seher Gunduz; Dildes, Neval; Kama, Jalen Devecioglu
    The aim of this retrospective study was to examine hyoid bone position and C1 (atlas) morphology in males and females and analyze these parameters with respect to different sagittal skeletal patterns via cephalometry, with the goal of identifying cephalometric norms. Lateral cephalometric radiographs from 120 individuals (average age: 21.1 + 2.9 years) were classified according to their ANB angle (Class I, II, or III) and used to assess 14 parameters. Class I and II patients showed significant differences in Hy-NSL, Hy-PD, Hy-CVT, Lum, and a-p measurements. These parameters were consistently larger in males than in females. Intergroup comparisons among males showed significant differences in the SNA, ANB, Hy-CVT, X, and Z measurements. The hyoid was positioned more inferiorly and anteriorly and was more prominent in males than in females in all groups. Among participants exhibiting a Class I skeletal pattern, C1 was also larger in the anterior-posterior direction in males than in females. In the sagittal plane, the hyoid was positioned similarly in males with either Class I or III skeletal patterns but was positioned posteriorly in males with a Class II skeletal pattern. In addition, the vertical position of C1 varied with sagittal skeletal pattern in males.
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    Effects on the sagittal pharyngeal dimensions of protraction and rapid palatal expansion in Class III malocclusion subjects
    (Oxford Univ Press, 2008) Kilinc, Ali Serdar; Arslan, Seher Gunduz; Kama, Jalen Devecioglu; Ozer, Torun; Dari, Osman
    This study examined the effects of rapid palatal expansion (RPE) and maxillary protraction headgear therapy in 18 patients with a skeletal Class III malocclusion (11 girls and seven boys; mean age 10.9 years) on upper airway dimensions compared with an untreated control group (nine girls and eight boys; mean age 10.9 years). Pre- and post-treatment cephalometric radiographs were traced and analysed at similar time intervals. The average treatment time was 6.94 +/- 0.56 months. Wilcoxon's test was used for intragroup comparisons and the Mann-Whitney U-test for intergroup comparisons. A significant increase occurred in the maxillary forward position. Mandibular forward movement and downward and backward rotation were inhibited. In addition, the upper incisors were proclined (P < 0.001), and the lower incisors were significantly retroclined (P < 0.05). When the treatment and control groups were compared, the upper airway linear measurements (pns-ad(1), pns-ad(2), APW-PPW, APW'-PPW') and the nasopharyngeal area had increased in the treatment group. These results demonstrated that maxillary expansion together with protraction of the maxilla improved naso- and oropharyngeal airway dimensions in the short term.
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    Öğe
    Treatment of Openbite with First Molar Extraction
    (Aves Press Ltd, 2007) Arslan, Seher Gunduz; Devecioglu-Kama, Jalan; Kilic, Ali Serdar
    The treatment of openbite is very controversial. The aim of this case report was to explain the treatment of an 11.5 years old patient's openbite which has only the first molars were in occlusion. In male patients oral examination, 4 mm open bite were determined which extend from the anterior region to the first molars. Patient was 11.5 years old a male and second and the third molars were not erupted. The first molars were filled. SNGoGn measurement was 42 degrees. The filled first molars were decided to be extracted to facilitate the treatment of openbite. After the extraction, dental openbite were spontaneously closed with a reduction 3 degrees of SNGoGn. Patient was monitored with regular intervals until the second molars erupted. Fixed orthodontic therapy was applied to the correction of the patient's dental irregularities. At the end of the treatment favorable occlusion and facial esthetic were achieved.