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Öğe Assessment of pharyngeal airway volume in adolescent patients affected by bilateral cleft lip and palate using cone beam computed tomography(E H Angle Education Research Foundation, Inc, 2014) Celikoglu, Mevlut; Ucar, Faruk I.; Sekerci, Ahmet E.; Buyuk, Suleyman K.; Ersoz, Mustafa; Sisman, YildirayObjective: To test the null hypothesis that there were no significant differences for pharyngeal airway volumes between the adolescent patients affected by bilateral cleft lip and palate (BCLP) and well-matched controls using cone beam computed tomography. Materials and Methods: The study sample consisted of 16 patients (11 female and 5 male; mean [SD] age 14.1 [2.1] years) affected by BCLP and 16 patients (10 female and 6 male; mean [SD] age 13.4 [2.0] years) as age- and sex-matched control group. Craniofacial measurements and pharyngeal airway dimension, area, and volume measurements of patients in both groups were calculated and statistically examined using Student's t-test and multiple linear regression analyses. Results: Statistically significant differences were found between the BCLP and control groups for SNB (P <.05), SN-GoGn (P <.05), Co-A (P <.05), PAS (P <.01), minAx (P <.01), and oropharyngeal airway volume (P <.05). The most predictive variables for oropharyngeal airway volume were found as PAS (r =.655 and P =.000) and minAx (r =.787 and P =.000). Conclusions: The null hypothesis was rejected. Oropharyngeal (P <.05) and total (P>.05) airway volumes were found to be less in the BCLP group, and thus the treatment choice in these patients should have positive effects on the pharyngeal airway.Öğe Comparison of pharyngeal airway volume among different vertical skeletal patterns: A cone-beam computed tomography study(E H Angle Education Research Foundation, Inc, 2014) Celikoglu, Mevlut; Bayram, Mehmet; Sekerci, Ahmet E.; Buyuk, Suleyman K.; Toy, EbubekirObjective: To test the null hypothesis that there are no significant differences in pharyngeal airway volumes among adult patients with different vertical skeletal patterns and a clinically normal sagittal skeletal pattern using cone-beam computed tomography (CBCT). Material and Methods: The study sample consisted of 100 adult patients (45 men and 55 women; mean age = 24.0 +/- 5.3 years) with a normal sagittal skeletal pattern divided into three groups according to the vertical skeletal patterns: high angle (32 patients: 15 women and 17 men), low angle (34 patients: 14 women and 20 men), and normal angle (34 patients: 16 women and 18 men) groups. Nasopharyngeal, oropharyngeal, and total airway volumes of patients in all vertical groups were calculated. Group differences were analyzed using one-way analysis of variance and post hoc Tukey tests. Results: Nasopharyngeal airway volume in the high-angle group (mean = 6067.9 +/- 1693.9 mm(3)) was significantly lower than that of the low- and normal-angle groups (P < .01). Oropharyngeal airway volume was highest in the low-angle group (mean = 15,957.6 +/- 6817.2 mm(3)) and significantly decreased in the control (mean = 11,826.1 +/- 4831.9 mm(3); P = .008) and high angle (mean = 10,869.1 +/- 4084.1 mm(3); P = .001) groups. Total airway volume was highest in the low-angle group (mean = 24,261.6 +/- 8470.1 mm(3)) and lowest in the high-angle group (mean = 16,937.0 +/- 5027.4 mm(3); P < .001). Conclusion: The null hypothesis was rejected. Significant differences were found in pharyngeal airway volumes among different skeletal vertical patterns.Öğe Facial soft-tissue thickness in patients affected by bilateral cleft lip and palate: A retrospective cone-beam computed tomography study(Mosby-Elsevier, 2014) Celikoglu, Mevlut; Buyuk, Suleyman K.; Sekerci, Ahmet E.; Ersoz, Mustafa; Celik, Salih; Sisman, YildirayIntroduction: The purposes of this study were to evaluate the facial soft-tissue thicknesses and craniofacial morphologies of patients affected by bilateral cleft lip and palate (BCLP) and to compare the findings with a well-matched control group without any clefts using cone-beam computed tomography. Methods: The study sample consisted of 40 retrospectively and randomly selected patients divided into 2 groups: a BCLP group (20 patients; mean age, 13.78 +/- 3.20 years) and an age-and sex-matched control group without clefts (20 patients; mean age, 13.94 +/- 2.52 years). Craniofacial and facial soft-tissue thickness measurements were made with cone-beam computed tomography. The Student t test and multiple linear regression analyses were performed for the statistical evaluations. Results: The BCLP group had an increased SN-MP angle (P = 0.003), a decreased Co-A (P = 0.000), and retruded maxillary (P = 0.000) and mandibular (P = 0.026) incisors. In addition, patients affected by BCLP had statistically significantly decreased thickness measurements for the variables subnasale (P = 0.005) and labrale superior (P = 0.026) compared with the controls. The most predictive variables were found at U1-SN (r = 0.417, P = 0.004), IMPA (r = 0.368, P = 0.010), and ANB (r = -0.297, P = 0.031) for subnasale and U1-SN (r = 0.284, P = 0.038) for labrale superior. Conclusions: The BCLP group showed greater vertical growth, greater retrusion of the maxilla and the maxillary and mandibular incisors, and decreased subnasale and labrale superior thicknesses compared with the well-matched controls without clefts. These differences should be taken into account when planning orthodontic and orthognathic surgery treatment for those patients.