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    Accuracy of Digital Models in Orthodontic Diagnosis
    (Aves Press Ltd, 2008) Ozer, Torun; Genc, Celal
    The overall objective of this study is to compare the measurements of plaster models and digital models on teeth with dental abnormalities. Pretreatment orthodontic models of 30 patients were selected from the archive of our university clinic. The inclusion criteria were as follows; 1. Full complement of permanent teeth including incisors, canines, premolars and first molars. 2. Dentitions with at least four or more teeth showing dental shape abnormalities (hypoplasia or restoration). Mesiodistal widths of each teeth from one molar to the other was measured. Available arch length, required arch length, arch deficiency and Bolton analysis was performed on each of the jaws. Although there were some statistically significant differences between the measurements, Bolton analysis and arch deficiency measurements did not demonstrate statistically significant difference between digital and plaster model measurements. Digital models could be used instead of plaster models for orthodontic diagnosis of a patient.
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    Comparison of facial proportions and anthropometric norms among turkish young adults with different face types
    (Springer, 2008) Arslan, Seher Guenduez; Genc, Celal; Odabas, Bahadir; Kama, Jalen Devecioglu
    Background This study aimed to determine the prevalence of three different face types among Turkish young adults based on facial indices, to assess and compare the vertical and horizontal dimensions for each type, and to establish anthropometric norms for Turkish adults. Methods A total of 173 healthy young adults (83 females and 90 males) 17 to 25 years of age were examined. Using anthropometric landmarks, 8 horizontal and 10 vertical direct measurements were made with a millimetric compass. Results Using facial indices, 59 of the 173 subjects were classified as euryprosopic, 49 as mesoprosopic, and 65 as leptoproposic. In the total evaluation of both groups, all the parameters were higher in the males except forehead heights 1 and 2. A comparison of face types in females and males separately showed no significant differences between the parameters. Conclusions The data presented in this study may help plastic surgeons and orthodontists objectively determine the relationships between facial structures for different face types. Additionally, the facial anthropometric norms derived from this study may be useful in the treatment of Turkish patients.
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    Impact of Buccal Corridors on Smile Esthetics
    (Aves, 2011) Basaran, Guvenc; Veli, Ilknur; Genc, Celal; Gunduz-Arslan, Seher
    Aim: The purpose of the present study was to investigate the influence of buccal corridors on smile esthetics. Subjects and Methods: For this purpose, 10 individuals with following criteria were included to this study; to have an esthetic smile arc, no excessive gingival exposure, ages between 18 and 30 years and equal distribution of the sexes. These criteria and only the perioral photographs were used to limit the scope of the variables and to decrease the dilution of the results. A photo editing software was used to produce 5 varying sizes of buccal corridors and the pictures were classified as Narrow smile, Medium-narrow smile, Medium smile, Medium-broad smile and Broad smile. Altered five smile images of the individuals were showed to the panels consisted of orthodontists, prosthodontists, general dentists, lay people and drawing artists each numbered 10 juries. They were asked to rate that five images from 1 to 5. ANOVA and Tukey tests were used to make a statistical analysis. Results: All of the panels evaluated the smile images in the same manner. The broader the smile it is the more attractive. The most attractive smile was the broad smile and the least attractive was the narrow smile. All panel groups evaluated the smile images in the same manner and there were not statistically significant differences between the groups. Conclusion: These results indicate that; to gain an esthetic smile after orthodontic treatment, clinician must avoid causing broad buccal corridors.
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    Soft Tissue Profile Changes Associated with the Treatment of Class III Anomalies with Maxillary Constriction and Retrusion
    (Aves Press Ltd, 2007) Gunduz-Arslan, Seher; Devecioglu-Kama, Jalen; Genc, Celal; Dari, Osman
    The aim of this study was to evaluate soft tissue profile changes of Class III patients with maxillary constriction and retrusion with area measurement method, following rapid maxillary expansion (RME) + Petit type face mask and fixed orthodontic appliance treatment. Cephalometric radiographs taken from 37 treated and 21 untreated Class III patients were used for this study. These radiographs were taken before and after treatment in test and control groups. Soft tissues were traced on these cephalometric radiographs. Nose, upper and lower lips, chin and free space areas were measured between the E-line and Juanita line. T-tests used to assess these parameters statistically. Significant changes in nose, upper lip, chin and free space areas were observed in the treatment group. The only mean increase occurred in chin area in control group. Increases of nose and upper lip areas were significantly different between treatment and control groups (P<0.001). Present study shows that the treatment with, RME + petit face mask and fixed appliances have an important role in profile improvement.