Yazar "Tan, Enes" seçeneğine göre listele

Listeleniyor 1 - 10 / 10
  • [ X ]
    Öğe
    Cephalometric Evaluation of Turkish Children With Class III Malocclusion in the Mixed Dentition
    (Aves Press Ltd, 2013) Celebi, Ahmet Arif; Tan, Enes; Gelgor, Ibrahim Erhan; Colak, Tugba
    Objective: To investigate the cephalometric characteristics of Turkish children with Class III malocclusion and compare them with to those of children with clinically normal occlusion during the mixed dentition phase. Materials and Method: Lateral cephalometric radiographs of 80 children with Class III malocclusion (mean age, 10.23 years) and 80 subjects with normal occlusion (mean age, 10.79 years) were examined for the study. Mean values of 13 linear and 21 angular cephalometric parameters were measured and compared. Results: Sagittal skeletal measurements included SNB (Class III, 81.82 +/- 4.26; control group, 74.5 +/- 3.86; p <.001), ANB (Class III, -2.35 +/- 2.02; control group, 2.4 +/- 1.17; p <.0001), Pg to Nasion vertical (Class III, -5.70 +/- 2.68; control group, -9.60 +/- 3.21; p <.05), Wits appraisal (Class III, -5 +/- 4.57; control group, -0.8 +/- 2.44; p <.05), Co-A (Class III, 79.38 +/- 2.19; control group, 83.94 +/- 2.64; p <.01) and Co-Gn (Class III, 105.7 +/- 2.04; control group, 102.4 +/- 1.15; p <.05). Vertical skeletal analysis included Gonial angle (Class III, 132.6 +/- 7.15; control group, 122.1 +/- 6.6; p <.01), and S-Ar length (Class III, 28.31 +/- 0.9; control group, 30.2 +/- 1.4; p <.05). Dentoalveolar measurements included U1 to SN (Class III, 107.96 +/- 8.13; control group, 98.4 +/- 8.19; p <.05). Soft tissue measurements included soft tissue convexity (Class III, 173.4 +/- 3.68; control group, 165.9 +/- 3.25; p <.01). Conclusion: The findings of the study indicated that effective mandibular length was larger in Class III groups and effective maxillary length was smaller in Class III groups.
  • Küçük Resim
    Öğe
    Comparison of Soft Tissue Cephalometric Norms between Turkish and European-American Adults
    (Hindawi Ltd, 2013) Celebi, Ahmet Arif; Tan, Enes; Gelgor, Ibrahim Erhan; Colak, Tugba; Ayyildiz, Erdem
    One of the most important components of orthodontic diagnosis and treatment planning is the evaluation of the patient's soft tissue profile. The main purpose of this study was to develop soft-tissue cephalometric standards for Turkish men and women and compare them with the cephalometric standards of normal European-American white people. The sample included 96 Turkish adults (48 women, 48 men), aged 20 to 27 years. Turkish subjects have increased facial convexity associated with retruded mandible, more obtuse lower face-throat angle, increased nasolabial angle and upper lip protrusion, deeper mentolabial sulcus, and smaller interlabial gap compared with European-American white people. It is appropriate to consider these differences during routine diagnosis and treatment planning of a Turkish patient or an American patient of European ancestry. Turkish males reveal more obtuse mandibular prognathism and upper lip protrusion, and smaller nasolabial angle than females.
  • Küçük Resim
    Öğe
    Determination and Application of Pont's Index in Turkish Population
    (Hindawi Ltd, 2012) Celebi, Ahmet Arif; Tan, Enes; Gelgor, Ibrahim Erhan
    Disharmony between tooth size and dental arch size induces orthodontic problems. So, dental indices were identified by various authors. One of these is Pont who determined a method of prediction of the ideal dental arch width which has become known as Pont's Index. The purpose of this study was to assess the applicability of Pont's Index to a Turkish population and to compare the results with those obtained from studies of different ethnic subjects. The sample comprised 64 male subjects and 78 female subjects with age range from 14 to 15 years. Measurements were obtained directly from plaster casts; they included mesiodistal crown diameters of the four maxillary incisors, as well as interpremolar and intermolar maxillary arch widths as specified by Pont. Correlation coefficients determined between the measured arch width values and those calculated according to Pont's Index were low in all cases, with r values ranging from 0.02 to 0.36. It was concluded that Pont's Index should not be used to predetermine ideal arch width values in Turkish individuals.
  • Küçük Resim
    Öğe
    Effects of cleft lip and palate on the development of permanent upper central incisors: a cone-beam computed tomography study
    (Oxford Univ Press, 2015) Celebi, Ahmet A.; Ucar, Faruk I.; Sekerci, Ahmet E.; Caglaroglu, Murat; Tan, Enes
    Objective: The aim of this study was to evaluate 1. the differences among the cleft sides of unilateral cleft lip and palate (UCLP) patients, non-cleft sides of the same UCLP patients and well matched control patients in the root development and position of permanent upper central incisors and 2. possible gender differences. Materials and methods: The study sample consisted of 40 patient (20 males and 20 females; mean age: 14.84 +/- 3.2 years) with non-syndromic UCLP patients, and 40 control patients (20 males and 20 females; mean age: 13.38 +/- 1.6 years). Cone-beam computed tomography (CBCT) images were taken off from all patients. All tomographs were obtained in supine position by using CBCT (NewTom 5G, QR, Verona, Italy). Results: Significant smaller root volume of central incisor was observed on the cleft side than on the non-cleft side of UCLP patients (P < 0.05). No significant difference in the root development and position of the central incisors was found between the non-cleft side of the UCLP and the control group (P > 0.05). There were no statistically significant gender differences in any linear, angular, or volumetric measurements (P > 0.05). Only the root volume of the cleft side was smaller in females than in males (P < 0.05). Conclusions: In general, root volumes of central incisors on the cleft side were 12.15 per cent smaller than non-cleft side. Root development of the central incisor was much more influenced by the cleft in females than in males.
  • Küçük Resim
    Öğe
    Effects of impacted maxillary canines on root resorption of lateral incisors
    (Urban & Vogel, 2017) Ucar, Faruk I.; Celebi, Ahmet A.; Tan, Enes; Topcuoglu, Tolga; Sekerci, Ahmet Ercan
    The aim of this study was to analyze the amount of root resorption of maxillary lateral incisors by relating the position, location, and angulation of the impacted canine using cone-beam computed tomography (CBCT). The study sample consisted of panoramic and CBCT radiographs of 46 patients with a unilateral impacted canine (16 males and 30 females; mean age: 19.53 +/- 6.66 and 19.44 +/- 5.77 years, respectively). Sector location and canine angulation were measured in panoramics. All tomographs were obtained using CBCT (NewTom 5G, QR, Verona, Italy) and three-dimensional (3D) reconstructions of the maxillary laterals assessed by Mimics 14.01 image analysis software. Upper lateral incisor volume was smaller on the impacted side (401.95 +/- 83.69 mm(3)) than on the nonimpacted side (433.54 +/- 92.6 mm(3), P < 0.05). There were no significant differences of lateral root resorption volume when comparing the impacted canines being on the labial or palatal sides (P > 0.05), but impacted canine angulation was significantly steeper on the labial side (70.85A degrees) than on the palatal side (46.09A degrees, P < 0.05). The volume of root resorption of laterals when comparing the various positions of the canine in different sectors or canine angulation in 30(o) intervals was not statistically significantly different (P > 0.05). The impacted canines caused root resorption of lateral incisors. The angulation of the canine was steeper on the labial side than on the palatal side but root resorption of adjacent laterals was not different. There were no statistically significant differences in the amount of root resorption of the laterals when the canine was evaluated according to localization and angulation.
  • Küçük Resim
    Öğe
    Evaluation of black spaces between maxillary central incisors by dentistry students and laypeople
    (Nihon Univ, School Dentistry, 2017) Ayyildiz, Erdem; Tan, Enes; Keklik, Hakan; Celebi, Ahmet A.; Pithon, Matheus M.
    This study aimed to compare the perception of smile esthetics and alterations among dentistry degree students and laypeople to identify differences in the esthetic perception of black spaces between the maxillary central incisors among Turkish laypeople and students in different study years. Photographs altered to include black spaces of various sizes at the midline were evaluated by 208 dentistry students in years 1-5 and 45 Turkish laypeople. Perceptional differences in different photographs were statistically significant. The students in years 2-5 were more aware of differences between photographs than year 1 students and laypeople. The proportion of participants who decided the most attractive photograph as A was highest among 3rd year students, followed by 5th year students. However, the proportion of students agreeing on the least attractive image was highest among 4th year students, followed by 3rd year students. Photographs A and H were selected as the most and least attractive, respectively, by all participants. The esthetic perception of 1st and 2nd year dentistry students was very different from that of laypeople. To increase esthetic perception among dentistry students, specific lessons with clinical photography should be included in dental education.
  • Küçük Resim
    Öğe
    Hızlı üst çene genişletmesinde kullanılan üç farklı apareyin üst çenenin farklı kemikleşme dönemlerinde uygulanmasıyla üst çene ve çevresindeki kemiklerde meydana gelen değişikliklerin sonlu elemanlar analizi ile değerlendirilmesi
    (Kırıkkale Üniversitesi, 2014) Tan, Enes; Çatalbaş, Bülent
    Hızlı üst çene genişletmesinin kraniofasiyal yapılara etkilerini incelemek için bugüne kadar birçok klinik ve radyolojik çalışma yapılmıştır. Ancak yapılan bu çalışmaların değerlendirilmesinde kullanılan iki boyutlu lateral sefalogramların iskeletsel etkileri gösterme konusundaki yetersizlikleri, hastanın tedavi başında ve sonunda röntgen ışınlarına maruz bırakılması gibi etik bazı nedenlerden dolayı sonlu elemanlar analizi yöntemini de içeren deneysel simülasyon çalışmaları ön plana çıkmıştır. Üst çenenin iki parçası birbiriyle bağlı olduğu gibi, pterigoid, zigomatik, sfenoid ve nazal kemikler gibi kafa kemiklerine de suturlar aracılığıyla bağlıdır. Bu yüzden hızlı üst çene genişletme işlemi sadece dişler ve üst çene bölgesinde lokal etkilere sahip olmayıp, aynı zamanda kafatasının derin ve yüzeyel kemik yapıları üzerinde de ciddi etkilere sebep olabilmektedir. Hastanın yaşı ilerledikçe sutural kemikleşmenin tamamlanmasından dolayı oluşan bu etki azalmakta ve yan etkiler ortaya çıkmaktadır. Üst çene ve çevresindeki kemiklerin birbirleriyle olan bağlantıları farklı zamanlarda tamamen kemikleşir. Bu farklı kemikleşme dönemleri; tüm suturların kemikleşmemiş olduğu, midpalatal ve median palatal suturun kemikleşmemiş diğer suturların kemikleşmiş olduğu ve tüm suturların kemikleşmiş olduğu 3 grupta sınıflandırılır. Hızlı üst çene genişletmesinde apareyler destek aldıkları bölgelere göre diş destekli, diş-kemik destekli, kemik destekli Hyrax apareyleri olarak isimlendirilirler. Bu çalışmada, bilgisayar ortamına aktarılan üst çene darlığına sahip gerçek bir hastaya ait bilgisayarlı tomografi verisi, MIMICS bilgisayar yazılımıyla üç boyutlu model haline getirilmiş ve sonlu elemanlar analizine hazırlanmıştır. Bu model üzerinde diş destekli (4 ve 6 bantlı), diş-kemik destekli (akrilik kaplı) ve kemik destekli (mini-vida) Hyrax apareyleri tasarlanarak yerleştirilmiştir. Farklı sanal modeller üzerinde farklı kemikleşmelerde yapılan sanal uygulamaların neticesinde kraniofasiyal yapılarda meydana gelen etkiler değerlendirilmiştir. Sonuç olarak kraniofasiyal yapılardaki suturlarda kemikleşme düzeyi arttıkça genişletme sonrası kraniofasiyal yapılarda oluşan yer değiştirme miktarları giderek azalmakta ve oluşan von-Mises gerilmeleri giderek artmaktadır. En efektif apareyler sırasıyla kemik destekli, diş-kemik destekli ve diş destekli Hyrax apareyleridir.
  • Küçük Resim
    Öğe
    Ortodontik tedavisi bitmiş hastaların anomali iyileşme derecelerinin değerlendirilmesi
    (2013) Kamak, Hasan; Çağlaroğlu, Murat; Tan, Enes
    Amaçlar: Bu çalışmanın amacı, Kırıkkale Üniversitesi Diş Hekimliği Fakültesi Ortodonti Anabilim Dalı’nda tedavi edilmiş bireylerin anomalilerinin iyileşme derecesini ve anomalinin iyileşme derecesi üzerine cinsiyetler arasındaki farklılıkları değerlendirmektir. Bununla birlikte, diğer bir amacımız ülkemizde bulunan sonuçları diğer ülkelerde elde edilen sonuçlarla karşılaştırmaktır. Gereç ve Yöntem: Bu çalışmanın materyali, tedavisi bitmiş 116 olgunun tedavi öncesinde ve tedavi sonrasındaki ortodontik model ve panoramik radyografilerini içermektedir. Tüm ölçümler ICON indeksi kullanılarak yapılmıştır. Bulgular: Anomalinin iyileşme derecesine göre büyük ölçüde, önemli ölçüde ve orta derecede iyileştirilmiş olan olguların sayıları sırasıyla 64 (% 55,2), 35 (% 30,2) ve 15 (% 12,9)’dir. Küçük ölçüde iyileştirilmiş ve iyileştirilmemiş ya da daha kötüleşmiş olan olguların sayısı ise 1 (% 0,9)’di. Bu oranlar diğer ülke kliniklerinde elde edilen başarı oranlarından yüksek bulunmuştur. Bayanların anomalilerin iyileşme derecelerinin, erkeklerinkinden daha iyi olmasına rağmen, bayanlar ve erkekler arasındaki bu farklılık istatistiksel olarak önemli değildi (p0.05). Sonuçlar: Ülkemizde üniversite kliniklerinde yapılan tedaviler diğer ülkelerde yapılan tedavilerden daha başarılı bulunmuştur. Hekimlerin kendi tedavi sonuçlarını objektif olarak değerlendirebilmelerine, kendilerini eğitebilmelerine ve sonraki tedavilerinde de daha başarılı sonuçlar elde edebilmelerini sağlayan ICON indeksinin bir eğitim aracı olarak tüm üniversite kliniklerinde uygulanmasını tavsiye etmekteyiz.
  • [ X ]
    Öğe
    Radiographic Study of the Prevalence of Dens Invaginatus in a Sample Set of Turkish Dental Patients
    (Medknow Publications & Media Pvt Ltd, 2012) Colak, Hakan; Tan, Enes; Aylikci, Bahadir Ugur; Uzgur, Recep; Turkal, Mustafa; Hamidi, Mehmet Mustafa
    Aim: The aim of this study was to determine the prevalence of dens invaginatus in a sample of Turkish dental patients. Materials and Methods: The sample included 6, 912 panoramic radiographs from different Turkish dental patients. The ages of the patients ranged from 18 to 50 years. A tooth was considered having dens invaginatus if an infolding of a radiopaque ribbon-like structure equal in density to enamel was seen extending from the cingulum into the root canal. Maxillary and mandibular teeth were evaluated on panoramic radiographs to determine the type of dens invaginatus using Oehlers classification. Results: The overall incidence of patients with dens invaginatus was 0.17%. Dens invaginatus were detected in 15 teeth of a total of 192 150 teeth to give a tooth prevalence of 0.008%. Maxillary lateral incisors were most commonly affected teeth in the mouth (80% of cases), followed by maxillary canine teeth (20% of cases). The bilateral incidence of a symmetrical distribution was 25%. Conclusion: The occurrence of dens invaginatus among this Turkish population was rare. Attention should be paid to the presence of dens invaginatus and the treatment problems associated with it.
  • [ X ]
    Öğe
    The Relationship Between Malocclusion Perceptions of Patient and Clinician
    (Aves Press Ltd, 2012) Kamak, Hasan; Caglaroglu, Murat; Catalbas, Bulent; Tan, Enes
    Aim: To evaluate the Aesthetic Component (AC), which is part of Index of Orthodontic Treatment Need (10TN) according to the patient and the clinician's point of view and to examine whether there is a difference between them in terms of awareness according to gender and pubertal situation. Subjects and Method: The study material of 700 patients (50 males,.50 females) with mean age 13.9 consisted of pre-treatment orthodontic models and hand-wrist films. AC images used in determination of the patient and clinician perceptions of malocclusion. Results: These 100 patients gave the same score with.32 clinicians, percentage of compliance of all patients was 32.0 % and there was no statistically significant differences (p>0.05) between clinician and patient's perceptions of malocclusion. Perceptions of malocclusion was also examined according to genders, there was no statistically significant difference between female and male patients, and clinician (p>0.05). Perceptions of malocclusion was also examined according to puberta, there was only no statistically significant difference between patients in pubertal period and clinician (p>0.0.5) but there was statistically significant difference (p<0.05) between patients with pre-and postpubertal period, and clinician. conclusion; Although there was not difference between perceptions of malocclusion of the genders, the patients in pubertal period were more objective, more aware of their malocclusions and dental aesthetics than the pre-and postpubertal patients So that, a greater number of this patients referred for orthodontic treatment.