İlknur Özcan
Istanbul University
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Journal of Oral and Maxillofacial Research | 2013
Taha Emre Köse; Onur Dinçer Köse; Hulya Cakir Karabas; Tamer Lütfi Erdem; İlknur Özcan
ABSTRACT Background Florid cemento-osseous dysplasia (FCOD) is a benign jaw lesion originating from periodontal ligament tissues usually asymptomatic and diagnosed accidentally at routine dental radiographic examination. The purpose of this paper is to report three cases diagnosed as FCOD with their clinical, radiographic and histological findings. Methods Radiologic and clinical symptoms of three cases diagnosed as FCOD are presented. Serum alkaline phosphatase test and biopsy taken from two of the patients are discussed to eliminate the Pagets disease. Results Three patients diagnosed as FCOD and called for routine follow-up. Because of no sign of infection or osteomyelitis, conservative treatment was applied. Conclusions Radiographic examination is significant for the diagnosis of florid cemento-osseous dysplasia, especially in the asymptomatic cases. The roles of the dentist are to ensure the follow-up of the diagnosed patients and to take the necessary measures for preventing from the infections.
Dentomaxillofacial Radiology | 2016
Taha Emre Köse; İşler C; Şenel Şn; Şitilci T; İlknur Özcan; Nihan Aksakallı
Frank-ter Haar syndrome is a genetic disease that is transmitted by autosomal recessive pattern with characteristic features such as megalocornea or glaucoma, a prominent coccyx, heart defects, developmental delays, brachycephaly, a wide anterior fontanel, finger flexion deformities, full cheeks and micrognathia. Dentomaxillofacial features of this syndrome are not well documented in the literature. We present of a 21-year-old male with Frank-ter Haar syndrome and some features that may be linked with this syndrome not reported before in the literature.
Journal of Istanbul University Faculty of Dentistry | 2015
Gamze Aren; Yeliz Guven; Ceren Güney Tolgay; İlknur Özcan; Özlem Filiz Bayar; Taha Emre Köse; Gulhan Koyuncuoglu; Gülsüm Ak
Purpose: The aim of the present study was to investigate the prevalence of dental anomalies in a Turkish population according to the gender and age. Materials and Methods: A retrospective study was performed using panoramic radiographs of 2025 patients (885 males and 1140 females) ranging in age from 9 to 35 (mean age 25.61±10.04) years attending Department of Oral Radiology, University of Istanbul, Faculty of Dentistry. These patients were examined to determine the presence of developmental dental anomalies involving hypodontia, hyperdontia, microdontia, taurodontism and other root anomalies. The incidence of these anomalies were assessed according to the gender and age. Results: Among the 2025 subjects, a total of 96 individuals (42 males and 54 females) showed at least one of the selected dental anomalies (4.74%). Tooth agenesis was the most common dental abnormality (1.77%) followed by taurodontism (1.18%), hyperdontia (0.79%), microdontia (0.54%) and root anomalies (0.44%), respectively. Conclusion: Tooth agenesis is the most common developmental dental anomaly in the studied Turkish population followed by taurodontism.
Archive | 2017
İlknur Özcan
Background: No studies have been done to evaluate radiation exposure to a 10 year old juvenile CIRS phantom using OSL dot dosimetry in conjunction with leaded glasses and thyroid shield, utilizing two and three dimensional imaging for orthodontic purposes. Methods: A juvenile anthropomorphic phantom corresponding to a 10 year old male was used for all exposures. Panoramic radiographs were taken on a Sirona Orthophos XG machine and CBCT scans were taken on a Carestream Kodak 9000 3D machine. The preset pediatric settings were used and with the CBCT, the field of view selected was to image the anterior maxilla, showing the canines and the surrounding area. The images were performed with and without leaded glasses and thyroid shield. Dosimetry was performed using Optically Stimulated Luminescent (OSL) dosimeters. The effective radiation dose was calculated for the organs of the head and neck. Organ fractions irradiated were determined from ICRP-89. Overall effective doses were calculated in micro-Sieverts for the results and were based on the ICRP-103 tissue weighting factors. Results: The effective doses measured with the Panoramic images were significantly less when compared to the CBCT scans. The highest organ dose exposures were in the salivary glands, oral mucosa, and extrathoracic airway. The use of leaded glasses and thyroid shield resulted in a dose reduction of 25% with both the Sirona Orthophos XG and the Kodak 9000 3D machines. Conclusion: This was the first study to evaluate radiation exposure to a 10 year old juvenile CIRS phantom using OSL dot dosimetry in conjunction with leaded glasses and thyroid shield, using two and three dimensional imaging for orthodontic purposes. Restricting field of view to the anterior maxillary region allows CBCT imaging to be used in specific clinical situations when three dimensional assessment of the presence and severity of root resorption is necessary.Purpose To evaluate laboratory and clinically the uncomplicated fragment reattachment using pinholes. Materials and Methods A total of 40 extracted human intact upper permanent central incisors with close similarity were selected and randomly divided into four groups (n = 10) according to the technique of reattachment. The incisal third of 30 specimens were sectioned horizontally. Group I: pinholes, group II: internal dentinal groove, group III: simple reattachment, and group IV (control group): intact teeth. Each fragment was reattached to its sectioned tooth using adhesive bond and resin cement. All specimens were tested for fracture strength under standard conditions in an Instron testing machine. The clinical study was performed on 20 patients, aged 8–16 years, presented with uncomplicated fragments of fractured upper central incisors, and divided into two groups (10 patients each). Group I: pinholes and group II: internal dentinal groove. All patients were followed-up clinically and radiographically at 3, 6, 12, and 18 months. Data were analyzed using one-way analysis of variance and post-hoc test with the significant level P less than 0.05. Results The laboratory study showed that the control group recorded the high strength value followed by pinholes, internal groove, and simple reattachment and the difference was statistically significant. However, the clinical results showed no significant differences between the two techniques. Conclusion It was concluded that the pinholes technique had only a significant effect on fragment reattachment success in the in-vitro study.
The Journal of Advanced Prosthodontics | 2015
Taha Emre Köse; Nihat Demirtas; Hulya Cakir Karabas; İlknur Özcan
PURPOSE The aim of this study was to determine the frequency of significant panoramic radiographic findings and eventual treatment requirements before conventional or implant supported prosthetic treatment in asymptomatic edentulous patients. MATERIALS AND METHODS A total of 743 asymptomatic edentulous patients were retrospectively evaluated using a digital panoramic system. We analyzed the radiographic findings, including impacted teeth, retained root fragments, foreign bodies, severe atrophy of the posterior maxillary alveolar bone, mucous retention cysts, soft tissue calcifications and radiopaque-radiolucent conditions. RESULTS Four-hundred-eighty-seven (65.6%) patients had no radiographic finding. A total of 331 radiographic findings were detected in 256 (34%) patients. In 52.9% (n=175) of these conditions, surgical treatment was required before application of implant-supported fixed prosthesis. However, before application of conventional removable prosthesis surgical treatment was required for 6% (n=20) of these conditions. CONCLUSION The edentulous patients who will have implant placement for implant-supported fixed prosthesis can frequently require additional surgical procedures to eliminate pathological conditions.
Journal of Istanbul University Faculty of Dentistry | 2015
Gülay Altan; Taha Emre Köse; Tamer Lütfi Erdem; İlknur Özcan
Scleroderma is an autoimmune connective tissue disorder which is characterized by fibrosis of visceral organs, skin and blood vessels. This condition can be localized or systemic. Its estimated prevalence is 250 cases in a million and it is more common in women than in men. Resorption of the mandibular angle and coronoid process can be observed in patients with scleroderma. Pressure of fibrous mucocutaneous tissues is thought to be the cause of the resorption. Decreased number of wrinkles due to sclerosis and distinct facial features because of the atrophy of ala nasi are among common clinical characteristics of this condition. The aim of this case report is to present a 40-year-old female patient with scleroderma who presented with signs of resorption at the angle of mandible, coronoid process, as well as widening of the periodontal space.
Journal of Craniofacial Surgery | 2015
Nihat Demirtas; Oya Barut; İlknur Özcan; Suzan Bayer; Hakki Oguz Kazancioglu
AbstractCherubism is an uncommon, nonneoplastic, fibro-osseous disorder of the jaws in childhood and adolescence. It affects the jaw bones by deforming the cortical shell. Clinical features include progressive painless and mostly bilateral expansion of the mandible and/or maxilla. Because fibrous connective tissue replaces osseous tissue, radiographic features generally include expansile osteolytic lesions and a ground-glass appearance. Several treatment protocols for cherubism have been recommended in the literature; however, despite surgical curettage treatment, recurrences may occur.Our aim was to emphasize the high recurrence rate of cherubic lesions. In this article, we present cherubism in a young girl that relapsed after 5 surgical operations before her appearance to our clinic.
Balkan Journal of Dental Medicine | 2015
Meltem Koray; İlknur Özcan; B. Alkan; O. Kesmez; H. Tanyeri
SUMMARY Objective: The aim of this study was to evaluate the outcome of immediate postextraction implant placement. Immediate placement of dental implants have been claimed of the potential advantages such as reductions in the number of surgical interventions, a shorter treatment time, an ideal 3-dimensional implant positioning, the presumptive preservation of alveolar bone at the site of the tooth extraction and soft tissue aesthetics. Method: In this case series we reported to extract 15 teeth in 12 patients (8 males; 4 females, mean age: 46.08 years) and replace the teeth with implants immediately. Results: There were no signs of inflammation or infection and none of the patients had complaints subsequently. All implants were osseointegrated at the time of abutment connection. Postoperative healing was uneventful in all of the patients. No complications were observed. Conclusion: Within the limits of the present study, immediate implant placement was a predictable treatment.
Journal of Oral Rehabilitation | 2000
Tamer Lütfi Erdem; İlknur Özcan; Dilhan İlgüy; Sirin S
Quintessence International | 2003
Gamze Aren; Zuhal Yurdabakan; İlknur Özcan