22 results on '"GÜNEŞ, Nedim"'
Search Results
2. The Retrospective Evaluation of Clinical and Demographic Characteristics of Dental Implant Patients.
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GÜLER, Rıdvan and GÜNEŞ, Nedim
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DENTAL implants ,MAXILLOFACIAL surgery ,EDENTULOUS mouth ,RETROSPECTIVE studies ,DESCRIPTIVE statistics - Abstract
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- Published
- 2023
3. Retrospective evaluation of the prevalence of maxillary sinus septa in the population of the Southeastern Anatolia Region by cone beam computed tomography
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Güneş, Nedim, Ağın, Hatice Demircan, Doğan, Mehmet Sinan, Eratilla, Veysel, Dicle Üniversitesi, Diş Hekimliği Fakültesi, Ağız-Diş-Çene Hastalıkları ve Cerrahisi Bölümü, and Güneş, Nedim
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Sinus septa ,Konik ışınlı bilgisayarlı tomografi ,Sinüs septa ,Cone-beam computed tomography ,Prevalence ,Prevalans - Abstract
AMAÇ: Bu çalışmanın amacı; sinüs septanın, Güneydoğu Anadolu bölgesi popülasyonundaki prevelansını konik ışınlı bilgisayarlı tomografi (KIBT) ile retrospektif olarak değerlendirmektir. YÖNTEM: Bu retrospektif çalışmada, 2015-2020 yılları arasında Dicle Üniversitesi Diş Hekimliği Fakültesi, Ağız, Diş ve Çene Cerrahisi Anabilim dalına çeşitli nedenlerle başvuran 948 hastaya ait toplam 1896 sinüs, KIBT görüntüleri incelenmiştir. 948 hastaya ait (510 kadın, 438 erkek) sinüs septa KIBT görüntüleri değerlendirildi. Sinüs septa tespit edilen vakalar; cinsiyet, lokalizasyon (anterior, orta ve posterior), lateralizasyon (unilateral, bilateral) açısından elde edilen tüm veriler kaydedildi ve istatistiksel olarak analiz edilerek görülme sıklıkları belirlenmiştir. BULGULAR: 18-65 yaş aralığındaki 948 hastanın KIBT görüntüleri değerlendirilmiştir. Bu hastaların maksiller sağ ve sol çeneleri incelenmiş ve 303 hastada toplam 322 sinüs septa tespit edilmiştir.284 hastada tek sinüs septa görülürken, 19 hastada ikişer sinüs septa görülmüştür. 510 kadın hastada (1020 septa incelendi) 178 septa tespit edildi (%9). 438 erkek hastada ise (876 septa incelendi) 144 septa tespit edildi (%7). 322 sinüs septanın, 284 tanesinde tek septa görülürken (%88); 19 tanesinde çift sinüs septa (%5) görülmüştür. Sinüs septa; anteriorda 81 adet (%25), ortada 153 adet (%47), posteriorda 88 adet (%27) olarak tespit edilmiştir. Sinüs septa kadın hastaların 6’sında (510 hastada) çift taraflı görüldü (%1). 166 hastada tek taraflı olarak görüldü. Sinüs septa erkek hastaların 3’ünde ( 438 hastada) çift taraflı görüldü (%0,6). 138 hastada tek taraflı olarak görüldü. SONUÇLAR: Çalışmamızda sinüs septa prevalansı toplamda Güneydoğu Anadolu Bölgesi popülasyonunun % 16’sında görülmüştür. Sinüs septa, kadın hastalarda daha yüksek oranda izlenmiştir. Çift sinüs septa %5 olarak görülmüştür. Bu yüzdelik değerler; p
- Published
- 2022
4. Inraoral ranula and treatment: Case report
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Göksu, Davut, Güneş, Nedim, Dicle Üniversitesi, Diş Hekimliği Fakültesi, Ağız-Diş-Çene Hastalıkları ve Cerrahisi Bölümü, Göksu, Davut, and Güneş, Nedim
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Pseudocyst ,Marsupialization ,Marsupiyalizasyon ,Psödokist ,Ranula - Abstract
Ranula; ağız tabanındaki tükürük bezlerinin ekstravazasyonundan kaynak alan bir mukoseldir. Palpasyonda fluktuasyon gösteren ağrısız ve yumuşak bir kitledir. Ranula için çeşitli tedaviler rapor edilmiştir. Bunlar içerisinde; eksizyon, marsupiyalizasyon, kistik sıvının aspirasyonu gibi çeşitli tedavi yöntemleri yer almaktadır. Bu çalışmamızda eksizyon ile tedavi ettiğimiz ranula vakasını sunacağız. Ranula; It is a mucocele and results from extravasation of the salivary glands in the floor of the mouth. It is a painless and soft mass that fluctuates on palpation. Various treatments have been reported for ranula. Among these; there are various treatment methods such as excision, marsupialization, aspiration of cystic fluid. In this study, we will present the ranula case that we treated with excision.
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- 2022
5. Güneydoğu Anadolu popülasyonunda bifid mandibular kondil prevalansının konik ışınlı bilgisayarlı tomografi ile değerlendirilmesi: Retrospektif bir çalışma
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Güneş, Nedim, Güler, Rıdvan, Ağın, Hatice Demircan, Eratilla, Veysel, Dicle Üniversitesi, Diş Hekimliği Fakültesi, Ağız-Diş-Çene Hastalıkları ve Cerrahisi Bölümü, Güneş, Nedim, Güler, Rıdvan, and Ağın, Hatice Demircan
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Mandibular kondil ,Epidemiology ,Konik ışınlı bilgisayarlı tomografi ,Epidemiyoloji ,Cone-beam computed tomography ,Anormallikler ,Abnormalities ,Mandibular condyle - Abstract
Amaç: Bifid mandibular kondil (BMK) diğer ismiyle çift başlı kondil, mandibular kondil başının ikizleşmesi ile karakterize nadir gö rülen bir durumdur. BMK etiyolojisi tam olarak bilinmemekle beraber gelişimsel ya da travma sonucu oluşabilmektedir. Bu çalışmanın amacı, bifid mandibular kondilin (BMK) Güneydoğu Anadolu popülasyonun daki prevalansının konik ışınlı bilgisayarlı tomografi (KIBT) ile ret rospektif olarak değerlendirilmesidir. Gereç ve Yöntemler: Bu retrospektif çalışmada, 2015-2020 yılları arasında Dicle Üniversitesi Diş Hekimliği Fakültesi, Ağız, Diş ve Çene Cerrahisi ABD’ye çeşitli nedenlerle başvuran 650 (350 kadın, 300 erkek) hastaya ait KIBT gö rüntüleri değerlendirildi. BMK tespit edilen vakalara ait yaş, cinsiyet ve yön (sağ-sol) açısından elde edilen tüm veriler kaydedildi ve istatistik sel olarak analiz edilerek, görülme sıklıkları belirlendi. Bulgular: Yaş ortalaması 40 olan 18-65 yaş aralığındaki 650 hastanın 35’inde (21 kadın, 14 erkek) toplam 40 tane BMK tespit edildi. BMK, 5 hastada bilateral; 30 (17 sağ, 13 sol) hastada ise unilateral olarak görüldü. BMK görülme sıklığı kadınlarda %6, erkeklerde %4,6 olarak tespit edildi. Ayrıca yaş gruplarında BMK’nin pozitif veya negatif olması yönünde, görülme sıklıklarında istatistiksel olarak anlamlı bir fark görülmedi. Sonuç: Çalışmamızda BMK prevalansı, Güneydoğu Anadolu popü lasyonunun %5,38’inde görülmüş olup; kadınlarda ve sağ tarafta daha sık saptandı. Ayrıca yapılan analizde, kadınlarda ve erkeklerde BMK görülme sıklığında istatistiksel olarak anlamlı fark olduğu tespit edildi. Objective: Bifid mandibular condyle (BMC), also known as double-headed condyle, is a rare condition characterized by twinning of the mandibular condyle head. Although the etiology of BMC is not known exactly, it may occur as a result of developmen tal or trauma. The aim of this study was to evaluate the prevalence of bifid mandibular condyle (BMC) in Southeastern Anatolia of popu lation by using cone-beam computed tomography (CBCT). Material and Methods: In this retrospective study, CBCT scans of 650 (350 fe males, 300 males) patients who referred to Dicle University Faculty of Dentistry, Department of Oral and Maxillofacial Surgery between 2015 and 2020 were evaluated. BMC cases were analyzed according to the patients age, gender and direction (right-left) their frequencies were de termined statistically. Results: A total of 40 BMCs were detected in 35 (21 female, 14 male) of 650 patients aged 18-65 years, with a mean age of 40. BMC, bilateral in 5 patients; it was seen unilaterally in 30 (17 right, 13 left) patients. The incidence of BMC was 6% in women and 4.6% in men. In addition, there was no statistically significant differ ence in the incidence of positive or negative BMC in age groups. Con clusion: In our study, the prevalence of BMC was seen in 5.38% of the Southeastern Anatolian population, and it was more common in women and on the right side. In addition, it was determined that there was a statistically significant difference in the incidence of BMC in men and women.
- Published
- 2022
6. Lokal ve sistemik borik asit uygulamasının titanyum implantların osseointegrasyon düzeylerine etkileri
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Güneş, Nedim, Bozoğlan, Alihan, Dündar, Serkan, Dicle Üniversitesi, Diş Hekimliği Fakültesi, Ağız-Diş-Çene Hastalıkları ve Cerrahisi Bölümü, and Güneş, Nedim
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Kemik implant teması ,Osseointegration ,Osseointegrasyon ,Titanium implant ,Bone implant contact ,Boric acid ,Kemik implant kaynaşması ,Bone implant connection - Abstract
Amaç: Bu çalışmada, sıçan tibialarında titanyum implantların osseointegrasyonuna lokal ve sistemik borik asit (BA) uygulamasının etkilerini araştırmayı amaçladık. Gereç ve Yöntem: Titanyum implantlar, 32 sıçandan oluşan bir numune grubunun sağ tibia kemiğine cerrahi olarak entegre edildi. Sıçanlar dört tedavi grubuna ayrıldı: kontroller (CNT) (n=8), lokal BA (LBA) (n=8), sistemik BA (SBA) (n=8) ve sistemik ve lokal BA (SLBA) ( n=8). Kontroller, implant cerrahisinden sonra herhangi bir uygulama görmedi. LBA grubunda implant soketlerine lokal BA uygulandı, ardından implantlar soketlere yerleştirildi. SBA grubuna periton içi 8 mg/kg BA uygulandı. SLBA grubunda implant soketlerine lokal BA uygulandı, ardından implantlar soketlere yerleştirildi; ardından günde 8 mg/kg BA periton içi uygulandı. Deney periyodu 28 gün sürmüş, bundan sonra hayvanlara ötenazi uygulanmış ve implantlar çevredeki kemik dokusu ile birlite alınmıştır. Bulgular: Dekalsifiye olmayan histolojik yöntem kullanılarak kemik-implant kaynaşması (KİK) oranları (%) incelendi. SLBA ve SBA gruplarında KİK oranları, kontroller ve LBA grubu ile karşılaştırıldığında yüksekti (p0.05 p=0.38). Sonuç: Bu çalışmanın sınırlamaları dahilinde, lokal uygulama ile sistemik ve sadece sistemik BA uygulamasının titanyum implantların osseointegrasyonunu artırabileceği sonucuna varılabilir. Objective: In this study, we aimed to investigate the effects of local and systemic boric acid (BA) application on the osseointegration of titanium implants in rat tibias. Materials and Methods: The titanium implants were integrated surgically to the right tibias of a sample group of 32 rats. Rats were randomly divided into four treatment groups: controls (CNT) (n=8), local BA (LBA) (n=8), systemic BA (SBA) (n=8), and systemic and local BA (SLBA) (n=8) groups. Controls received no further treatment following implant surgery. In the LBA group, local BA was applied locally in the implant sockets, after which the implants were inserted in the sockets. In the SBA group, 8 mg/kg BA was applied intraperitoneally. In the SLBA group, local BA was applied locally in the implant sockets, after which the implants were inserted in the sockets; then, 8 mg/kg BA was applied intraperitoneally in a day. The experimental period lasted 28 days, after which the animals were euthanized and the implants collected, along with some surrounding bones from each rat. Results: Bone–implant connection (BIC) ratios (%) were observed using the non-decalcified histologic method. In the SLBA and SBA groups, BIC ratios were high compared with the controls and the LBA group (p0.05 p=0.38). Conclusion: Within the limitations of this study, it may be concluded that systemic and systemic with local BA application could increase the osseointegration of titanium implants.
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- 2022
7. Güneydoğu Anadolu Bölgesi Popülasyonunda Maksiller Sinüs Septa Prevalansının Konik Işınlı Bilgisayarlı Tomografi ile Retrospektif Olarak Değerlendirilmesi
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GÜNEŞ, Nedim, primary, DEMİRCAN AĞIN, Hatice, additional, DOĞAN, Mehmet Sinan, additional, and ERATİLLA, Veysel, additional
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- 2022
- Full Text
- View/download PDF
8. A retrospective evaluation of bifid mandibular canal prevalence of Southeastern Anatolia population by cone-beam computed tomography
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GÜNEŞ, Nedim, primary, GÜLER, Rıdvan, additional, DEMİRCAN AĞIN, Hatice, additional, DÜNDAR, Serkan, additional, and ERATİLLA, Veysel, additional
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- 2022
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9. Evaluation of Bifid Mandibular Condyle Prevalence Southeastern Anatolia of Population by Using Cone Beam Computed Tomography: A Retrospective Study
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GÜNEŞ, Nedim, primary, GÜLER, Rıdvan, additional, DEMİRCAN AĞIN, Hatice, additional, and ERATİLLA, Veysel, additional
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- 2022
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10. Retrospective Evaluation of The Prevalence of Accessory Mental Foramen in Southeastern Anatolian Population By Cone Beam Computed Tomography
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GÜNEŞ, Nedim, primary and GÜL, Mehmet, additional
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- 2021
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11. Güneydoğu Anadolu Popülasyonunda Aksesuar Mental Foramen Prevalansının Konik Işınlı Bilgisayarlı Tomografi İle Retrospektif Olarak Değerlendirilmesi.
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GÜNEŞ, Nedim and GÜL, Mehmet
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STATISTICS , *MENTAL foramen , *MANDIBLE , *RETROSPECTIVE studies , *DESCRIPTIVE statistics , *COMPUTED tomography , *DATA analysis - Abstract
Background: This study aims is to retrospectively evaluate the prevalence and localization of the accessory mental foramen in the Southeastern Anatolian population using Cone-Beam Computed Tomography. Materials and Methods: In this retrospective study, cone bone computed tomography images of 629 patients who applied to Dicle University Faculty of Dentistry, Department of Oral and Maxillofacial Surgery between 2015 and 2020 for various reasons were retrospectively evaluated and 61 accessory mental foramen fixations were made. the reported case; Age, gender, and localization were evaluated. The mean distance between the mental foramen and the accessory mental foramen was also calculated, and all measurements were then statistically analyzed. Results: As a result of the analysis, 629 patients were evaluated. AMF was detected in 61 of them. While 28 of them were male patients, 33 of them were determined in female patients. While unilateral accessory mental foramen was detected in 56 patients, it was detected bilaterally in 5 patients. After the comparison made by gender, the mean value was found to be 1.931 for men, while this value was found to be 1.91 for women. As a result of the statistical analysis, no significant difference was found between them. Conclusions: As a result of the evaluations, we think that gender and age do not affect the distance between the mental foramen and the accessory mental foramen. Larger studies with larger samples are required for more precise results. [ABSTRACT FROM AUTHOR]
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- 2021
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12. Evaluation of the Changes Created by Endosteal Implants Installed at Different Lengths, Angles and Diameters on the Maxilla and Mandible Using Three-Dimensional Modeling and Finite Elements Stress Analysis.
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Güneş, Nedim and Güner, Rezzan
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FINITE element method ,THREE-dimensional modeling ,MAXILLA ,COMPACT bone ,MANDIBLE - Abstract
The aim of this study was to compare the stress values on the implant caused by the change in the implant diameter, length, and the angle of the implant placement. Thus, our goal was to determine the correct implant preference with regard to the appropriate diameter, length, and insertion angle. In our study, a total of 6 different types of implants with 2 different diameters (3.7 mm and 4.7 mm) and 3 different lengths (5 mm, 10mm, and 13mm) belonging to these diameters were selected. These 6 different sized dental implants were applied to the maxilla and mandible, vertically and angled, and a total of 24 models were obtained. The maximum and minimum principal stress values in cortical and cancellous bone were determined as a result of the applied forces. The maximum and minimum von misses stress values and the places where they occurred were determined as a result of the application of the vertical and oblique (30 °) forces, with a total of 300 N from the 3 different occlusal points by placing Zimmer brand implants that were 5, 10, and 13 mm in length and 3.7 and 4.7 mm in diameter on the maxilla and mandible separately at an angle of 30 °. Taken together, in all models, under each loading condition, as the implant diameter and length increased, the stress levels in the bone and implant decreased. Thus, implant diameter is more effective than implant length at changing the stress values. There was a significant increase in the stress levels of the cortical bone and implants in the oblique loading models compared to the vertical loading models. [ABSTRACT FROM AUTHOR]
- Published
- 2021
13. Değişik çap, boy ve açıda yerleştirilmiş endosteal implantların, farklı kuvvet yönleri altında, maksilla ve mandibulada oluşturduğu değişikliklerin üç boyutlu modelleme ve sonlu elemanlar stres analizi ile değerlendirilmesi
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Güneş, Nedim, Güner, Rezzan, Dicle Üniversitesi, Sağlık Bilimleri Enstitüsü, Ağız Diş Çene Hastalıkları ve Cerrahisi Anabilim Dalı, TR195519, Güneş, Nedim, and Diğer
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Stress distribution ,Dental implantation ,Biyomekanik ,Dental implants ,Biomechanic ,Sonlu elemanlar stres analizi ,Stres dağılımı ,Finite elements analysis ,Kemik yoğunluğu ,Finite elements stress analysis ,Diş Hekimliği ,Osseointegration ,Dentistry ,Dental stress analysis ,Biomechanics ,Dental implantlar ,Bone density - Abstract
Branemark’ın osseointegrasyon kavramını ortaya attığı 1969 yılından günümüze kadar geçen sürede implantların oral ve maksillofasiyal rehabilitasyonda kullanımı oldukça yaygın hale gelmiştir. Dental implantların uzun ve kısa dönem başarısında biyomekanik faktörler önemli role sahiptir. Kemikteki stres dağılımını etkileyen faktörler; implant materyali, implant tasarımı, üst yapı materyali, implant- kron oranı, çevreleyen kemiğin kalite ve kantitesi, implant kemik ara yüz mekanizmalarıdır. Hekimler farklı geometriye sahip implantları ve farklı implant tiplerini tercih ederek alveol kemiğine gelen stresi değiştirebilirler. İmplant makro geometrisi implantın çapı, uzunluğu ve yiv tasarımlarını içerir. Ayrıca implantın alveol kemiğine yerleştirilme açısı da stresi etkileyen diğer bir faktördür. Oklüzal kuvvet uygulamaları, implant-protez kompleksindeki stres ve gerinim miktarını arttırır ve implant etrafındaki kemik remodelasyonunu etkiler. İmplant destekli protezlerde en uygun biyomekanik koşulları sağlamak için, protezin başarısını etkileyen biyomekanik faktörleri en iyi şekilde organize etmek temel zorunluluktur. Diş hekimliğinde, kemik içi stres ve gerinim seviyeleri invivo olarak ölçülemediği için, biyomekanik kuralların kullanıldığı birçok invitro çalışma yapılmaktadır.Çalışmamızda da invitro olarak; 2 farklı çapta (3,7 mm, 4,7 mm) ve bu çaplara ait 3 farklı uzunlukta (5 mm, 10 mm, 13 mm) toplam 6 adet dental implant seçildi. Bu 6 farklı boyuttaki dental implant, tek tek, vertikal ve açılı olmak üzere maksilla ve mandibulaya uygulanarak, toplam 24 adet model elde edildi. Tüm implantlara abutment ve metal destekli seramik kuron yine sanal ortamda yerleştirildi. Metal destekli seramik kuronların belirli noktalarından dik ve oblik yönde kuvvet ayrı ayrı uygulanarak, toplam 48 adet çalışma grubu elde edildi. Uygulanan kuvvetler sonucunda kortikal ve spongioz kemikte oluşan maksimum ve minimum asal gerilme değerlerine ve implantlarda meydana gelen Von misses gerilme değerlerine; implant çapı, implant uzunluğu ve kemik tipinin etkisi 3 boyutlu sonlu elemanlar stres analiz yöntemi (FEM) kullanılarak incelendi. Anahtar sözcükler: 1) Sonlu elemanlar stres analizi 2) Dental implantlar 3) Stres dağılımı 4) Kemik yoğunluğu 5) Biyomekanik Since Branemark introduced the concept of osseointegration in 1969, the use of implants for oral and maxillofacial rehabilitation has rapidly increased. Biomechanical factors play a substantial role in implant success in long and short term. The factors that effect the stress disturibution on bone are implant material, implant designment, body work material, implant rate, the quality and quantity of surrounding bone and implant-bone interface. The dentists can change the stress on alveole bone by preferring the implants of different geometry and types. The micro geometry of implant includes diameter, length and Thread-form Configuration. The diameter of implant’s placement on alveole bone is also a factor that effects the stress. The application of occlusal forces induces stresses and strains within the implant-prosthesis complex and effects the bone remodeling process around implants. In order to achieve optimized biomechanical conditions for implant-supported prostheses, conscientious consideration of the biomechanical factors that influence prosthesis success is essential. Since, bone internal stress and strain cannot be measured in vivo, various invitro studies are conducted by using biomechanic rules. In our invitro study, six dental implants which were at two different diameters (3,7 mm, 4,7 mm) and at three different lengths (5 mm, 10 mm, 13, mm) belonging to these diameters were chosen. Totally 24 models were obtained by placing the implants of six different dimensions in maxilla and mandible vertically and angularly, and one by one. Abutment and metal backed ceramic crown was placed in implants again in virtual platform. Totally 48 study groups were obtained by applying force to the specific points of metal backed ceramic crowns vertically and obliquely. The effect of implant diameter, implant length and bone type to the values of maximum and minimum principle stress occurred in cortical and spongioz bone and values of Von Misses stress occurred in implants as the result of the forces applied was investigated by using Finite Elements Analysis (FEM). Key words: 1) Finite elements analysis 2) Dental implants 3) Stress distribution 4) Bone density 5) Biomechanic Bu Doktora Tezi DÜBAB Tarafından Desteklenmiştir. Proje No: 12-DH-76
- Published
- 2013
14. Grading of serous cystadenocarcinoma and relatinship between immünreactivitity of BRCA1 P53
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Güneş, Nedim, Yılmaz, Fahri, Patoloji Anabilim Dalı, Dicle Üniversitesi, Tıp Fakültesi, Patoloji Anabilim Dalı, and Güneş, Nedim
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Over kanseri ,Ovarian cancer ,Jinekoloji ,Pathology ,Kadın hastalıkları ,Patoloji - Abstract
VII-OZET Over kanserleri jinekolojik maligniteler içinde en çok ölüme neden olan kanser türüdür. Bunların da en sık görülen tipi over yüzey epitel kökenli karsinomlardır. Bütün over malignitel erinin %40'ını seröz papiller kistadenokarsinomlar oluşturur. Diğer jinekolojik malignitelerin aksine over karsinomlannda üzerinde geniş uzlaşı sağlanmış bir histopatolojik derecelendirme sistemi olmadığından derecenin prognostik önemi iyi tanımlanmamıştır. Bu çalışmadaki amacımız; over seröz karsinomlannda ikili derecelendirme sistemini ve bu derece sistemini kullanılmakta olan diğer derecelendirme sistemleri (FIGO, Shimizu-Silverberg) ile karşılaştırmak ve bu tümörlerde birer tümör baskılayıcı gen olarak kabul edilen BRCA1 ve p53'ü immünohistokimyasal olarak çalışmaktır. Çalışmamız için DÜTF patoloji arşivinden seröz papiller kistadenokarsinom tanısı almış 58 olgu seçildi. Bunların ikili sisteme göre derecelendirmelerinde 12 (%21)'si düşük, 46 (%79)'sı yüksek dereceli, FIGO sistemine göre; 9 (%16)'u derece I, 29 (%50)'u derece II, 20 (%34)'si derece III, Shimizu-Siverberg sistemine göre ise; 11 (%20)'i derece I, 29 (%50)'u derece II, 18 (%30)'i derece III olarak bulunmuştur. P53 olguların %57 (33/58)'inde BRCA1 (GLK2) ise %67 (39/58)'sinde pozitif izlendi. BRCA1 pozitif olanların 24 (%41)'ü nükleer, 10 (%17)'u nükleer+stoplazmik, 5 (%9)'i ise sadece stoplazmik boyandı. p53 ve BRCA1 pozitifliği ile tümürün histolojik derecesi arasındaki ilişkiye bakıldığında p53'ün boyanma oranı yüksek derecelilerde (%65) düşük derecelilere (%25) oranla daha yüksektir. BRCA1 (GLK-2) ikili derecelendirme sistemine göre düşük dereceli dediğimiz olguların %92 (ll/12)'sinde yüksek dereceli dediklerinizin ise %61 (28/46)'inde pozitiftir. Sonuç olarak; ikili derecelendirme sistemi FIGO ve Shimizu-Silverberg sistemleri ile iyi bir uyumluluk göstermektedir. Ayrıca tanımlanması kolay iki kritere göre değerlendirilmesi ve yalnız iki kategoriye (düşük, yüksek) ayrılması nedeniyle, ikili derecelendirme sisteminin over seröz kistadenekarsinomlarında daha verimli olacağını desteklemektedir. P53'ün aksine yüksek dereceli tümörlerin BRC Al ekspresyon oranı düşük (%61), düşük dereceli tümörlerin ise yüksek (%92) olarak bulunmuştur. P53 ile BRCA1 immünreaktivitesi arasında herhangi bir ilişki saptanmamıştır. 38 ABSTRACT Ovarian cancer is the most lethal gynecological malignancy and surface epithelial tumors are the most common type of ovarian cancer. Papillary serous carcinoma is believed to account for 40% of all malignant ovarian tumors. In contrast to other gynecological carcinomas the prognostic relevance of grading is not well established for carcinomas of the ovary, mainly because of the lack of a universally accepted histopathologic grading system. The purpose of this study to evaluate a two-tier grading system and comparison of the usefulness between this new system for ovarian serous carcinomas and the others.(FIGO,Shimizu-Silverberg). And we examined immunohisthochemically the overexpression of BRCA1 and p53 proteins, which are classified in tumor suppressor genes, in these tumors. For this study fifthy eight cases of papillary serous carcinomas of the ovary were selected from archives of Dicle University, Medical Faculty, Department of Pathology. Using two-tier grading system cases were disributed as follows; low grade, 12 (%21) cases, high grade, 46 (%79) cases. Using FIGO grading system grade I, 9 (16%) cases, grade II, 29 (50%) cases, grade III, 20 (34%) cases and using the Shimizu-Silverberg system grade I, 11 (19%) cases, grade II, 29 (50%) cases, grade III, 18 (31%) cases. Positive p53 staining was dedected in 57% (33/58) and BRCA1 was dedected in 67% (39/58) of ovarian serous carcinomas. In 24 (41%) cases BRCA1 was dedected in the nucleus, in 10 (17%) cases was dedected both the nucleus and cytoplasmic, in 5 (%9) cases was dedected only cytoplasmic. The relationship between p53 and BRCA1 proteins and histopathologic grade was analysed. High grade ovarian serous carcinomas had a higher rate of p53 expression (65%) compered to low grade (25%) tumors. BRCA1 immunstaining was dedected in 92% (1 1/12) of low grade and 61% (28/46) of high grade tumors according to two-tier grading system. As a results, there is a good correlation between the two-tier grading system and the FIGO and the Shimizu-Silverberg grading systems. Because this system is based on defined criteria that are easy to follow and because it involves only two diagnostic categories, it should provide better reproducibility in the grading of serous cystadenocarcinomas. In contrast to p53,- high grade tumors had a lower rate of BRCA1 expression (61%) compered to low grade (92%) tumors. And there was not found any relationship between the p53 and BRCA1 immunreactivity. 39 45
- Published
- 2005
15. Pentoxifylline and electromagnetic field improved bone fracture healing in rats
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Atalay, Yusuf, primary, Güneş, Nedim, additional, Güner, Mehmet Derviş, additional, Akpolat, Veysi, additional, Çelik, Mustafa Salih, additional, and Güner, Rezzan, additional
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- 2015
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16. Long-term effects of antihypertensive medications on bone mineral density in men older than 55 years.
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Ağaçayak, Kamil Serkan, Güven, Sedat, Koparal, Mahmut, Güneş, Nedim, Yusuf Atalay, and Atılgan, Serhat
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ANTIHYPERTENSIVE agents ,BONE density ,CALCIUM channels ,ADRENERGIC beta blockers ,COMPUTED tomography ,BONE resorption - Abstract
Introduction: In this study, we investigated the effects of long-term antihypertensive treatment with calcium channel blockers or beta blockers on the bone mineral density of maxilla, as determined by cone-beam computed tomography (CBCT). Material and methods: This retrospective study was conducted on CBCT images of men older than 55 years who had received different dental indications. Data were grouped into three categories according to the antihypertensive medication history of the patients: group A included patients who had been taking beta-blocker treatment for more than 5 years, group B included patients who had been taking calcium channel blocker treatment for more than 5 years, and the control group included patients who had never used any hypertensive medications before. Results: Statistically significant differences were observed between the beta blocker and calcium channel blocker groups. Conclusion: In hypertension treatment, beta blockers may be preferred to calcium channel blockers in patients at high risk for osteoporosis and bone resorption. [ABSTRACT FROM AUTHOR]
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- 2014
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17. Displaced lower third molar tooth into the submandibular space: Two case reports.
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Kose, Ibrahim, Koparal, Mahmut, Güneş, Nedim, Atalay, Yusuf, Yaman, Ferhan, Atilgan, Serhat, and Kaya, Gürkan
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DENTAL malpractice ,SUBMANDIBULAR gland ,DENTAL research - Abstract
The aim of this article is to emphasize that the accidental displacement of a lower third molar during extraction is a rare, but potentially serious complication. We present two case reports on a lower third molar tooth dislodged into the submandibular space following its removal from the sockets and the subsequent management of this rare complication. Differences in the direction of displacement, the size of fragment, delay in retrieval, and tissue reactions can all influence this potential serious complication and hence no one technique is uniformly applicable. Though a rare complication, clinicians must be aware of possible lower third molars dislodgement into tissue spaces and the necessity to initiate prompt and appropriate management. [ABSTRACT FROM AUTHOR]
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- 2014
18. Eosinophilic colitis presenting with lower gastrointestinal bleeding: An uncommon entity with a rare presentation.
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Kefeli, Ayşe, Yeniova, Abdullah Özgür, Başyiğit, Sebahat, and Güneş, Nedim
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- 2015
- Full Text
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19. A retrospective evaluation of bifid mandibular canal prevalence of Southeastern Anatolia population by cone-beam computed tomography
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Nedim GÜNEŞ, Rıdvan GÜLER, Hatice DEMİRCAN AĞIN, Serkan DÜNDAR, Veysel ERATİLLA, Dicle Üniversitesi, Diş Hekimliği Fakültesi, Ağız-Diş-Çene Hastalıkları ve Cerrahisi Bölümü, Güneş, Nedim, Güler, Rıdvan, and Ağın, Hatice Demircan
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Bifid mandibular canal,alveolaris inferior,cone-beam computerized tomography,anatomical variation ,Health Care Sciences and Services ,General Earth and Planetary Sciences ,Sağlık Bilimleri ve Hizmetleri ,General Environmental Science - Abstract
Introduction: Bifid mandibular canal (BMC) is often detected incidentally on radiological examination and can be observed in unilateral or bilateral forms. The correct localization of the BMC plays an important role in the prevention of complications such as paresthesia, anesthesia, bleeding, traumatic neuroma, which may occur during or after surgical operations on the mandible such as sagittal split ramus osteotomy, impacted third molar tooth extraction, and dental implant surgery. Objective: This study aims to retrospectively evaluate the prevalence of bifid mandibular canal (BMC) in the Southeastern Anatolian population via Conical Beam Computed Tomography (CBCT). Material and Method: In this retrospective study, CBCT images of 615 patients, who applied to the Department of Oral and Maxillofacial Surgery in the Faculty of Dentistry at Dicle University, Turkey, for various reasons from 2015 to 2020, is evaluated and cases with bifid mandibular canals are examined. The prevalence evaluation is conducted by statistical analyses in terms of sex and laterality. Results: According to the analyses, the BMC prevalence did not constitute a significant difference in terms of the age variable (p>0.05). The incidence of unilateral BMC was higher than bilateral BMC (p
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- 2022
20. Effects of local application of the ankaferd blood stopper on osseointegration in three different surface titanium implants
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Nedim Gunes, Muhammet Bahattin Bingül, Serkan Dundar, Mehmet Gul, Necmettin Karasu, Erhan Cahit Ozcan, Ali Bal, Alihan Bozoglan, Karasu, Necmettin, Dicle Üniversitesi, Diş Hekimliği Fakültesi, Ağız-Diş-Çene Hastalıkları ve Cerrahisi Bölümü, and Güneş, Nedim
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Titanium implant ,business.industry ,Biomechanic ,Dentistry ,chemistry.chemical_element ,Bone healing ,Bone tissue ,Article ,Osseointegration ,Implant surfaces ,medicine.anatomical_structure ,Bone to implant contact ,Otorhinolaryngology ,chemistry ,Osseintegration ,medicine ,Bone implant contact ,Ankaferd blood stopper ,business ,Bone regeneration ,General Dentistry ,Titanium - Abstract
Objective Researchs of the effects of ankaferd blood stopper (ABS) on bone healing metabolism have revealed that it affects bone regeneration positively. The exact mechanism by which this positive effect on bone tissue metabolism is not known. The aim of this study is to biomechanic and biochemical analysis of the effects of the local ABS application on osseointegration of 3 different surfaced titanium implants. Material & Methods Spraque dawley rats were divided machined surfaced (MS) (n = 10), sandblasted and large acid grid (SLA) (n = 10) and resorbable blast material (RBM) (n = 10) surfaced implants. ABS applied locally during the surgical application of the titanium implant before insertion in bone sockets. After 4 weeks experimental period the rats sacrificed and implants with surrounding bone tissues were removed to reverse torque analysis (Newton), blood samples collected to biochemical analysis (ALP, calcium, P) Results Biomechanic bone implant contact ratio detected higher in SLA surfaced implants compared with the RBM and controls (P < 0,05). Phosphor levels detected lower in RBM implant group compared with the controls and SLA (P < 0,05). Additionally; phosphor levels detected highly in controls compared with the RBM implants. Conclusion According the biomechanical parameters ABS may be more effective in SLA and RBM surfaced implants when locally applied.
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- 2021
21. Biomechanical and biochemical evaluation of the effect of systemic application of omeprazole on the osseointegration of titanium implants
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Serkan Dundar, Tuba Talo Yildirim, Izzet Acikan, Fatih Demirci, Erhan Cahit Ozcan, Nedim Gunes, Alihan Bozoglan, Samet Tekin, Dicle Üniversitesi, Diş Hekimliği Fakültesi, Ağız-Diş-Çene Hastalıkları ve Cerrahisi Bölümü, and Güneş, Nedim
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Proton pump inhibitors ,Dentistry ,Bone tissue ,Osseointegration ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Blood serum ,otorhinolaryngologic diseases ,Animals ,Medicine ,Omeprazole ,Titanium ,Creatinine ,Tibia ,business.industry ,Research ,RK1-715 ,Prostheses and Implants ,030206 dentistry ,Rats ,Bone implant connection ,medicine.anatomical_structure ,chemistry ,030220 oncology & carcinogenesis ,Urea ,Bone implant contact ,Alkaline phosphatase ,Analysis of variance ,business ,medicine.drug - Abstract
Background This study aimed to investigate the effects of systemic omeprazole treatment on the osseointegration of titanium implants. Material and methods After surgical insertion of titanium implants into the metaphyseal part of rats’ both right and left tibial bones, the animals were randomly divided into three equal groups: control (n = 8), omeprazole dosage-1 (n = 8) (OME-1), and omeprazole dosage-2 (n = 8) (OME-2) and totally 48 implants were surgically integrated. The rats in the control group received no treatment during the four-week postoperative experimental period. In the OME-1 and OME-2 groups, the rats received omeprazole in doses of 5 and 10 mg/kg, respectively, every 3 days for 4 weeks. After the experimental period, the rats were euthanized. One rat died in each group and the study was completed with seven rats in each group. Blood serum was collected for biochemical analysis, and the implants and surrounding bone tissue were used for biomechanical reverse-torque analysis. In the biomechanical analysis, implants that were not properly placed and were not osseointegrated were excluded from the evaluation. Results One-way analysis of variance and Tukey’s honestly significant difference test and Student’s t test were used for statistical analysis. The reverse-torque test (control (n = 9), OME-1 (N = 7), and OME-2 (n = 7)) analysis of biochemical parameters (alkaline phosphatase, calcium, phosphorus, aspartate aminotransferase, alanine amino transferase, urea, and creatinine) revealed no significant differences between the groups (control (n = 7), OME-1 (N = 7), and OME-2 (n = 7)) (P > 0.05). Conclusions Omeprazole had no biomechanical or biochemical effects on the osseointegration process of titanium implants.
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- 2021
22. Parapagus dicephalus dibrachus dipus: A case of conjoined twins.
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Karaer A, Tanrıkulu I, Güneş N, Cakır E, and Oztaş A
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In this report, we describe the case of a woman with a prenatal diagnosis of parapagus dicephalus dibrachus dipus conjoined twins at 14-15 weeks of gestation via two-dimensional ultrasonography. The parents elected to terminate the pregnancy and the patient delivered a 15-cm 130-g male fetus. There were two heads and necks which appeared grossly normal. The thoracic and abdominal cavities were shared. The fetus had four normal limbs. On internal examination, there were two separate structurally normal hearts. There were two larynges and four lungs. Two esophagi fused to enter a single stomach. The diaphragm was common and separated a single abdominal cavity. Distally, the alimentary system including the liver and gallbladder was single.
- Published
- 2009
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