Araştırmacılar(3)

• Akın, Muhammet
• Gülnahar, Yakup
• Taşkesen, Fatih

• ArticleAçık Erişim2026/r/ebyu/10154
  The Effect of Age and Tooth Loss on Articular Eminence Slope: An Orthopantomographic Study; [Yaş ve Diş Kaybının Eklem Eminens Eğimi Üzerindeki Etkisi: Ortopantomografik Bir Çalışma]

  Çelik, Fatih; Özsoy, Elif; Oktay, Fatih; Taşkesen, Fatih; Diyarbakır, Samih

  Objective: To investigate whether morphologic changes in the cranial component of the temporomandibular joint are associated with aging or tooth loss and, if so, whether articular eminence flattening is more associated with age or edentulism. Methods: Ortopantomographs of patients admitted to the hospital for routine dental treatment were retrospectively analyzed. Patients were divided into 4 groups according to their age and edentulous status. Group1: 49 patients aged 18-35 years with occlusal support, Group2: 46 patients aged 36-59 years with occlusal support, Group3: 43 patients over 60 years with occlusal support, and Group4: 42 patients over 60 years with lost occlusal support. The Frankfort horizontal plane and the articular eminence slope were drawn on the radiographs and the angle between them was measured and the differences between the groups were analyzed. Results: There was no significant correlation between age and flattening of the articular eminence angle (P=.645). A statistically highly significant difference was observed between Group 4 and all other groups in terms of articular eminence angles (P=.01). Conclusion: Since there was no significant correlation between age and articular eminence angle, and since the articular eminence angle was significantly different in Group 4, which consisted of completely edentulous patients, compared to all other groups, it was concluded that AEA may be related to edentulism rather than age. Study emphasizes the importance of occlusion by identifying tooth loss as a possible cause of the decrease in AE slope.

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• ArticleAçık Erişim2026/r/ebyu/10069
  Three-dimensional finite element analysis of temporomandibular joint stresses following botulinum toxin injection and occlusal splint therapy in bruxism

  Haşimoğlu, Elif; Balaban, Emre; Halat, İsmail Burak; Akın, Muhammet

  Background: Bruxism-related clenching can impose excessive mechanical loads on the temporomandibular joint (TMJ), particularly in the presence of anterior disc displacement (ADD). Understanding how different therapeutic strategies influence joint stress under these conditions can support exploratory, hypothesis-generating assessment of biomechanical unloading within patient-specific models. Therefore, this study aimed to evaluate TMJ stress distributions under normal and displaced disc conditions and to assess the biomechanical effects of simulated treatment strategies using a patient-specific finite element framework. Materials and methods: A patient-specific three-dimensional finite element model derived from clinically acquired computed tomography (CT) data was constructed to simulate TMJ biomechanics during clenching. Stress patterns were analyzed under three disc conditions: normal disc position, unilateral ADD, and bilateral ADD. Intervention scenarios included simulated reductions in masticatory muscle forces representing botulinum toxin Type-A (BoNT-A) therapy and occlusal splint therapy, applied individually and in combination. Peak von Mises stresses within the articular disc and joint structures were compared across all conditions. Results: ADD increased peak stresses within the articular disc and adjacent joint surfaces and shifted stress concentration toward the posterior region of the disc. Simulated reductions in muscle force resulted in progressive decreases in peak joint stresses as additional muscle groups were targeted, whereas splint therapy alone provided moderate stress reduction. The greatest biomechanical unloading was observed when occlusal splint therapy was combined with BoNT-A–related muscle force reduction. Notably, a strategy targeting the masseter and temporalis muscles combined with splint therapy produced lower peak disc stresses than a three-muscle reduction strategy without splint across all disc conditions. Conclusion: In this exploratory single-patient finite element model, ADD increased predicted TMJ stresses during clenching, whereas simulated muscle-force reduction and splint-related changes in occlusal load transmission reduced peak stress metrics, with the largest reductions observed in combined scenarios. These results are hypothesis-generating and intended for relative, within-model comparisons under stated assumptions rather than clinical treatment recommendations.

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• ArticleYalnız künye2024/r/ebyu/12870
  Comparing anxiety levels and patient comfort during single- and double-puncture arthrocentesis

  Taşkesen, Fatih; Cezairli, Burak

  Objective: To compare the comfort and anxiety levels of patients undergoing two different temporomandibular joint (TMJ) arthrocentesis techniques. Methods: Fifty female patients were randomly assigned into two groups of 25 based on the treatment modality: Group 1, single-puncture Type-1 arthrocentesis (SPA); Group 2, conventional double-puncture arthrocentesis (DPA). Preoperative and postoperative anxiety was scored with the State-Trait Anxiety Inventory-S (STAI-S) questionnaire. Blood pressure and heart rate were assessed preoperatively during the application of local anesthesia and at needle insertion into the joint cavity, the 5th and 10th minute of the procedure, and end of the procedure. Results: STAI-S scores were lower postoperative than preoperative in both groups. Heart rate and mean arterial pressure were highest during anesthesia and needle insertion (p < 0.005). Changes in heart rate, mean arterial pressure, and STAI-S scores were statistically similar between the groups. Conclusion: DPA and SPA were tolerated similarly by the patients.

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• ArticleYalnız künye2023/r/ebyu/13359
  Efficacy of prolotherapy and arthrocentesis in management of temporomandibular joint hypermobility

  Taşkesen, Fatih; Cezairli, Burak

  Objective: The aim of this study was to compare the efficacy of dextrose prolotherapy in conjunction with arthrocentesis and dextrose prolotherapy alone in the management of symptomatic TMJ hypermobility. Methods: Twenty-four patients suffering from TMJ symptomatic hypermobility received 10% dextrose injections for three sessions at four-week intervals. Twelve patients (P group) received prolotherapy alone; the other 12 (PA group) also underwent a single arthrocentesis session. Patients were evaluated for maximal incisal opening, maximal incisal opening without pain, pain at rest, pain during chewing function, TMJ sound, and locking episode frequency. Results: Pain scores were significantly reduced in both groups, and the locking episode frequency was decreased to a greater extent in the PA than the P group, at both the short and long terms. Conclusion: Prolotherapy is effective in the management of TMJ hypermobility. However, prolotherapy with arthrocentesis may be superior to prolotherapy alone in the management of TMJ hypermobility.

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• ArticleYayıncıda açık erişim2023/r/ebyu/13202
  Articaine versus lidocaine inferior alveolar nerve block in posterior mandible implant surgeries: a randomized controlled trial

  Gülnahar, Yakup; Alpan, Aysan Lektemur; Gülnahar, Evrem

  Background: The aim of this study is to compare the effects of %4 articaine and %2 lidocaine on inferior alveolar nerve block (IANB) for implant surgery in the posterior mandible. Material and Methods: The patients who have inserted implants in the posterior mandible were divided into 2 groups for IANB: lidocaine and articaine. VAS = visual analog scale, pain during surgery and injection, lip numbness time, mandibular canal-implant apex distance, age, gender, bone density, implant number, release incision, adjacent teeth, and duration of surgery were analyzed using t-test, Mann-Whitney U test, Spearman's coefficient, and, Pearson's chi-squared test. This trial followed the recommendations of the Consort Statement for reporting randomized controlled trials. Results: 577 patients were included and 1185 dental implants were analyzed. There was no significant difference between the two groups in terms of injection and surgery VAS values (p>0.05). The lip numbness time of lido-caine was 3.06±3.22min while articaine was found to be 2.96±3.09min (p>0.05). Mandibular canal-implant apex distance was found to be 2.28±0.75mm in the articaine and 2.45±0.86mm in the lidocaine group (p<0.05). Release incision was made more in the articaine group (51/252) than in the lidocaine group (40/325) (p<0.05). Conclusions: There was no difference between the %4 articaine and %2 lidocaine in terms of pain perception in posterior mandible implant applications. Both anesthetics provided adequate anesthesia for implant application.

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• ArticleYalnız künye2023/r/ebyu/13024
  The effectiveness of the masseteric nerve block compared with trigger point injections and dry needling in myofascial pain

  Taşkesen, Fatih; Cezairli, Burak

  Objective: To compare the efficacy of three different treatment methods in the management of myofascial pain: masseteric nerve block (MNB), trigger point injection with local anesthetic (LA), and dry needling (DN). Methods: Forty-five patients diagnosed with myofascial pain and trigger points in masseter muscles were treated with MNB (n = 15), DN (n = 15), and trigger point injection with LA (n = 15). Pain on palpation (PoP), pain on function (PoF), and maximum mouth opening (MMO) scores were measured and compared before the injections and all follow-ups after the injections. Results: MMO values were significantly increased in each group. The decrease in PoF values was statistically significant between the groups at 12 weeks (baseline time period). Discussion: Results of the present study indicate that MNB was not as effective as trigger point injection with local anesthetic or dry-needling in the management of masticatory myofascial pain.

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• ArticleYayıncıda açık erişim2022/r/ebyu/18573
  Dental Anxiety and Cardiovascular Response Changes In Multiple Implant Surgery - An Observational Study

  Gülnahar, Yakup; Küpeli, Ilke

  Objective: The aim of the study is to observe the level of anxiety and its relationship with cardiovascular changes in each implant in the patients with a high number of implants applied in a single session. Methods: In the prospective observational study, 100 patients, who had undergone 4 or more implant surgeries in the same session electively, were included in the study. Demographic data of each patient were recorded. After Corah Dental Anxiety Scale (C-DAS) was applied to the patients 10 minutes before the surgery, standard heart rate (HR), saturation, systolic (SAP), and diastolic (DAP) blood pressure monitorization were performed and the measured values were recorded during surgery and 30 minutes after the end of the procedure, and the surgery period were recorded. Results: It was determined that the mean age of the cases was 52.0 +/- 11.7 and the number of implants was 5.8 +/- 1.5, and the surgery periodwas 53.7 +/- 18 minutes. There was a positive correlation between HR and CDAS at all times and as the number of implants increased, SAP and DAP were added to this correlation (p <0.05). As the number of implants increased, HR, SAP and DAP also increased (p <0.05). As the surgery period increased, postoperative anxiety increased (p <0.05). Conclusion: It was found that anxiety levels of patients and accordingly the HR, SAP and DAP increased as the number of implants increased in the patients who underwent 4 or more implant surgeries in the same session.

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• ArticleYayıncıda açık erişim2022/r/ebyu/20475
  Erzincan’ da Maksillofasiyal Fraktür ve Tedavi Paternleri: Retrospektif Çalışma

  Dolğun, Ilke; Aksan, Tolga; Taskesen, Fatih; Gülnahar, Yakup; Aydinol, Mustafa

  Maksillofasiyal kırıkların epidemiyolojisi ülkeden ülkeye değişir. Nüfus yoğunluğu, yaşam tarzı, kültürel arka plan ve sosyoekonomik durum maksillofasiyal yaralanmaların prevalansını etkileyebilir. Bu nedenle bu çalışmada, yatan hastalarda maksillofasiyal kırıkların epidemiyolojisi ve tedavi planlarını daha iyi politika oluşturma stratejileri için faydalı olacak şekilde değerlendirdik. Bu retrospektif çalışmada, hastaneye yatış ve maksillofasiyal yaralanma nedeniyle opere edilen 50 hastanın tıbbi kayıtları değerlendirildi. Yaş, cinsiyet, kırık tipleri, nedenleri, tedavi planları ve tedavi sonrası komplikasyonlar kaydedildi. Hastaların çoğu erkekti (% 78). Olguların çoğu 21-30 yaş aralığındaydı. Kırıklara çoğunlukla düşme (% 40) ve kazalar (% 38), özellikle de motosiklet kazaları neden olmuştur ve en sık tutulum yeri, mandibula'nın parasemfiz bölgesidir. Tedavi planı olarak ORIF + IMF (% 63) tercih edildi. Çalışmamızın bulguları, maksillofasiyal kırıkların neden ve insidansının her ülkede farklı olduğu görüşünü desteklemektedir. Birçok gelişmiş ülkenin aksine, düşme ve trafik kazaları maksillofasiyal kırıkların en yaygın nedenidir.

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• ArticleYayıncıda açık erişim2022/r/ebyu/20322
  Temporomandibular Eklem Redüksiyonsuz Disk Deplasmanlarında Tip-1 Tek Girişli Artrosentez Çift Girişli Artrosenteze Göre Daha Başarılı mı?

  Cezairli, Burak; Taskesen, Fatih

  Amaç: Bu çalışmanın amacı temporomandibular ekleminde (TME) redüksiyonsuz disk deplasmanı olan hastalarda tip-1tek girişli ve çift girişli artrosentezin tedavi etkinliklerinin karşılaştırılmasıdır.Araçlar ve Yöntem: Bu randomize prospektif çalışmaya tip-1tek girişli veya çift girişli TME artrosentezi yapılan 36 hasta dahil edilmiştir. Fonksiyona bağlı ağrı, maksimum ağız açıklığı ve çiğneme etkinliği gibi çeşitli parametreler tedavi başlangıcında ve takip randevularında kaydedilmiştir. Ayrıca hastaların işleme toleransı, ihtiyaç duydukları analjezik miktarı, işlemin kolaylığı ve süresi de değerlendirilmiştir. Her bir zaman noktasında gruplar arasındaki fark ve altıncı ay ile başlangıç değerleri yüzdelik değişimleri Mann-Whitney U testi ile belirlendi. Değişkenlerin grup içi değerlendirilmesinde Wilcoxon testi kullanıldı. İstatistiksel anlamlılık düzeyi p &lt;0.05 olarak kabul edildi.Bulgular: Çalışmanın sonunda değerlendirme parametrelerindeki değişiklikler iki grup arasında istatistiksel olarak benzer bulunmuştur (p&gt;0.05). Bununla birlikte, çift girişli artrosentez tekniğinin süresi, tip-1tek girişli artrosentez tekniğine göre, anlamlı olarak daha kısa bulunmuştur (p˂0.0001). Tip-1tek girişli artrosentez tedavisinde tekniğin uygulama kolaylığı istatistiksel olarak anlamlı derecede yüksek bulunmuştur (p&lt;0.001). Çift girişli artrosentez uygulamasının hastalar tarafından tolere edilebilirliği tip-1 tek girişli artrosentez uygulamasına göre ilk gün ve ilk hafta kontrollerinde daha yüksek bulunmuş olsa da ilk ay sonunda iki tekniğin de hastalar tarafından tolere edilebilirliği benzer bulunmuştur.Sonuç: Tip-1 tek girişli ve çift girişli artrosentez tedavilerinin etkinlikleri temporomandibular eklem redüksiyonsuz disk deplasmanında benzerdir. Tip-1 tek girişli artrosentez tekniği, düşük morbidite ve uygulama kolaylığı gibi avantajları nedeni ile temporomandibular eklemin redüksiyonsuz disk deplasmanı vakalarında ilk tedavi yöntemi olarak düşünülebilir.

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• ArticleYayıncıda açık erişim2021/r/ebyu/20834
  Farklı temporomandibular eklem düzensizliğine sahip hastalarda uygulanan artrosentez işlemlerinin sayılarının retrospektif olarak incelenmesi

  Cezairli, Burak; Taskesen, Fatih

  Amaç: Bu çalışmanın amacı farklı temporomandibular eklem düzensizliklerine sahip bireylerde uygulanan artrosentez sayılarınınve seanslar arası sürelerin incelenerek, eklem hastalığı tipine göre uygulanacak tedavi protokolü hakkında öngörüsağlayabilmektir.Gereç ve Yöntem: Bu retrospektif çalışma, “Temporomandibular Düzensizlikler için Tanı Kriterleri” sınıflamasına göre,redüksiyonlu disk deplasmanı, redüksiyonsuz disk deplasmanı ve dejeneratif eklem hastalığı tanısı konulan ve kliniğimizdeartrosentez tedavisi gören 160 hastaya uygulanan artrosentez sayısını ve sıklığını incelemektedir. İki yıllık tedavi ve takip süresiboyunca hastalara uygulanan artrosentez sayıları ve birden fazla artrosentez uygulanan hastalarda her seans arası sürelerhesaplanarak analiz edilmiştir.Bulgular: Redüksiyonlu disk deplasmanı, redüksiyonsuz disk deplasmanı ve dejeneratif eklem hastalığı gruplarında medyanseans sayıları karşılaştırıldığında gruplar arasında istatistiksel olarak anlamlı farklılığa rastlanıldı (p<0.001). Birinci ve ikinciseanslar arasındaki süre hem redüksiyonsuz disk deplasmanı hem de dejeneratif eklem hastalığı gruplarında benzer iken (p =0.386), ikinci ve üçüncü seanslar arasındaki süre redüksiyonsuz disk deplasmanı grubuna göre dejeneratif eklem hastalığıgrubunda anlamlı olarak daha uzun bulundu (p = 0.002).Sonuç: Temporomandibular eklem düzensizliklerinin seviyesi ilerledikçe ihtiyaç duyulan artrosentez sayısı artmaktadır. Seanslararası süre ise temporomandibular eklem düzensizliğinin tipine göre değişebilmektedir.

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