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Öğe Ağız ve Dil Kanserleri ile İlgili İnternet Medyasında Yer Alan Haberler ve Toplum Üzerindeki Etkileri: Türkiye’den Bir Google Trends Çalışması(2021) Demirel, OğuzhanGiriş ve Amaç: Çalışmada ağız ve dil kanserleri ile ilgili, internet haber sitelerinde yer alan habersayıları ile ‘ağız kanseri’ ve ‘dil kanseri’ terimlerinin google arama hacimleri arasındaki ilişkinindeğerlendirilmesi; ayrıca, haber içeriklerinin belirlenmesi amaçlanmıştır.Yöntem ve Gereçler: Türkiye’ de en çok okunan 5 haber sitesi belirlenerek, bu haber sitelerinde yeralan ağız kanseri ve dil kanseri haberleri ile haberlerin tarihleri kaydedildi. Google Trends uygulamasıkullanılarak, internet basınında yer alan ilk haber tarihi ile Kasım 2019 tarihleri arasında Türkiye’ deağız kanseri ve dil kanseri terimleri için arama hacim indeksleri belirlendi. Aylık-yıllık ortalama aramahacim indekslerinin, haber sayıları ile ilişkileri istatistiksel olarak değerlendirildi. Ayrıca haber içerikleride kaydedildi.Bulgular: Ağız kanserleri ile ilgili toplam 92 habere ulaşıldı. Aylık-yıllık haber sayıları ile ortalamaarama hacim indeksleri arasında anlamlı ilişki tespit edilmedi. Ağız kanseri belirtileri en sık gözlenenhaber içeriğiydi. Dil kanserleri ile ilgili toplam 45 haber tanımlandı ve haberlerin büyük kısmı dil kanserivakalarıydı. Yıllık ortalama arama hacim indeksleri ile yıllık haber sayıları arasında pozitif yönde güçlükorelasyon tespit edildi. Tartışma ve Sonuç: Dil kanseri arama hacim indeksi ile dil kanseri haber sayıları arasında ilişkimevcuttur. Medyada orofaringeal kanserler hakkında haber sayılarının artmasıyla, toplumun bukonudaki ilgi ve bilgi düzeyinde artış sağlanabilir.Öğe Alveol Kret Yüksekliği ve Maksiller Sinüs Mukozası: Konik Işınlı Bilgisayarlı Tomografi Değerlendirmesi(2020) Demirel, Oğuzhan; Akbulut, AslıhanGirişve Amaç: Dental implantların uygulanabilmesi için birincil gereklilik yeterli kemik miktarıdır. Maksiller posterior bölgede alveolar kretin atrofisi maksiller sinüs augmentasyonunu gerekli kılabilir. Sinüs augmentasyonu sırasında maksiller sinüs anatomisine ve patolojilerine bağlı olarak komplikasyonlar gözlenebilir. Bu çalışmanın amacı alveolar kret yüksekliği (AKY) ve maksiller sinüs mukozal değişiklikleri (SMD) arasındaki ilişkiyi değerlendirmektir.Yöntem ve Gereçler: Çalışmaya, implant planlaması amacıyla konik ışınlı bilgisayarlı tomografi (KIBT) görüntüsü alınmış 60 hasta dahil edildi. KIBT görüntüleri üzerinde ölçüm yapılacak kesitleri belirlemek amacıyla panoramik rekonstrüksiyonlar yapıldı vecross-sectional kesitler üzerinde AKY ölçüldü. Maksiller sinüs mukozasındaki herhangi bir değişiklik kaydedildi.Bulgular: Değerlendirilen 60 hastanın % 63.3’ ünde SMD gözlendi. AKY değerleri, SMD olmayan ve olan hastalarda sırasıyla; birinci premolar için 16.78 ve 17.39 mm., ikinci premolar için 8.92 ve 7.83 mm., birinci molar için 7.07 ve 5.37 mm., ikinci molar için 10.05 ve 8.5 mm. olarak ölçüldü. Birinci molar bölgesinde ortalama AKY değerleri SMD olan hastalarda daha düşük bulundu (p<0.05).Tartışma ve Sonuç: Molar bölgede ortalama alveolar kret yüksekliğiile sinüs mukozal değişiklikleri arasında ilişki vardır. Maksiller sinüs mukozasında değişimler izlenen hastaların molar bölgede ortalama kret yükseklikleri, mukozal değişiklik olmayan hastalardan daha düşüktür. Molar bölgede sinüs augmentasyonu işlemindemaksiller sinüs mukozası dikkat gerektirmektedir.Öğe An investigation into the total mandibular length and its potential correlation with the intraoral forces(Elsevier GmbH, 2022) Karataban, Pınar; Demirel, Oğuzhan; Ortug, GurselObjectives: Intraoral forces can be affected by several factors, including craniofacial dimensions, muscles, teeth status, and age. This study aims to reveal a possible correlation between maximum vertical interocclusal bite and masticatory forces and the total mandible length. Materials and methods: The law of the lever was used to elucidate the mastication function by recording the occlusion and phases of mastication movements. A total of 115 people, 18 females, and 97 males, participated in the study. The midpoints of Gnathion (Gn), and Condyle (Co) were selected on the digital radiographs, and line connecting these points were used. Bite, and masticatory forces were measured in the anterior (intercanine) and posterior (premolar-molar) segments. Pearson correlation and multiple regression analyses were performed to evaluate the relationship between mandibular measurements and masticatory force. Results: Total mandible length varied between 11.0 and 13.0 cm in females and between 10.3 and 13.9 cm in males. The bite force of the anterior segment was found to be 34.2–52.1 kg in females and 27.0–61.2 kg in males, whereas posterior segment masticatory forces were determined between 45.0 and 69.0 kg in females and 36.8–93.6 kg in males. A weak positive correlation was found between the posterior segment and total mandibular length (p = 0.016) in the study. However, no correlation was found between the anterior segment and total mandibular length (p = 0.733). Conclusion: The results of the current study point to the fact that, as the total length of the mandible increase, the posterior segment masticatory forces increase as well. However, this relationship is relatively weak. © 2022Öğe Investigation of The Effect of “Mouth Cancer AwarenessMonth” Events On Society with Google Trends®(2021) Demirel, Oğuzhan; Akbulut, AslıhanBackground: To create awareness about oral cancers, variousevents are being organized such as “oral cancer awarenessmonth”. Google Trends® is an application which is used todetermine the relative frequency of a search term and is used fordifferent purposes in the field of medicine, recently. The aim of thisstudy is to determine the research popularity of terms about oralcancers using Google Trends® and to investigate the relationshipbetween various awareness events. Methods: Search Volume Indexes for terms “oral cancer” and“mouth cancer” for the USA, United Kingdom, and worldwide wereobtained from Google Trends®. Also, for Turkey “ağız kanseri”, “dilkanseri”, “dudak kanseri” and “damak kanseri” terms were used.Average search volume indexes of all terms for April, Septemberand November, which are declared as oral cancer awarenessmonths by different societies, were calculated. Results: For terms, “mouth cancer” and “oral cancer”, Novemberaverages in the United Kingdom and April averages in the USAwere higher compared to all months (p<0.05). Averages for“mouth cancer” and “oral cancer” were higher on November andApril, respectively for worldwide (p<0.05). No statisticallysignificant relationship was observed between November, April,September averages and all months averages for “ağız kanseri”,“dil kanseri”, “dudak kanseri” and “damak kanseri” terms. Conclusion: Awareness months are effective in the context ofsearch volume index in United Kingdom, USA, and worldwide. InTurkey, awareness months may be organized or already existingevents may be improved.Öğe Investigation of the prevalence and main features of skull-base anomalies and characteristics of the sphenoid sinus using cone-beam computed tomography(Korean Acad Oral & Maxillofacial Surgery, 2022) Akbulut, Aslıhan; Demirel, Oğuzhan; Orhan, KaanObjectives: This study aimed to define the prevalence and characteristics of skull base anomalies and the features of sphenoid sinus pneumatization Materials and Methods: Five hundred cone-beam computed tomography scans were evaluated retrospectively for the presence of fossa navicularis magna (FNM), canalis basilaris medianus (CBM), sphenoid emissary foramen (SEF), and/or Onodi cells (OC). Patterns of the SSP and sphenoid sinus Results: The prevalence of FNM, CBM, SEF, and OC was 26.0%, 22.4%, 47.4%, and 18.4%, respectively. Two hundred sixty-two (52.4%) sellartype SSP were defined, followed by post-sellar 191 (38.2%), pre-sellar 31 (6.2%), and conchal 16 (3.2%) types. The frequency of SSMD less than 1 mm, 1-3 mm, and greater than 3 mm was 40.6%, 38.4%, and 21.0%, respectively. An SEF was detected more frequently in females, while SSMD greater than 3 mm was more frequent in males. An FNM was more prevalent in the 18-29 and 30-39 age groups and SEF was significantly less frequent in patients over 60 years of age compared to other age groups. A sinus mucosa larger than 3 mm was more common in the younger than 18 year group. The frequency of post-sellar-type pneumatization was lower in patients younger than 18 years. Conclusion: Skull-base anomalies are common and may be detected incidentally during imaging procedures. The sphenoid sinus, its variations, and pneumatization patterns should also be taken into consideration in imaging procedures performed for various purposes.Öğe Retromolar canals and mandibular third molar position: Is there a possible connection?(Wolters Kluwer Medknow Publications, 2022) Demirel, Oğuzhan; Akbulut, AslıhanIntroduction: The retromolar canal (RMC) is an anatomical variation of the posterior part of the mandibular canal. It is thought that this variation is related to histological vestiges of the gubernacular canal and RMC presence may be associated with mandibular third molar (MTM) malposition. This study aims to investigate the relationship between MTM position and RMC existence. Material and Methods: Patients who had undergone cone-beam computed tomography examination for various purposes were included in the study. All of the patients had unilateral or bilateral MTM teeth. MTM impaction patterns were classified according to Winter and Pell-Gregory classifications. RMC existence, type, retromolar foramen (RMF) position, RMF dimensions, and distance from RMF to second and third molars were recorded. Results: Three hundred and forty-six retromolar areas with MTM of 244 patients were evaluated. RMCs were present in 11.5% of the patients. No statistically significant relationship between RMC and MTM impaction patterns was observed. A1-type RMC was found to be the most prevalent. The mean distance from RMF to the third molar was 6.09 +/- 4.20 mm and was found to be higher in male patients. The mean distance from RMF to the second molar was 15.28 +/- 4.73 mm. The average dimensions of the RMF were 1.4 +/- 0.47 mm. Discussion and Conclusion: RMC is a relatively common anatomical variation of the mandibular canal. Although no correlation was observed between MTM impaction pattern and RMC existence, further research including more samples may be helpful to explain a possible correlation.
