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  • Küçük Resim
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    Assessment of apical periodontitis in relation to quality of root canal fillings and coronal restorations in a Turkish subpopulation: A retrospective cone-beam computed tomography study
    (Wolters Kluwer Medknow Publications, 2020) Falakaloğlu, Seda; Belgin, Ceren Aktuna; Uygun, Latife Altınok; Adıgüzel, Özkan
    Introduction: This study aims to investigate the prevalence of apical periodontitis (AP) and relate the quality of root canal fillings (RCFs) and coronal restorations (CRs) with using cone-beam computed tomography (CBCT) in a Turkish subpopulation. Materials and Methods: A total of 824 CBCT scans were performed at the Dicle University Faculty of Dentistry between January 2015 and December 2017. The age, sex, root canal-Treated teeth of each patient, quality of RCF and CR, and CBCT periapical index (CBCTPAI) scores of teeth were calculated and recorded. Data were statistically analyzed. Results: Among 333 patients, 152 (45.6%) patients were male and 181 (54.3%) were female. The mean age was 30.1 ± 5.3 years. The total number of endodontically treated teeth was 550, and 76.2% had AP. In 238 (43.3%) teeth with inadequate RCF, AP rate was 89.4%. There was a significant correlation between the density of the RCF and AP (P < 0.00). Inadequate restorations accounted for 177 teeth (32.2%), of which 10.1% (18) of the teeth were CBCTPAI 1. Of the 41 teeth with missing CR, 39 (95.1%) teeth showed signs of AP. A significant difference was found between CR and AP (P = 0.00). Conclusions: The RCF quality, adequate CR, and the type of CR are related to AP. .
  • Küçük Resim
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    Maksiller sinüs hacminin farklı cinsiyet ve yaş gruplarına göre üç boyutlu olarak değerlendirilmesi
    (Dicle Üniversitesi, Diş Hekimliği Fakültesi, 2017) Belgin, Ceren Aktuna; Çolak, Mehmet
    Maksiller sinüs, diş hekimliğinin birçok branşında yapılan tedavilerde çalışma sahasına giren önemli bir anatomik oluşumdur. Maksiller sinüs hacminin ölçülmesi için kadavralar, stereolojik yöntemler, iki boyutlu konvansiyonel radyografiler, bilgisayarlı tomografi, manyetik rezonans görüntüleme gibi çeşitli yöntemler kullanılmıştır. Biyomedikal teknolojinin ilerlemesiyle karmaşık yapıdaki doku ve organların çevredeki anatomik oluşumlardan ayrılarak tek başına incelenmesini sağlayan, incelenen her bir alanı ayrı ayrı renklendirerek hacim–alan ölçümlerinin yapılmasına olanak veren, üç boyutlu modelleme yaparak preoperatif tedavi planlamasında hekimlere kolaylık sağlayan yazılımlar geliştirilmiştir. Çalışmamızın amacı, maksiller sinüs hacminin yaşa ve cinsiyete göre değişiminin bu üç boyutlu modelleme yapan yazılımlardan biri olan MIMICS 19.0 (Materialise's Interactive Medical Image Control System), (Materialise HQ Technologielaan, Leuven, Belçika) ile değerlendirilmesidir. Dicle Üniversitesi Diş Hekimliği Fakültesi Ağız, Diş ve Çene Radyolojisi Anabilim Dalı arşivinin retrospektif incelenmesiyle belirlenen 200 hasta ile çalışma grubu oluşturulmuştur. Hastalar 18-24, 25-34, 35-44, 45-54, 55 yaş ve üstü olmak üzere beş gruba ve cinsiyete göre iki gruba ayrılmıştır. Hastaların konik ışınlı bilgisayarlı tomografi (KIBT) görüntüleri MIMICS programına aktarılarak maksiller sinüs hacminin ölçümü yapılmıştır. İstatistiksel analiz için SPSS (Statistical Package for Social Sciences, versiyon 21) kullanılmıştır. Çalışmamızdan elde edilen bulgulara göre sağ ve sol maksiller sinüs hacmi arasında istatistiksel olarak anlamlı bir fark olmadığı, erkeklerdeki maksiller sinüs hacminin ise kadınlara göre anlamlı derecede yüksek olduğu görülmüştür. Araştırmamızın bir diğer bulgusu ise yaş artışı ile birlikte maksiller sinüs hacminde azalma meydana gelmesidir. Özellikle 18-24 yaş grubundaki bireylerde erkeklerdeki sinüs hacminin kadınlara göre istatistiksel olarak anlamlı derece yüksek olduğu görülmüştür. Son yıllarda geliştirilen MIMICS programı ile maksiller sinüs yapısının etkin bir şekilde değerlendirilebildiği ve sinüs hacminin gerçeğe yakın bir değerde ölçülebildiği görülmüştür.
  • Küçük Resim
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    Maxillary cortical bone thickness in a south- eastern anatolian population: A cone-beam computed tomography study
    (International Scientific Information, Inc., 2017) Adıgüzel, Özkan; Belgin, Ceren Aktuna; Falakaloğlu, Seda; Cangül, Suzan; Akkuş, Zeki
    Background: The aim of this study was to measure the distance between the maxillary premolar and molar teeth apices to the buccal cortical bone and evaluate differences in gender and age group, using cone beam computed tomography (CBCT). Material/Methods: This retrospective study comprised of 451 premolar and molar teeth of one hundred and thirteen patients who were admitted to Dicle University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology for different reasons. Data were analyzed using Student’s t-tests and Tukey HSD tests. Results: There was significant difference in buccal bone thickness by gender (p<0.05). The thinnest point of the maxillary buccal bone was measured in women as 2.11 mm and in men as 2.02 mm in the first premolar teeth. The thickest point of maxillary buccal bone was measured in women as 9.87 mm and in men 10.71 mm palatinal root of the first molar. A comparison of buccal bone thickness between age showed a statistically significant difference at the distobuccal and palatinal roots of the first molar, at the mesiobuccal root of the second molar (p<0.05). Conclusions: The measurements of maxillar buccal bone thickness using CBCT for various dental procedures especially in endodontic surgery, orthodontic mini implant treatment, dental implant procedures, and healing after tooth extraction that are important knowledge.
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    Öğe
    Three-dimensional evaluation of maxillary sinus volume in different age and sex groups using CBCT
    (Springer, 2019) Belgin, Ceren Aktuna; Colak, Mehmet; Adiguzel, Ozkan; Akkus, Zeki; Orhan, Kaan
    Aim Sinus maxillaris is an important anatomical formation in many branches of dentistry due to its proximity to the field of work. Various methods have been used in literature to measure the maxillary sinus volume (MSV) such as cadavers, stereology, two-dimensional conventional radiographs, computed tomography (CT), magnetic resonance imaging (MRI). The aim of this study is to evaluate the change of maxillary sinus volume according to age and gender with MIMICS 19.0 (Materialise HQ Technologielaan, Leuven, Belgium) which is one of three-dimensional modeling software. Materials and methods This study was performed in 200 patients selected by a retrospective review of the archives of the Dicle University, Faculty of Dentistry, Department of Oral and Maxillofacial Radiology. Patients were divided into five age groups (18-24 years, 25-34 years, 35-44 years, 45-54 years, and >= 55 years) and by sex. Cone-beam computed tomography (CBCT) images of the patients were transferred to the MIMICS software and the MSV was measured. All statistical analyses were performed using the SPSS (Statistical Package for Social Sciences, version 21) software. Results There was no statistically significant difference between the right and left maxillary sinus volume according to the findings obtained from our study, and maxillary sinus volume in males was found to be significantly higher than that of females. Another finding of our study is that the maxillary sinus volume decreases with age increase. Especially it was also found that the sinus volume in males in the 18-24 age group was statistically significantly higher than females. Conclusion Consequently, maxillary sinus volume measurements can be made on CT, CBCT, MRI scans using reconstruction software.