Yazar "Duman Ş.B." seçeneğine göre listele

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    Öğe
    Retrospectively comparison of nasal septum and maxillary sinus radiological findings in cone beam computed tomography and panoramic radiography
    (Nobelmedicus, 2021) Dedeoğlu N.; Arıkan B.; Duman Ş.B.
    Objective: The aim of this study is to compare panoramic radiography and cone beam computed tomography (CBCT) for visibility of maxillary sinus retention cyst, septa, Haller cell and nasal septum deviation. Material and Method: A total of 588 maxillary sinus and 294 nasal septum of 294 patients with both panoramic radiography and CBCT images were evaluated. The presence of Haller cell, maxillary sinus septa, retention cyst and nasal septum deviation were evaluated first in CBCT images and then panoramic radiography and recorded. With the data obtained, the two methods were compared by using Chi-square test. Results: Statistically significant difference was found when the frequency of Haller cell, maxillary sinus septa and nasal septum deviation seen on panoramic radiography was compared with CBCT (p<0.05). No statistical difference was found when the frequency of retention cyst seen on panoramic radiography was compared with CBCT (p>0.05). Conclusion: While panoramic radiography was found to be insufficient in the radiological evaluation of Haller cell, maxillary sinus septum and nasal septal deviation, it was found to be close to CBCT in the evaluation of retention cyst. © 2021, Nobelmedicus. All rights reserved.
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    Öğe
    Root canal anatomy of maxillary first molars in a Turkish population using cone-beam computed tomography
    (Mashhad University of Medical Sciences, 2023) Demirtaş Ö.; Duman Ş.B.
    Objective: This study aimed to assess canal morphology of maxillary first molars by analyzing cone beam computed tomography (CBCT) images. Methods: A total of 324 maxillary first molars were collected from the Turkish population and scanned using the in vitro CBCT method. The number of roots and canals, root canal configuration, canal shape, the presence of a C-shaped canal, apical delta, and lateral canal, as well as the distance between radiographic and anatomic apices were examined. Results: The majority of the samples (97.9%) had 3 separate roots; while the remaining teeth had two or four roots (1.5% and 0.6% respectively). CBCT results showed 2, 3, 4, and 5 root canals in 0.3%, 47.9%, 50.3% and 1.5% of the teeth, respectively. All distobuccal (DB) and palatal (P) roots had one canal. The mesiobuccal (MB) roots frequently showed a second mesiobuccal canal (MB2). The most common canal morphology in the MB roots was type I (33.1%), followed by type II and type III (29.0% and 9.8%, respectively). The P and DB roots commonly showed a type I canal configuration. C-shaped canals were rare. The mean distances between radiographic and anatomic apices in MB, DB, and P roots were 0.77 ± 0.45, 1.68 ± 0.9 and 0.91 ± 0.46 mm, respectively. Conclusions: The MB roots of maxillary first molars showed greater variations in their canal anatomy than other roots. These anatomical differences, potentially attributable to ethnic variations, should be considered when performing surgical or nonsurgical root canal treatments on maxillary molars. © 2023 Mashhad University of Medical Sciences.