Ortodonti Ana Bilim Dalı Koleksiyonu
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Yayın Deep-learning model for assessing difficulty in localizing impacted canines(Elsevier, 2024) Özcan, Mustafa; Erdem, Buket; Turan, Begüm; Tokatlı, Nazlı; Şar, Çağla; Özdemir, FulyaAIM or PURPOSE The aim of this study is to examine if an artificial intelligence algorithm can be used for identifying the bucco-palatinal position of the maxillary impacted canine from the panoramic X-rays. MATERIALS and METHOD A total of 810 panoramic x-rays were obtained from the archive of University, Faculty of Dentistry, Department of Orthodontics. X-rays included cases with unilateral/bilaterally impacted canines. We used a Convolutional Neural Network (CNN) to forecast where the impacted canines crown would be situated. CNNs excel at classifying images as they can autonomously and flexibly grasp hierarchies of features, from input images. The implementation of the proposed deep learning model has been done using the Python programming language and libraries (TensorFlow and Numpy). The dataset that was used to train the proposed model categorized into buccal, middle, and palatinal positioned samples. These samples are mainly 2D panoramic X-rays combined with clinical information about the location of the canine. The expectation from the model is to determine the location of the crown of the maxillary-impacted canine. The model's prediction of the impacted canine's location was assessed in bucco-palatinal directions. RESULTS The proposed deep learning model predicts the position of the impacted canine in the buccal, middle, or palatinal position with 68% accuracy. CONCLUSION(S) This multidisciplinary research study developed a deep learning model to automate the detection and positioning of impacted canines on panoramic dental X-rays. Lastly, further research is required to refine the model for clinical implementation and to explore its integration into routine orthodontic practiceYayın Does vertical pattern affect lip strain in open-bite patients?: A cephalometric study(Adıyaman University, 2024) Başal, Ece; Acar, Yasemin Bahar; Erdem, BuketAim: To examine effect of skeletal pattern on lip strain in open-bite, in individuals with normal and increased vertical pattern. Materials and Methods: 56 open bite patients with Normovergent (NG) and Hyperdivergent (HG) vertical patterns (Mean age: 16.57 years) underwent cephalometric analysis. Soft tissue labial, hard tissue, and dental inclinations were measured. Statistical analyses were performed using Kolmogorov Smirnov, Mann Whitney-U, and independent sample t-tests; Pearson and Spearman correlation analyses; and Linear regression analysis. Results: In HG, each degree of SN-UOP increase caused 0.371 mm increase in lower lip strain. While in NG, upper lip strain was associated with IMPA and SNB (each degree caused 0.14 mm increase and 0.207 mm decrease respectively). Conclusion: IMPA, SN-UOP and SNB were found to be the determinants of lip strain. Dental, vertical, and sagittal variables showed association with lower face.Yayın Does facial growth pattern affect the perception of lower facial asymmetry?(The EH Angle Education and Research Foundation Inc., 2024) Basal, Ece; Çevik, İsmail; Acar, Yasemin Bahar; Özdemir, FulyaObjectives To investigate the influence of vertical facial type on esthetic perception of lower facial asymmetry as evaluated by orthodontists, dentists, and laypeople. Materials and Methods Three adult females were selected with normal growth patterns (NGP), vertical growth patterns (VGP), and horizontal growth patterns (HGP). Frontal photographs were made symmetric and digitally altered, rotating the lower facial third clockwise, ranging from 0° to 6° in 1° increments. A web-based survey was designed with 24 images (eight images for each model) in random order. Each image was rated using a scale ranging from 0 (unattractive) to 10 (the most attractive) by 75 orthodontists, 73 dentists, and 78 laypeople. Kruskal-Wallis test was used to determine whether differences among groups were significant. Pairwise comparisons were made with Mann-Whitney U test. The significance level was set at P = .05. Results In NGP, orthodontists and dentists could recognize slighter deviations (2°), while deviations in VGP and HGP under 3° were not recognized by all groups. Severe deviations (≥4°) were distinguished better in HGP by orthodontists and laypeople. In VGP and NGP, there was no significant difference over 4°. Conclusions Growth pattern has a significant influence on perception of lower facial asymmetry. Less severe asymmetry can be detected better in NGP. In severe degrees, increments of asymmetry can be perceived more in HGP by orthodontists and laypeople.Yayın Ortodontide model ve fotoğraf analizi(Türkiye Klinikleri, 2023) Erdem, Buket; Şar, Çağla; Sayınsu, KorkmazOrtodontide teşhis ve tedavi planlamasında modeller ve dental fotoğrafların önemi yadsınamaz. Bu yöntemler; dişler, kemikler ve yumuşak dokular hakkında kapsamlı bilgiler verebildiği gibi, aynı zamanda tüm kayıt yöntemleri arasında en noninvaziv yöntem olmaları yönünden de değerlidirler. Günümüzde üç boyutlu teknolojilerin gelişmesiyle birlikte her alanda olduğu gibi ortodontide de hem bu kayıt yöntemlerinde hem de analiz yöntemlerinde önemli gelişmeler yaşanmaktadır. Bu derlemenin amacı, günümüz ortodontisinde kullanılan diyagnoz yöntemlerinden model ve fotoğraf analiz yöntemlerini ve dijital teknolojideki gelişmelerin bu analizlere katkılarını incelemektir.Yayın Şeffaf apareyler ile tanı ve tedavi planı(Türkiye Klinikleri, 2023) Özdemir, Fulya; Tozlu, Murat; Sayınsu, KorkmazOrtodontide muayene, tanı ve tedavi planı oluşturmak uzmanlık becerilerinin en önemlileridir. Kişiye özel doğru tedaviyi planlamak için tedavi mekanikleri bilgisi ötesinde hastanın özgün anatomi ve fizyolojisini iyi incelemek ve buradaki bulgulardan yola çıkarak tedavi bilgilerimizi özelleştirerek kullanmak esastır. Şeffaf plaklarla yapılacak tedavilerde rutin ortodonti muayenesi sırasında dikkat edilmesi gereken ve bu teknikle düzeltilmesi zor ya da olanaksız olan problemlerin belirlenmesi önemlidir. Şeffaf plaklarla yapılacak tedavilerde, tedavi planı baştan sonra tüm diş hareketlerinin tam olarak belirlenmesi demektir. Ortodonti uzmanı karşı dişlerin ilişkilerinin öngörüldüğü gibi gerçekleşebilmesi için uygun ankraj planlaması yapmalıdır.Yayın Retrospective 3-dimensional evaluation of skeletal and dental structures following treatment with hybrid hyrax-mentoplate with class III elastics in class III patients with vertical growth pattern: A pilot study(Marmara University, 2023) Yıldırım, Gamze; Özbilen, Elvan Önem; Özdemir, FulyaObjective: The aim of the present study is to evaluate the skeletal and dental changes three-dimensionally in patients with skeletal Class III malocclusion and vertical growth pattern treated with hybrid hyrax-mentoplate and Class III elastic combination. Materials and Methods: In this retrospective study, conebeam computed tomography images of 6 patients (5 females and 1 male; Mean age: 11.9±0.9 years) who had undergone an orthopedic treatment with hybrid hyrax-mentoplate and Class III elastic combination were retrieved from the archive of Marmara University, Department of Orthodontics. Initial and post-protraction skeletal and dental parameters were investigated by using 3D SLICER version 5.0.2 software (www.slicer.org). Statistical significance was set at p<0.05. Results: Sagittal skeletal evaluation showed statistically significant increases of 2.31° in SNA, and 2.8° in ANB (p<0.05), with no significant change in SNB (p>0.05). There were no significant changes in vertical skeletal parameters except significant decreases in FH-OP and SN-OP angles of 5.28° and 5.18°, respectively. In terms of dental changes, while a significant decrease was found in LI-OP angle (8.82°), significant increases in LI-MP angle and in overjet change were found (5.27°, 3.75 mm, respectively) (p<0.05). There were no significant changes in upper incisor parameters, UI-LI angle, and overbite (p>0.05). A significant increase was found in both SN-16M and SN-26M (5.79 mm, 4.10 mm, respectively) (p<0.05), while a significant decrease was observed in MP-36M and MP-46M measurements (1.62 mm, 2.29 mm, respectively) (p<0.05). Conclusion: With the use of hybrid hyrax-mentoplate and Class III elastic combination, orthopedic sagittal correction can be achieved in patients presenting high angle skeletal Class III without causing any changes in facial height, and the slope of mandibular and palatal planes.Yayın Orthodontics in the era of social media: An interview with orthodontic journal editors(Elsevier, 2023) Al-Moghrabi, Dalya; Cobourne, Martyn T.; Fleming, Padhraig S.; Kravitz, Neal D.; Krishnan, Vinod; Liou, Eric Jein-Wein; Michelotti, Ambra; Nanda, Ravindra; Şar, Çağla; Vaid, Nikhilesh R.The current paper presents a series of interviews conducted with editors of prominent orthodontic journals, with a specific focus on the influence of social media on orthodontics as a profession. The interviews revolve around the impact of social media on various aspects, including orthodontic patients, clinicians, education, academia and research. The aim is to explore the effective utilization of social media as a means to advance the profession and discuss its potentials and pitfalls.Yayın Pekiştirme ve nüks yönetimi için klinik rehber(Quintessence Yayıncılık, 2021) Akyalçın, Sercan; Şar, Çağla; Tosun, Yahya[No Abstract Available]Yayın Mini-vida ankrajı: klinik bir güncelleme(Quintessence Yayıncılık, 2021) Şar, Çağla; Akyalçın, Sercan; Tosun, Yahya[No Abstract Available]
