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Öğe Bullying in individuals with cleft lip and palate: A Twitter analysis(WILEY, 2021) Korkmaz, Yasemin Nur; Arslan, Semiha; Büyük, Süleyman KutlamışObjectives: This study aimed to evaluate bullying in individuals with cleft lip and/or palate (CLP) using Twitter analysis. Materials and methods: By using Twitter's advanced search feature, the four selected keywords; bully, bullying, bullied and teased were searched along with the terms cleft lip and palate, cleft lip and cleft palate, respectively. A total of 1010 tweets meeting the criteria were selected. The data were evaluated qualitatively using thematic analysis and the determination of the themes were based on this analysis. Results: Most of the tweets were posted by a layperson (80.8%), while most of the tweets were categorised in the theme criticism of bullying (36%). The tweets were distributed according to their uploader status as irrelevant individuals (60.6%), CLP subjects (26.9%), family of CLP subjects' (12.5%). Of the 1010 tweets evaluated, 707 were identified as negative, while 90 were identified as neutral and 213 were identified as positive. No significant differences were detected in retweet and like numbers between negative, neutral and positive comments (P > .05). Conclusions: Twitter is an important platform, in which the bullying victims with CLP and their families feel free to share their personal experiences of being bullied and how they feel about it, while the others are standing against bullying and promoting social support for these individuals.Öğe Can Tiktok provide reliable information about orthodontics for patients?(Routledge Journals, Taylor & Francis Ltd, 2022) Arslan, Semiha; Korkmaz, Yasemin Nur; Büyük, Süleyman KutalmışThe aim of this study was to investigate the quality and reliability of the information about orthodontics on TikTok by analyzing the related videos using DISCERN tool and Global Quality Scale. Five orthodontic-related "hashtags" were searched, and a total of 250 video posts were reviewed. Non-English and inappropriate content/quality posts were excluded from the study. The videos were evaluated by using Quality Criteria for Consumer Health Information (DISCERN) toolkit and Global Quality Scale (GQS). Most of the posts were posted by dental professionals (68 posts; 55%), followed by dental clinics (23 posts; 19%), layperson (18 posts; 15%), and technician/dental laboratories (13 posts; 11%). The mean DISCERN score (section 1 section 2) for 122 posts was 38.7/75. The mean overall quality of the 122 posts (section 3) in the DISCERN toolkit was 3.15/5. The average GQS score of 122 posts was 3.18 +/- 0.93. The DISCERN and GQS scores did not have significant differences among the groups (p > 0.05). The DISCERN and GQS results of evaluated TikTok video posts were moderate quality. DISCERN and GQS scores did not differ significantly between the groups. Orthodontists should warn their patients about the reliability of information on social media platforms and should guide them to the right resources.Öğe Comparison of dental and skeletal age estimating methods in children(Univ Zagreb, Sch Dental Medicine, 2023) Güler, Özge Çelik; Deniz, Yeşim; Arslan, SemihaObjectives: Estimating age is a crucial determinant of forensic science. Various methods have been used to estimate dental age (DA) and skeletal age (SA).The aim of the current study was to compare the Cameriere's DA method with the Cameriere's SA method in estimating CA in children. Materials and methods: A total of 216 radiographs of 130 females and 86 males (between 9 to 14.99 years of age) were evaluated in northwestern Turkey. DA was calculated on the panoramic images using Cam-eriere's open-apex method. SA was determined on the lateral cephalograms using the fourth cervi-cal vertebrae method by Cameriere. The DA, SA, and CA data were compared using a paired t-test and Wilcoxon test. Results: The mean CA of all groups was calculated as 12.96 +/- 0.30, the mean DA of 12.74 +/- 0.68 and the mean SA of 12.89 +/- 0.89. In males, the DA method presented an underestima-tion between ages of 14.00 and 14.99 (p<0.05) and an overestimation between ages 9.00 and 11.99 (p<0.05). In females, the DA method showed an underestimation in the 13.00-and 14.99-year-old age groups (p<0.05) and an overestimation in the 10.00-and 11.99-year-old age groups (p<0.05). The SA method revealed a significant underestimation in females between the ages of 13.00 and 14.99 and in males between the ages of 14.00 and 14.99 (p<0.05). Conclusions: The SA estimation method may provide more accurate results compared to the DA method with children of both sexes aged between 9.00 to 12.99 in the determination of CA.Öğe Effects of reverse headgear therapy on mandibular trabecular structure: A fractal analysis study(Wiley, 2022) Arslan, Semiha; Korkmaz, Yasemin Nur; Büyük, Süleyman Kutalmış; Tekin, BeratObjectives The aim of this study was to assess the effects of reverse headgear (RHG) treatment combined with rapid maxillary expansion (RME) on the trabecular structure of the mandibula using fractal dimension (FD) analysis. Methods Forty-four individuals with skeletal Class III malocclusion were selected from the archives and divided into two groups as patients who underwent treatment with RME + RHG (RHG-G, 22 patients) and untreated control group (C-G, 22 patients). The before (T0) and after (T1) treatment lateral cephalometric and panoramic radiographs were collected in the RHG-G and in the control group, radiographs obtained with similar time intervals were grouped as T0 and T1. Cephalometric and FD analysis was conducted on T0 and T1 lateral cephalometric and panoramic radiographs. The intragroup comparison of cephalometric and FD data was performed using paired t test and Wilcoxon Signed Ranks test, while independent t test and Mann-Whitney U test were used for intergroup comparison. Results C-G had higher FD values in the right mandibular corpus and left mandibular ramus values at T0 (P < .05). The only significant difference in the intragroup comparisons was detected in the FD values of the right mandibular corpus in the C-G (P < .05). No significant differences were found in the FD between the groups in any of the areas measured (P > .05). Conclusions RME + RHG therapy did not cause any significant trabecular changes in the mandibula when compared to the control group.Öğe Evaluation of the effects of different composite materials and surface roughening techniques in bonding attachments of clear aligner on monolithic zirconia(Wiley, 2023) Arslan, Semiha; Kılınç, HamiyetObjective: The aim of this study is to evaluate the bond strengths of two different composite types used in the production of clear aligner attachments on monolithic zirconia with three different surface roughening processes.Materials and Methods: Packable composite Filtek Z250 was used in one group (PC-G) and flowable composite Filtek Supreme Ultra Flowable was used in the other group (FC-G). PC-G and FC-G groups were also divided into three subgroups as diamond bur+silane (Group 1), 50 mu m aluminium oxide (Al2O3) sandblasting+silane (Group 2) and 110 mu m Al2O3 sandblasting+silane (Group 3). Scanning electron microscopy (SEM) analysis was performed. Clear aligner attachments were bonded to the monolithic zirconia specimens. Shear bond strength (SBS) values were measured. Statistical analysis was performed using two-way ANOVA and post-hoc Tukey's tests (P < .05).Results: The highest SBS value was found in PC-G sandblasted with 110 mu m Al2O3 (P <= .001). The etching method with 110 mu m sandblasting showed high SBS values in both composite types. The lowest SBS value gave FC-G in diamond bur roughening (P <= .001).Conclusions: For the bonding of clear aligner attachments on monolithic zirconia, roughening with 110 mu m particle size sandblasting and the choice of packable composite could be recommended in terms of retention.Öğe Evaluation of the trabecular structure of the mandibular condyles by fractal analysis in patients with different dentofacial skeletal patterns(Exeley Inc, 2021) Korkmaz, Yasemin Nur; Arslan, SemihaObjective: An orthodontic malocclusion may affect the temporomandibular joint structures in susceptible individuals. This study aims to investigate the bone density of the mandibular condyles in patients presenting with different dentofacial skeletal patterns. Methods: Panoramic radiographs of 200 randomly selected patients with a skeletal and dental Class I, Class II division 1, Class II division 2 and Class III malocclusion were evaluated. Bone density of the right and left mandibular condyles was measured using fractal analysis. Results: No significant difference was detected between the right and left condyles in the various malocclusion groups. However, post-hoc tests showed that Class I patients had significantly higher FD values than Class III and Class II division 1 patients in both right and left condyles following intergroup comparisons. The only significant difference between the genders was detected in the left condyle of Class II division 1 patients, as male patients were found to have significantly higher FD values than females. Conclusions: The results of the present study showed that Class II division 1 and Class III patients displayed significantly lower fractal dimension (FD) values in their mandibular condyles when compared to Class I patients. This might be associated with the possible presence of a temporomandibular disorder in Class II division I patients which resulted in changes to condylar structure, and with less bone complexity in the temporomandibular joint of older Class III patients likely due to continued condylar growth.Öğe Is there a relationship between transverse maxillary deficiency and sella turcica: A cephalometric analysis study?(Scientific Scholar LLC, 2021) Deniz, Yeşim; Arslan, SemihaObjectives: The aim of this study was to investigate the dimensions and morphological variations of sella turcica and to test whether a relationship exists between sella turcica and transverse maxillary deficiency. Materials and Methods: The cephalometric radiographs of patients older than 17.99 years, which have been taken before the orthodontic treatment, and patient records were analyzed to investigate sella turcica dimensional and morphological analysis. Linear measurements of sella are as follows sella length, sella width, sellar area, sella height anterior, posterior, and median. The sella turcica morphological shape analysis was performed into six groups (normal sella turcica, oblique anterior wall, sella turcica bridge, double contour of floor, irregularities of the posterior part of the dorsum sella, and pyramidal shape of the dorsum sella). The width of the maxillary arch is measured by the digital caliper. Male participants with a maxillary width of less than 30.8 mm and a maxillary width of less than 31.1 mm in female patients in the first molar region were determined as a transverse maxillary deficiency. The mean dimensions of sella turcica and the relationship between cases with transverse maxillary deficiency and non-skeletal anomaly were compared using independent samples t-tests. The transverse maxillary deficiency and the sellar morphology relationship were compared using Chi-square test. Post hoc multiple comparisons and analyzes were performed at 95% confidence interval by Bonferroni correction. Results: The sella length measurements yielded higher values among the patients with transverse maxillary deficiency (P < 0.05). The normal sella morphology had quantitative superiority in patients without skeletal anomaly in comparison with transverse maxillary deficiency cases (P < 0.05). It was observed that the sella turcica bridge had a statistically superiority in patients with transverse maxillary deficiency (P < 0.05). Conclusion: The increased sellar measurement and sella turcica bridging, may provide knowledge about possible transverse maxillary deficiency.Öğe Sella tursika köprülenmesi ile maksiller darlık arasındaki ilişkininaraştırılması(2020) Deniz, Yeşim; Arslan, SemihaAmaç: Bu çalışmanın amacı sella tursika köprülenmesi ile maksiller darlık arasındaki ilişkinin değerlendirilmesidir. Gereç ve Yöntem: Bu retrospektif çalışmada, 2017-2019 yılları arasında ortodonti kliniğinde tedavi görmekte olan 18-30 yaşları arasındaki 73 adet maksiller darlık teşhisi almış olan hasta ile 73 adet herhangi bir iskeletsel anomalisi bulunmayan hastanın sella tursika köprülenme tipleri sefalometrik radyografiler üzerinde karşılaştırıldı. Çalışmaya dahil edilen sefalometrik radyografilerin tümü sistemik açıdan sağlıklı, ortognatik cerrahi veya baş boyun bölgesinden herhangi bir travma geçirmemiş olan ortodonti hastalarına ait iyi kaliteli görüntülerdi. Sella tursika köprülenme tipleri Sınıf I (kalsifikasyon yok), Sınıf II (parsiyel kalsifikasyon) ve Sınıf III (tam kalsifikasyon) olarak sınıflandırıldı. Sella tursika köprülenme tipleri ile çalışma grubu ve kontrol grubu arasındaki ilişki ki- kare testi kullanılarak değerlendirildi. Post Hoc çoklu karşılaştırmalarda Bonferroni düzeltmesi yapılarak %95 güven aralığında analizler sürdürüldü. İstatistiksel anlamlılık düzeyi 0,05 olarak kabul edildi.Bulgular: Sınıf I (kalsifikasyon yok), sella tursika köprülenmesi kontrol grubunda çalışma grubuna göre istatiksel olarak anlamlı düzeyde fazla, Sınıf II (parsiyel kalsifikasyon) sella tursika köprülenmesinin ise çalışma grubunda kontrol grubuna göre daha fazla olduğu görüldü (p<0.05). Cinsiyetle sella tursika köprülenme tipleri arasındaki ilişki karşılaştırıldığında maksiller darlık teşhisi olan kadın hastalarda Sınıf II (parsiyel kalsifikasyon) sella tursika köprülenmesi anlamlı düzeyde fazla görüldü (p>0,05).Sonuç: Bu çalışmanın sonucunda, sella tursika köprülenmesi ile maksiller darlık arasında ilişki gözlemlenmiştir. Sella tursika köprülenmesinin olası maksiller darlık oluşumu hakkında öngörü sağlayabileceği veya hastanın yüz profili hakkında bilgi verebileceği düşünülmektedir. Bu çalışma maksiller darlık ile sella tursika köprülenmesi arasındaki ilişkinin incelendiği ilk çalışma niteliğindedir.Öğe Transfer accuracy of four different lingual retainer transfer methods using digital orthodontic models: An in vivo comparative study(E H Angle Education Research Foundation, Inc, 2021) Korkmaz, Yasemin Nur; Arslan, SemihaObjectives: To compare the transfer accuracy of four different lingual retainer (LR) transfer methods using three-dimensional digital models. Materials and Methods: Four groups of 17 patients each were created: finger transfer (FT), silicone key transfer (SKT), acrylic resin transfer (ART), and indirect bonding (IDB). At the end of orthodontic treatment, the mandibular dental casts of patients were scanned with the LR wire. Then, intraoral scanning of the mandibular arches was performed after bonding the retainer wires. Linear and angular measurements were made using software on superimposed digital models. Results: Horizontal and vertical errors among the teeth were not significantly different among the FT, SKT, and ART groups. However, in the IDB group, linear transfer errors showed significant differences among the different teeth. The tip and rotation errors in the FT group were not significantly different among the teeth. The angular errors were lower in canines than in the incisors. In all measured parameters, the SKT group showed the lowest errors, whereas the FT group had the highest transfer errors in all parameters except vertical. Conclusions: Among the transfer methods tested, SKT was determined to have the highest clinical accuracy. (Angle Orthod. 2021;91:778-785.)Öğe Üst çene yetersizliği tedavisinde kullanılan farklı iki yöntemin üst hava yolu gelişimine etkisinin incelenmesi: Bir sefalometrik analiz çalışması(2021) Arslan, Semiha; Korkmaz, Yasemin NurAmaç: Maksiller yetersizliğe sahip olan hastalarda hızlı üst çene genişletmesi sonrasında yüz maskesi tedavisi uygulanabilmektedir. Bu çalışmanın amacı, alt-RAMEC protokolü ile tedavi edilen hastalarla konvansiyonel olarak tedavi edilen Sınıf III eğilimli hastaların üst havayolu gelişimlerinin değerlendirilmesidir. Gereç ve Yöntem: Sınıf III malokluzyona sahip 29 hasta, konvansiyonel hızlı üst genişletme protokolü ve sonrasında yüz maskesi uygulanarak tedavi edilen (HÜÇG-YM) ile Alt-RAMEC protokolü ve sonrasında yüz maskesi uygulanarak tedavi edilen (Alt-RAMEC HÜÇG-YM) olmak üzere iki gruba ayrıldı. Hastaların tedavi öncesi (T0) ve tedavi sonrası (T1) sefalometrik röntgen kayıtları üzerinde ölçüm yapıldı. Sefalometrik değişkenler, eşleştirilmiş t-testi ve Student'ın t-testi kullanılarak değerlendirildi. Bulgular: HÜÇG-YM ve Alt-RAMEC HÜÇG-YM grupları birbirleriyle karşılaştırıldığında hava yolu değerlendirmesinde T0 ve T1 fazları arasında PAS, SPAS, MAS, IAS ve EAS değerlerinde anlamlı bir değişiklik bulunmadı. Sonuç: Alt-RAMEC HÜÇG-YM ile HÜÇG-YM grupları arasında faringeal hava yolu gelişimleri açısından farklılık görülmedi.
