Diş Hekimliği Fakültesi / Faculty of Dentistry
Permanent URI for this collectionhttps://hdl.handle.net/11727/2120
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Item Comment on 'Accelerated Hypofractionated Chemoradiation For Locally Advanced Head And Neck Cancer During Covid-19 Pandemic: A Tertiary Care Experience'(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-10-30) Somay, Efsun; Topkan, Erkan; Selek, Ugur; Pehlivan, BerrinItem Letter to the Editor: Authors' Response(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-05-14) Cetin, Mehtap Bilgin; Sezgin, Yasemin; Yilmaz, Mediha Nur Nisanci; Secgin, Cansu KoseogluItem Comment on Poor Dental Health as a Risk Factor for Alveolar Ridge Malignancies(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-03-21) Somay, Efsun; Topkan, ErkanItem Is The Repair Bond Strength Affected When Substrate And Repair Composite Are Not Of The Same Kind? A Systematic Review And Meta-Analysis: Effect Of Repair Composite On Repair Bond Strength(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-03-21) Kose, Leyla Kerimova; Isik, Hatice; Eyuboglu, Tan Firat; Ozcan, Mutlu; Cehreli, Sevi Burcak; Arhun, NeslihanThe aim was to evaluate the influence of repair resin type on repair bond strength in the direct resin restorations through a systematic review. Electronic databases MEDLINE via PubMed, Web of Science, Scopus, BBO, and LILACS were searched, and the reference lists of relevant studies were further hand-searched. A total of 15,709 articles that were browsed yielding to a final of five studies were included in meta-analysis. Analyses were performed using R software with the 'metafor' package, with standardized mean differences employed. A multi-level meta-analysis was conducted utilizing restricted maximum-likelihood estimates (p <= .05). In the shear bond strength group, significant heterogeneity was observed (Q = 50.274, p < .0001), whereas no significant heterogeneity was detected in the microtensile bond strength group (Q = 5.102, p = .4063). Separate analyses of both shear bond strength and microtensile bond strength groups showed no statistically significant differences between dissimilar and similar materials (p > .05). Egger's regression indicated no evidence of publication bias in either group. Sensitivity analyses revealed statistically insignificant pooled effect sizes for shear bond strength. In the microtensile group, one study influenced the results when excluded from the analysis. It could be suggested that the repair of composite resin with the same kind of resin composite is not mandatory.Item Evaluation of the Consistency of Two Interproximal Reduction Methods in Clear Aligner Therapy: A Preliminary Study(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-04-06) Ergun, Pelinsu Gulec; Ozcirpici, Ayca Arman; Kocabalkan, Azize Atakan; Tuncer, Nilufer IremObjective: To compare the consistency of two interproximal reduction (IPR) methods in terms of the amount of planned and performed IPR during clear aligner therapy (CAT). Methods: Thirty-four patients who received IPR using hand -operated abrasive strips (Group 1, 20 patients, 162 teeth) and motordriven 3/4 oscillating segmental disks (Group 2, 14 patients, 134 teeth) during CAT were included in this preliminary study. The consistency between the planned and performed IPR amounts was evaluated within and between groups for teeth and quadrants. Results: In Group 1, the amount of IPR performed on teeth numbers 22 and 43 and in the upper left quadrant was found to be statistically less than that of planned. On the other hand, the amount of performed IPR was statistically higher on tooth number 44 and in the upper right quadrant, whereas it was statistically less on tooth number 33 when compared with the planned amount in Group 2. The inconsistency between the planned and performed IPR amounts were statistically significant only in Group 1 and for teeth numbers 11, 21, 32, 33, and 43. No significant difference was found when the same parameter was compared between the groups. Conclusion: The consistency of IPR was found to be better with the motor -driven oscillating disk system than with the hand -operated IPR strip system.Item Reduced-dose radiotherapy for Epstein-Barr virus DNA selected staged III nasopharyngeal carcinoma: A single-arm, phase 2 trial(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-03-29) Topkan, Erkan; Somay, Efsun; Selek, Ugur; Pehlivan, BerrinItem Comments on "Accounting for Fractionation and Heterogeneous Dose Distributions in the Modelling of Osteoradionecrosis in Oropharyngeal Carcinoma Treatment"(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-03-25) Somay, Efsun; Yilmaz, Busra; Topkan, ErkanItem The Extent Of Unnecessary Tooth Loss Due To Extractions Prior To Radiotherapy Based On Radiation Field And Dose İn Patients With Head And Neck Cancer(Başkent Üniversitesi Mühendislik Fakültesi, 2024-03-27) Somay, Efsun; Topkan, Erkan; Selek, UgurItem Tooth Extraction and Osteoradionecrosis(Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-04-08) Topkan, Erkan; Somay, Efsun; Selek, UgurItem Predictive Potential Of Pan-Immune-Inflammation Value / Hemoglobin Index As Biomarker For Osteoradionecrosis Risk In Locally Advanced Nasopharyngeal Carcinomas(JOURNAL OF STOMATOLOGY ORAL AND MAXILLOFACIAL SURGERY, 2024-03-27) Yilmaz, Busra; Somay, Efsun; Topkan, Erkan; Pehlivan, Berrin; Besen, Ali Ayberk; Mertsoylu, Huseyin; Selek, UgurObjective: We aimed to investigate whether the Pan-Immune-Inflammation-Value/Hemoglobin (PIV/Hb) index could predict the risk of osteoradionecrosis (ORN) in patients receiving concurrent chemoradiotherapy (CCRT) for locally advanced nasopharyngeal cancer (LA-NPC). Materials and methods: This retrospective analysis included LA-NPC patients who underwent CCRT and preCCRT oral exams at our institution's Departments of Radiation Oncology and Dentistry between January 2010 and December 2022. The relationship between ORN rates and PIV-Hb levels was explored using receiver operating characteristic curve analysis. The primary objective was to establish a correlation between pre-CCRT PIV-Hb levels and ORN rates, while the secondary objective was to identify other risk factors for ORN. Results: Of 249 eligible patients, 21 (8.4 %) were diagnosed with ORN. The optimal pre-CCRT PIV/Hb cutoff was 73.8, which divided patients into two subgroups with distinctive ORN risk estimates: Group 1: PIV/ Hb < 73.8 (N = 206), and Group 2: PIV/Hb >= 73.8 (N = 43). The results of the comparative analysis indicated that the cohort with PIV/Hb >= 73.8 exhibited substantially higher rates of ORN than the PIV/Hb < 73.8 cohort (44.2 % vs. 1.0 %; P < 0.001). The multivariate logistic regression analysis indicated that the pretreatment PIV/ Hb >= 73.8 was independently associated with higher ORN rates (P < 0.001). Conclusion: The results of our current investigation indicate that higher levels of pretreatment PIV/Hb were associated with a significant independent increase in ORN rates in LA-NPC patients who received CCRT. (c) 2024 Elsevier Masson SAS. All rights reserved.