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    Contribution of Türkiye to the field of endodontology: a visualized bibliometric analysis based on web of science
    (2023) Özdemir, Olcay; Özbay, Yağız; Yılmaz Çırakoğlu, Neslihan
    Aim: To determine the current status and trend of endodontic research in Türkiye.Materials and Methods: A comprehensive literature survey was conducted using the Clarivate search engine. Keyword selection was as follows: “Endodontics” and “Türkiye”. All publications until May 2022 were included. The search was restricted to endodontics. Title, first author, country/institute, journal name, publication year, citation, abstracts, and keywords were recorded. VOSviewer version 1.6.10 software was used to map the bibliometric network of the exported data that has an automatic term identification algorithm.Results: A total of 672 articles between 1985-2022 years were included. The scientific contribution rate of Türkiye was found 4.12% in the field of Endodontology. The highest number of publications is in the category of ‘Dentistry Oral Surgery Medicine’ with 588 articles and 384 (73%) published by Journal of Endodontics.Conclusion: This bibliometric analysis highlights Türkiye’s contribution to the field of Endodontology. Research articles have been contributed by various authors and institutions.
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    DECISION-MAKING PROCESS IN ENDODONTIC PRACTICE
    (Platanus Publishing, 2023-10-01) Özdemir, Olcay; Yılmaz Çıkakoğlu, Neslihan
    [Abstract Not Avacilable]
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    Evaluation of antibacterial and biocompatibility of radiopaque bioactive glass-based endodontic cements
    (Elsevier, 2025-01-06) Saud, A. Najah; Koç, Erkan; Özdemir, Olcay; Cetin Y.; Yildizhan Y.
    This study evaluated the antibacterial properties, hemocompatibility, cytotoxicity, and genotoxicity of bioactive glass ceramic-based endodontic cement formulated with various radiopaque active ingredients with varying concentrations (0, 15, and 20 wt%). Antibacterial activity against E. faecalis was assessed using colony-forming unit (CFU) assays. The results showed significant antimicrobial activity of the bioactive glass-based cement, which was enhanced by adding radiopaque active ingredients. Lanthanum oxide exhibited the highest antibacterial activity at a concentration of 20 %, reducing the CFU count from 6,000,000 (control) to 1,190,000. Bismuth oxide and samarium oxide also showed dose-dependent improvements in antibacterial properties. Hemocompatibility analysis revealed that all cement samples, including those containing radiopaque agents, remained nonhemolytic after 1-h- and 24-h incubation, indicating excellent compatibility with human blood. Cell viability testing with the L929 cell line showed that the cement samples achieved the required cell viability threshold of 70 % according to ISO 10993–5:2009 over 1, 3, and 7 days of exposure. Genotoxicity assessment using comet assay revealed no detectable DNA damage in the cement samples compared to the negative control. These comprehensive results confirm the biocompatibility and strong antibacterial properties of the bioactive glass ceramic-based endodontic cement samples containing various radiopacity agents.
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    Post endodontic pain severity after single visit treatment using twisted-file, tf-adaptive, and trunatomy file systems: a questionnaire-based observational study
    (2022) Yılmaz Çırakoğlu, Neslihan; Özdemir, Olcay
    Purpose: This observational study aimed to evaluate post endodontic pain using Twisted File (TF), TF- Adaptive (TFA), and TruNatomy (TRN) files after a single visit root canal treatment. Methods: A total of 150 healthy patients with asymptomatic maxillary or mandibular molar teeth iden- tified for root canal treatment were allocated into three groups according to the instrumentation tech- nique used: Group 1 (TF), Group 2 (TFA), and Group 3 (TRN) file systems were used in a single visit. The pain level after 72 h was questioned using a visual analog scale. Scores were analyzed using the Chi- square test with a significance value of p< 0.05. Results: A significant difference was found between groups in terms of pain incidence (p = 0.048). In the pairwise comparison, there was no difference between Groups 1 and 2 (TF and TFA) (p = 0.547), and there was no difference between Groups 1 and 3 (TF and TRN) (p = 0.201). A significant difference was found between Group 2 (TFA) and Group 3 (TRN) in terms of pain incidence (p = 0.007). Conclusion: All file systems used in the study caused post endodontic pain. When evaluating patients experiencing “no pain,” the incidence of symptoms was higher with the TRN system
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    Pulp preservation for dens invaginatus case: Report of direct pulp capping on invagination and partial pulpotomy to the main structure
    (Elsevier, 2024-12-01) Özdemir, Olcay
    Root canal treatment can be considered a conservative approach for complex root canal configurations due to the aberrant and unpredictable internal anatomy. Although advanced imaging, current irrigation systems, and biomaterials have improved the management of anomalies like dens invaginatus, early identification and pulp preserver approaches are crucial in preventing pulpal pathology, avoiding complex-specialized endodontic treatment, and unintentional complications. This report presents a management utilizing pulp preservation of a 14-year-old patient and successful prognosis with a 2-year follow-up, including partial pulpotomy to the main canal and direct capping to the pulp of invaginated structure in Type II dens invaginatus.
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    Topographic analysis of hyflex edm glide path, proglider, trunatomy glider, and waveone gold glider after micro-glide path preparation in simulated root canals with single curvature
    (2023) Özdemir, Olcay; Koçak, Sibel; Hazar, Ecehan; Saglam, Baran Can; Koçak, Mustafa Murat
    Purpose: This study aimed to compare HyFlex electrical discharge machining Glide Path, ProGlider, TruNatomy Glider, and WaveOne Gold Glider in terms of topographic changes after instrumentation. Methods: Simulated canals with 40° curvature were used to analyze the surface behavior of four brands of micro-glide path files (n = 36 in total, n = 3/subgroup). The files were used in single or three simu- lated canals for micro- glide path preparation. Surface topographies were evaluated using atomic force microscopy. The data were analyzed with Shapiro–Wilk and two-way robust analysis of variance tests. Results: RMS median values did not differ according to the file groups (p = 0.448) and use (p = 0.055). There was a significant difference between the intact WaveOne Gold Glider group and the use of 3 times (p = 0.002). Conclusion: The tested files exhibited acceptable surface behavior considering single use but in multi- rooted teeth. However, it should be considered that more surface distortion occurs on the surface of heat-treated files when used for multiple roots, especially curved ones.