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    Assessment of Undergraduate Dentistry Students’ Experiences and Self-Confidence Levels During Endodontic Treatment: A Cross-Sectional Survey Study
    (2022) Dincer, Gozde Akbal; Erdogan, Deniz; Türkyılmaz, Ali; Erdemir, Ali
    Objective: The goal of this study is to compare experi ences and self-rated confidence levels between 4th and 5th year students across endodontic assignments. Material and Methods: A survey con sisting of 26 questions was organized at the termination of the academic year with the involvement of 4th and 5th year students studying at Kırıkkale University Faculty of Dentistry in accordance with the Princi ples of the Declaration of Helsinki. First 16 questions were about levels of confidence. Other questions prepared as multiple choices are about their experiences in endodontic procedures. The data obtained after col lecting the questionnaires were analyzed by using chi-square, Fisher’s exact and Mann-Whitney U tests at the 5% significance level. Results: One hundred and sixteen students (64 of 72 4th and 52 of 62 5th grade stu dents) answered the survey. The participation rate was 86.27%. The Grade-5 group felt statistically more confident about radiographic tech niques, determining the working length, mechanical instrumentation and filling of the root canals (p=0.030, p=0.001, p=0.011, p=0.020). Com paring mechanical instrumentation in maxillary and mandibular molars, the Grade-4 group felt statistically significantly confident in instrumen tation of the mandibular molars (p=0.000). The Grade-4 group felt sta tistically more confident in performing periapical radiographs of maxillary anterior teeth (p=0.000) and the Grade-5 group of mandibular molars (0.001). Additionally, students think that endodontics are more difficult than other dentistry departments (p=0.000). Conclusion: Within the limitation of this study, evaluating the major student difficulties dur ing endodontic treatment may improve teaching strategies throughout preclinical and clinical education.
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    Comparison of Neurokinin A, Substance P, Interleukin 8, and Matrix Metalloproteinase-8 Changes in Pulp tissue and Gingival Crevicular Fluid Samples of Healthy and Symptomatic Irreversible Pulpitis Teeth
    (ELSEVIER SCIENCE INC, 2020) Dincer, Gozde Akbal; Erdemir, Ali; Kisa, Ulcer
    Introdution: The aim of this study was to compare levels of neurokinin A (NKA), substance P (SP), interleukin (IL)-8, and matrix metalloproteinase-8 (MMP-8) in pulp tissue and gingival crevicular fluid (GCF) samples of healthy and symptomatic irreversible pulpitis teeth. Methods: Forty patients diagnosed with healthy and symptomatic irreversible pulpitis teeth were included in this study. NKA, SP, IL-8, and MMP-8 levels were measured using the enzyme-linked immunosorbent assay test after pulp and GCF samples were obtained from healthy (n = 20) and symptomatic irreversible pulpitis teeth (n = 20). GCF sampling of 40 teeth was repeated 1 week later. Routine root canal treatment procedures of the teeth were performed, and the treatment process was completed. As a control group, GCF samples were taken from the contralateral teeth in both groups. Statistical analysis was performed using dependent and independent t tests, analysis of variance, Kruskal-Wallis, Mann-Whitney U tests, and Pearson correlation analysis. Results: Comparing the groups, all mediator levels were significantly higher in the pulp samples in the pulpitis group compared with the healthy group (NKA: P < .001, SP: P = .005, IL-8: P < .001, and MMP-8: P < .001). Likewise, in the pulpitis group, all mediator levels were significantly higher in the first GCF samples compared with the healthy group (NKA: P = .01, SP: P < .001, IL-8: P = .001, and MMP-8: P < .001). Conclusions: It was observed that NKA, SP, IL-8, and MMP-8 increased significantly in pulp tissue and GCF specimens of symptomatic irreversible pulpitis teeth compared with pulp tissue and GCF specimens of healthy teeth. Second, it was determined that NKA, SP, IL-8, and MMP-8 levels decreased significantly in GCF samples in teeth diagnosed with symptomatic irreversible pulpitis 1 week after the removal of inflamed pulp. Finally, SP, IL-8, and MMP-8 levels were found to be higher in pulp tissue samples of the patients with symptomatic irreversible pulpitis with higher pain scores than those with low pain scores.
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    Erratum to Comparison of Neurokinin A, Substance P, Interleukin 8, and Matrix Metalloproteinase-8 Changes in Pulp tissue and Gingival Crevicular Fluid Samples of Healthy and Symptomatic Irreversible Pulpitis Teeth [J Endod 46 (2020) 1428-1437] (Journal of Endodontics (2020) 46(1428-1437) (S0099239920305008), (10.1016/j.joen.2020.07.013))
    (Elsevier Inc., 2021) Dincer, Gozde Akbal; Erdemir, Ali; Kisa, Ucler
    The third author's name has been spelled incorrectly. The correct spelling is: Ucler Kisa. The authors apologize for this error. © 2020 American Association of Endodontists