Person: ALKAN, ELİF
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Publication Metadata only Effect of herbal toothpastes containing moringa oleifera on dentin tubule occlusion in erosive cycle model(2022-12-16) ALKAN, ELİF; TAĞTEKİN, DİLEK; ALKAN E., TAĞTEKİN D., KORKMAZ N.Publication Metadata only Assessment of toothpastes through simulated-brushing for surface-roughness and reversing-back composite-discoloration(2023-07-03) MEŞELİ, SİMGE; ALKAN, ELİF; KORKUT, BORA; TAĞTEKİN, DİLEK; MEŞELİ S., ALKAN E., KORKUT B., TAĞTEKİN D., YANIKOĞLU F.Publication Metadata only Analyses of herbal toothpaste's antimicrobial efficacy: in-vitro study(2022-09-15) MEŞELİ, SİMGE; AKSU, MEHMET BURAK; ALKAN, ELİF; TAĞTEKİN, DİLEK; MEŞELİ S., AKSU M. B., ALKAN E., KORKMAZ N., TAĞTEKİN D., YANIKOĞLU F.Publication Metadata only Effect of the use of remineralization agents before resin infiltration on the treatment of initial enamel lesions: OCT, ultrasound, and SEM evaluation(2023-06-11) MANAV, AYBİKE; DOĞU KAYA, BENGÜ; YILMAZ ATALI, PINAR; ALKAN, ELİF; TAĞTEKİN, DİLEK; MANAV ÖZEN A., DOĞU KAYA B., YILMAZ ATALI P., SARIALİOĞLU GÜNGÖR A., ALKAN E., DALKILIÇ E., TAĞTEKİN D., TÜRKMEN C.Aim: It was aimed to investigate the effect of using remineralizing agent before resin infiltration application on the treatment of initial enamel lesions with OCT (Optical Coherence Tomography), Ultrasound and SEM (Scanning Electromicroscope). Materials and Methods: 80 enamel samples were kept in the demineralization solution (pH 4.5, 37°C) for 96 hours. Demineralized enamel samples will be randomly divided into 8 groups (n=10) including a remineralizing agent(Toothmousse/GC, Remin Pro/VOCO, Medical Mineral Gel/ROCS), resin infiltration (ICON/DMG), and a combined treatment of both. All remineralization agents were applied in remineralization cycle 2 times a day for 1 week.Measurements made from the enamel samples at the baseline, after demineralization and remineralization procedures evaluated with the OCT (Topcon3D OCT-1 Maestro) and ultrasonic system (Novascope 4500:NDT) lesion depths were measured. The sample surfaces were examined under SEM/EDS (Zeiss EVO-MA10) at x1000, 2500, 5000 and 10000. Data were analyzed in R program with WRS2. Two-way Robust Anova, Benferroni Test, and ICC (Intra-Class Correlation Coefficient) was used to examine the agreement between measurements. Significance level was set at p<0.05. Results: There was no statistical difference between the groups in OCT (p=0.884) and Ultrasound (p=0.051) median values after the protocols. In both measurement methods, the effect of remineralization treatments was statistically significant for lession depth (p<0.01). OCT median values were 104.01 in baseline, 144.78 in post-demineralization, and 90.5 in post-remineralization. Ultrasound median values were 1.34 in baseline, 1.1 in postdemineralization, and 2.36 inpost-remineralization. The highest ultrasound median value was obtained in the Remin Pro+ICON after remineralization (2.67), while the lowest value was obtained after demineralization (1.04). As a result of EDS analysis, the lowest Ca ratio (%atomic) was observed on the grup 5-ICON applied enamel surface (9.35). Conclusion: Although there is no significant difference between the groups, all groups were found efficient for remineralization treatments according to OCT, Ultrasound, and SEM/EDS analysis.Publication Open Access Survey study on awareness and consciousness level of sustainability in dentistry(2023-09-01) TAĞTEKİN, DİLEK; AKMANSOY, ŞÜKRÜ CAN; ALKAN, ELİF; BEŞİROĞLU S., TAĞTEKİN D., AKMANSOY Ş. C., ÖZKUYUCU D., ALKAN E.The United Nations' 17 Sustainable Development Goals (SDGs) are vital for equitable global benefits and a healthier future. This study examines the awareness levels of individuals with and without clinical dentistry training using LimeSurvey Community Edition and SPSS (Version 28.0.1.). The survey, conducted between July 15, 2021, and January 1, 2022, had 1734 participants, excluding third-grade students due to differing clinical instruction. Dental students, dentists, specialty/PhD students, specialists, academicians, and health personnel were included. The dental questionnaire comprised 26 questions, with statistically significant differences (p<0.05) in 11 responses. Those with clinical dental education showed significant (p<0.05) positive responses to sustainability-related questions, but no significant difference (p≥0.05) in general sustainability statements. The study emphasizes the need to define fundamental steps to address the current lack of interest in Sustainability in Dentistry and suggests integrating sustainability topics into the dental curriculum. Encouraging such practices can have a global impact, aligning with the SDGs. Educating dentistry professionals on sustainability will contribute to achieving these goals and benefitting present and future generations.Publication Open Access Evaluating the effects of different remineralization agents on initial enamel lesions in vitro(2022-04-23) ALKAN, ELİF; YILMAZ ATALI, PINAR; TAĞTEKİN, DİLEK; SARIALİOĞLU GÜNGÖR A., DALKILIÇ E., ALKAN E., YILMAZ ATALI P., TAĞTEKİN D.Aim: Disruption of the demineralization–remineralization balance could activate the development of initial enamel lesions. Extrinsic assistance is needed to remineralize enamel lesions. The aim of this study was to evaluate the efects of fuoride varnish, enamel matrix proteins derivative, and experimental bioactive glass (BAG) on remineralization of initial enamel lesions in vitro. Materials and Methods: Artifcial initial caries lesions were developed on ffty human enamel samples using demineralization solution (pH 4.5, 37°C, 96 hours). Samples were randomly assigned to 5 groups (n=10): I-Fluoride varnish (Enamelast), II-Experimental BAG + 37% phosphoric acid (PA), III-Enamel matrix proteins derivative (EMPD, Emdogain) +Ethylenediamine-Tetraacetic-Acid (EDTA), IVEMPD+37% PA, V-Control (untreated). All remineralization agents were applied with pH cycling for 7 days. The samples were scanned by optical coherence tomography (OCT) at baseline, demineralization, and after pH cycling. Lesion depths were measured using image analysis software (ImageJ). Lesions were evaluated using surface microhardness (SMH) and two fuorescence methods (FluoreCam® and DIAGNOdent Pen (DDPen)). The data were statistically analyzed by Kruskal Wallis, Friedman, and Wilcoxon tests (p<0.05). Results: According to OCT results, fuoride varnish was found to be the most efective agent in reducing lesion depth (p=0.005). Depending on SMH results, all agents increased the surface hardness values after pH cycling. No signifcant diference was found among fuoride varnish, BAG, and EMPD+PA groups. And these microhardness values were signifcantly higher than EMPD+EDTA and control groups (p<0.001). According to the DDPen score criteria, all groups showed lower scores compared with the control group (p<0.001), however, Clinical Oral Investigations (2022) 26:7299–7348 7317 1 3 no signifcant diference was found among the remineralization agent groups. In FluoreCam assessment, size and intensity values of all treated groups showed improvement. However, there was no signifcant diference between the treatment groups in terms of FluoreCam-size measurements (p=0.186). Conclusion: BAG and EMPD+PA has a remineralization capacity as much as fuoride varnish. EMPD+PA showed better microhardness and lesion intensity results than EMPD+EDTA.Publication Metadata only Efficacy of herbal toothpastes containing Moringa Oleifera and hempon dentine tubule occlusion(2023-07-10) ALKAN, ELİF; TAĞTEKİN, DİLEK; ALKAN E., TAĞTEKİN D., KORKMAZ N.Publication Open Access Microleakage Evaluation of Photopolymerization Efficiency in Different Layering Methods of New Generation Led Light Devices(2023-07-01) ALKAN, ELİF; TAĞTEKİN, DİLEK; YÜCEL M., ALKAN E., TAĞTEKİN D., YANIKOĞLU F.Background/Aim: The aim of this study was to examine the microleakage values after restoring the prepared Class II box cavities using two different composite resins with three different layering methods and polymerizing them with five different LED light devices. Material and Methods: Class II box cavities were prepared in 150 extracted mandibular molars. Nanoceramic composite resin (Ceram.x SphereTEC one universal A2, Dentsply, Germany) and bulk fill composite resin (SDR flow+ A2, Dentsply, Germany) were used for the restoration of the cavities. Teeth were restored with three different layering methods (bulk fill, horizontal layering, and centripetal buildup technique) and five different LED light devices [(Smartlite Focus, Dentsply, USA), (Led.E, Woodpecker, China), (Valo Cordless, Ultradent, USA), (Bluephase N, Ivoclar Vivadent, Liechtenstein), (D-Light Pro (GC, USA)] and then subjected to microleakage analysis. Kruskal Wallis and Mann Whitney U test were used for statistical analysis. Th e data was evaluated under p<0.005 significant level. Results: Using different layering methods did not affect microleakage scores statistically (p=0.7683). Applying bulk-fill composite resin with 2 mm horizontal layers or using the centripetal buildup technique did not show significant differences in microleakage. Second- and third-generation light devices demonstrated no statistical difference in microleakage (p=0.9075). Conclusions: Using different layering methods and different curing units did not make any difference in microleakage. Keywords: Composite Resins; Curing Lights, Dental; Dental Leakage; Dental Restorations, Permanent.Publication Metadata only Remineralization efficiency of herbal products(Bilgin Kültür Sanat Yayınları, 2022-01-01) ALKAN, ELİF; TAĞTEKİN, DİLEK; ALKAN E., TAĞTEKİN D.Dental caries is one of the most common chronic diseases in the world and might cause tooth loss when not treated properly. The concept of modern dentistry aims to prevent the progression of caries with early diagnosis, and to improve the aesthetics and function of the tooth with the remineralization process. Thus, caries lesions without cavity are treated with a noninvasive method (Nagarathana et al., 2015). Demineralization occurs through the leaving of mineral ions in dental hard tissues from hydroxyapatite crystals. Restoring these mineral ions to hydroxyapatite crystals is called remineralization. Both processes take place on the tooth surface and a large number of mineral ions can be lost from hydroxyapatite without deterioration of tooth integrity. As a result of the deterioration of the hydroxyapatite structure, cavities are formed. Demineralization is a reversible process; therefore, partially demineralized hydroxyapatite crystals in teeth can be remineralized (Higham, 2016). Enamel caries diagnosed at the initial stage can be treated by regulating diet, controlling plaque formation, and applying appropriate antibacterial agents, thus, demineralized dental tissue can become remineralized (Guerrieri et al., 2012).Publication Metadata only Gelişimsel mine lezyonlarının estetik rehabilitasyonu: Aşamalı bir yaklaşım(2023-12-09) KIZIL, EZGİ; ALKAN, ELİF; TÜRKMEN, CAFER; TAĞTEKİN, DİLEK; KIZIL S. E., ALKAN E., TÜRKMEN C., TAĞTEKİN D.