Person: TAĞTEKİN, DİLEK
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TAĞTEKİN
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DİLEK
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Publication Metadata only Metagenomic analysis of black-stained plaques in permanent dentition(PERGAMON-ELSEVIER SCIENCE LTD, 2021) ILGIN, CAN; Celik, Zeynep Ceren; Cakiris, Aris; Yanikoglu, Funda; Abaci, Neslihan; Ekmekci, Sema Sirma; Ilgin, Can; Celik, Halil; Tagtekin, DilekObjectives: We aimed to determine the aetiologic agent responsible for black staining of permanent dentition using next-generation sequencing and determine the relationship between caries and black stains. Materials and methods: A total of 52 systemically healthy patients with black-stained and caries-free (n = 13), black-stained and carious (n = 13), black stain-free and caries-free (n = 13), and black stain-free and carious (n = 13) teeth were enrolled in the study. The International Caries Detection and Assessment System (ICDAS II) was used for caries classification. Between 08:00 and 10:00, supragingival plaque samples were collected after a minimum of 8-12 h of accumulation and DNA samples were isolated. The samples were processed using the ZymoBIOMICS (TM) Service. Bioinformatics analysis was performed using mothur at usegalaxy.org. Data were analysed statistically using the Pearson chi-square and Fisher tests. Results: The number of caries-free teeth (ICDAS 0, 1, and 2) was significantly higher in patients with black stains (p = 0.007).Capnocytophaga (4.8 %), Corynebacterium (3.9 %), and Neisseria (5.4 %) species were the most abundant among all black-stained plaques (carious and caries-free) (p < 0.05). Capnocytophaga (10.8 %), Cardiobacterium (3.6 %), and Rothia (1.72 %) species were detected in the black-stained plaques of caries-free patients (p < 0.05). Conclusion: This study is one of the first studies examining the microbial composition of dental plaques with black staining in carious and caries-free adult patients using next generation sequencing technology. In the presence of black staining, plaques have an ultimate complex microbial structure. A lower caries burden was noted in the presence of black staining.Publication Metadata only The relation between laser fluorescence scores after caries removal and microtensile bond strength(2023-07-04) KANAR, ÖZLEM; TAĞTEKİN, DİLEK; KORKUT, BORA; KARGÜL, BETÜL; KANAR Ö., TAĞTEKİN D., KORKUT B., YANIKOĞLU F., KARGÜL B.Publication Metadata only The Efficacy of Glass-Ceramic Onlays in the Restoration of Morphologically Compromised and Endodontically Treated Molars(QUINTESSENCE PUBLISHING CO INC, 2013) TAĞTEKİN, DİLEK; Ozyoney, Gurol; Yanikoglu, Funda; Tagtekin, Dilek; Hayran, OsmanPurpose: This study evaluated the 4-year clinical performance of IPS Empress II ceramic onlay restorations on extensively restored, endodontically treated molars. Materials and Methods: A sample of 53 morphologically compromised and endodontically treated molar teeth were restored with IPS Empress II ceramic onlays cemented with a dual-cured luting composite. The molars were evaluated by two experienced clinicians in accordance with the modified United States Public Health Service criteria at baseline and 6-month recalls up to a 4-year observation period. The analyses were carried out using the Wilcoxon signed-rank test and the Kaplan-Meier product limit method. Results: Four failures were noted. Two onlays debonded; one was reinserted and reluted while the other resulted in lost coronal hard tissue and was restored with a fiber-reinforced post-and-core system followed by a full ceramic crown restoration. The third failure resulted from secondary caries and fracture of the remaining enamel and was restored with a full ceramic crown. The fourth failure was extracted. None of the onlays exhibited wear, fracture of antagonist teeth, or dimensional change at proximal contacts. Conclusion: Within the limitations of this study's design and short 4-year observation period, IPS Empress II ceramic onlay restorations demonstrated promising results with a 92.5% success rate.Publication Metadata only Caries detection with DIAGNOdent and ultrasound(MOSBY-ELSEVIER, 2008) TAĞTEKİN, DİLEK; Tagtekin, Dilek A.; Ozyoney, Guerol; Baseren, Messeret; Ando, Masatoshi; Hayran, Osman; Alpar, Reha; Gokalp, Saadet; Yanikoglu, Funda C.; Stookey, George K.Objective. The objective of this study was to evaluate the repeatability of 2 nondestructive caries detection methods, ultrasound (ULS) and DIAGNOdent, for the detection of approximal caries lesions, and to evaluate 2 tips provided for the DIAGNOdent. Study design. White/brown-spot lesions (n = 42) were captured by a digital camera, and measured by test methods and confocal laser scanning microscope (CLSM). Intra- and inter-observer reliability, accuracy, and Cohen's kappa and Spearman's rho statistics were used. Results. At DIAGNOdent, intra-observer agreements were 78.5%, 66.7% for A tip and 59.5%, 47.6% for B for 2 examiners, respectively. Accuracy of both tips was 50% for the first examiner; 45.3% for A and 47.6% for the B tip for the second examiner. All ULS measurements were accurate, reliable, and positively and significantly correlated between examiners. Conclusion. The A tip of the DIAGNOdent was found to be better than the B tip for the detection of enamel caries. All DIAGNOdent and ULS measurements were positive and significantly correlated for both examiners. Both methods demonstrated high repeatability and accuracy. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008; 106: 729-35)Publication Metadata only Braket söküm sonrası artık rezinlerin tespiti ve uzaklaştırılmasını takiben tek renk kompozit restorasyon ile diastema kapatılması: 1 yıllık takip(2022-12-17) DOĞU, BENGÜ; YILMAZ ATALI, PINAR; SEVER, DENİZ MELTEM; TAĞTEKİN, DİLEK; DOĞU KAYA B., YILMAZ ATALI P., SEVER D. M., TAĞTEKİN D.Publication Metadata only Do ginger extract, natural honey and bitter chocolate remineralize enamel surface as fluoride toothpastes? an in-vitro study(Wolters Kluwer Medknow Publications, 2021) KARGÜL, BETÜL; Celik Z.C., Yavlal G.O., Yanikoglu F., Kargul B., Tagtekin D., Stookey G.K., Peker S., Hayran O.Background: In recent literatures, much attention has been given to natural products for their health benefits. Aims: In this study, the objective was to measure the efficacy of the ginger-honey-chocolate mixture as the remineralization effect has been shown in the literature previously and to evaluate the individual contributions of this mixture; ginger, natural honey, bitter chocolate separately on remineralization of initial enamel caries lesion. Materials and Methods: All specimens were divided into eight groups as: Ginger (Arifoglu®, Turkey) in powder form, (n = 8); Ginger-Honey-Chocolate (n = 8); Natural honey (Balparmak Plateau Blossom Honey®, Turkey) (n = 9); Bitter chocolate (Nestlé®, Switzerland) (n = 8); MI Paste (GC, Japan) (n = 8); Paradontax (Sensodyne, Glaxosmithklein, USA) (n = 9); Pronamel (Sensodyne, Glaxosmithklein, USA) (n = 9); Control (n = 9) groups. Samples were carried out five pH cycles along 7 days at 37°C for each group. During pH cycling, blocks were put in a demineralization (6 h) and a remineralization solution (18 h). The treatment consisted of 1 min. interaction of enamel surfaces with agent/deionized slurries (1:3 w/w) on a daily basis. The surface microhardness (SMH) was determined before and after pH cycling with a Digital Micro-Vickers Hardness Tester (Wilson Wolpert; Europe BV, 401 MVD, Netherlands). Mineral changes were determined by using FluoreCam® and recovery values were calculated as SMHR% and FΔ%, respectively. Results: All groups showed an enhanced remineralization. There was no significant difference in terms of FΔ% (F = 1.223, P = 0.304) and SMHR% (F = 0.709, P = 0.664) between all groups. Conclusion: The herbals (ginger, honey, and bitter chocolate) examined in this study gave promising results with a high remineralization potential. © 2021 Wolters Kluwer Medknow Publications. All rights reserved.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 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 Metadata only Mine yüzeyinde artık rezin temizlemek Için kullanılan farklı tekniklerin etkinliğinin değerlendirilmesi(2022-11-06) KORKUT, BORA; KAHRAMANOĞLU, ERKUT; TAĞTEKİN, DİLEK; KORKUT B., Uzun K. E., Haciali C., ÖZTÜRK B., KAHRAMANOĞLU E., TAĞTEKİN D.
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