Person: TÜRKMEN, CAFER
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TÜRKMEN
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CAFER
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Publication Metadata only Büyük azı keser hipomineralizasyonunda minimal invaziv tedavi yaklaşımı ve klinik takipte dijital floresans yöntemlerin kullanımı(2022-12-18) YILMAZ ATALI, PINAR; TAĞTEKİN, DİLEK; TÜRKMEN, CAFER; Altuntaş E., Yılmaz Atalı P., Türkmen C., Tağtekin D.Molar kesici hipomineralizasyonu (MIH), amelogenezisin olgunlaşma aşamasında ameloblast hücrelerinin çeşitli çevresel ve sistemik faktörlere maruz kalması sonucu azı ve kesici dişlerde gelişen ve estetik kaygılara neden olan bir mine defektidir. Bu olgu sunumunda MIH tedavisi için mikroabrazyon ve evde beyazlatma planlandı.Üst kesici dişlerde beyaz lezyon şikayeti ile kliniğimize başvuran 17 yaşındaki kadın hasta klinik ve radyografik olarak muayene edildi. Hem maksiller hem de mandibular arkta görünür opasiteler saptandı ve diş tedavisi için mikroabrazyon ve evde beyazlatma teknikleri planlandı. lezyonların tedavisi. Mikroabrazyon uygulamasından önce lezyonların üzerine iki hafta süreyle Tooth Mousse Gel (GC) uygulandı. Gölge seçimi spektrafotometre (Vita EasyShade V) ile yapıldı. Rubber dam izolasyonu (maksiller ark) ve diş eti bariyeri (mandibular ark) altında OpalCups (Ultradent) kullanılarak üreticinin yönergelerine göre 3 ardışık döngüde Opalustre (Ultradent) uygulandı. Mikroabrazyon sonrası 4 dakika florür vernik (%4 NAF, ProShield, President Dental) uygulandı. %16 Karbamid Peroksit (Opalescence PF, Ultradent) kullanılan özel yapım beyazlatma tepsisi ile 5 hafta evde beyazlatma jeli uygulandı. Hasta 7,14,21,28 ve 35 gün geri çağrıldı. Dişlerin lezyonlarının ve renginin incelenmesi için.Tedavi öncesi ACP-CPP içeren jel kullanılması mine hipomineralizasyonlarının görünürlüğünde fark yaratmıştır. Hastanın şikayeti olan kesici dişlerin rengi başlangıçta B3 mikrobrazyon sonrası A2 ve beyazlatma sonrası A1 idi. Hasta tedavi sonuçlarından memnun kaldı.Remineralizasyon jelinin iki hafta boyunca uygulanması mine hipomineralizasyonlarının boyutunu azaltmıştır. Mikroabrazyon ve evde beyazlatmanın birlikte kullanılması lezyonların azaltılmasında, estetik kaygıların ortadan kaldırılmasında daha etkilidir ve MIH\"li hasta için daha konforlu bir tedavi süreci sağlamıştır.Publication Metadata only Multiple diastemas closure with one-shade composite: A case report(2022-04-23) MANAV, AYBİKE; YILMAZ ATALI, PINAR; TÜRKMEN, CAFER; MANAV ÖZEN A., YILMAZ ATALI P., TÜRKMEN C.Publication Metadata only Effect of sodium ascorbate and delayed treatment on the shear bond strength of composite resin to enamel following bleaching(WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2016) TÜRKMEN, CAFER; Turkmen, C.; Guleryuz, N.; Atali, P. Y.Background: The effect of bleaching on enamel surfaces, as well as exploring methods of preventing the weakening of bond strength of two different adhesives to bleached enamel surfaces. Objective: This study compared the shear bond strength (SBS) of two different adhesives on bleached enamel immediately after bleaching, with a 1-week delay, and following application of an antioxidizing agent after bleaching. Materilas and Method: The enamel surfaces of 140 incisors were divided into 14 groups. Two unbleached enamel groups (n = 20) were prepared as negative controls of the Adper Single Bond 2 total-etch and Clearfil Tri S Bond self-etch adhesives. The remaining surfaces were randomly divided into two bleaching groups treated with 35% Beyond Max (n = 60) and 38% Opalescence Xtra Boost (n = 60). Each bleaching group was then divided into two subgroups using the total and self-etch adhesive systems. Specimens were bonded immediately after bleaching, after treatment with 10% sodium ascorbate (SA) gel, or after 1-week of immersion in artificial saliva. All groups were restored with composite resin. After thermocycling, SBS was measured and data were analyzed. Results: In the control groups, there was no statistically-significant difference in SBS between self-and total-etch adhesives. Among all bleaching groups, no statistically-significant differences in SBS were noted, although the SA-treated delayed bonding (1-week) groups had the highest values. The lowest values were noted for the groups bonded immediately after bleaching.Publication Metadata only Büyük azı keser hipomineralizasyonda minimal İnvaziv tedavi yaklaşımı ve klinik takipte dijital ve floresans yöntemlerin kullanımı(2022-12-17) YILMAZ ATALI, PINAR; TÜRKMEN, CAFER; TAĞTEKİN, DİLEK; Altuntaş E., YILMAZ ATALI P., TÜRKMEN C., TAĞTEKİN D.Publication Metadata only Bulk-fill kompozit rezinlerin antagonist çelik top ve CAD CAM blok karşısında aşınma dirençlerinin karşılaştırılması(2022-11-06) ŞENOL, AYŞE ASLI; KAHRAMANOĞLU, ERKUT; YILMAZ ATALI, PINAR; TÜRKMEN, CAFER; Altuntaş E., Öztürk S., Şenol A. A., Kahramanoğlu E., Yılmaz Atalı P., Türkmen C.Bulk-fill Kompozit Rezinlerin Antagonist Çelik Top ve CAD/CAM-Blok Karşısında Aşınma Dirençlerinin KarşılaştırılmasıEzgi Altuntaş1, Selinsu Öztürk1, Ayşe Aslı Şenol1, Erkut Kahramanoğlu2, Pınar Yılmaz Atalı1, Cafer Türkmen11Marmara Üniversitesi Diş Hekimliği Fakültesi, Restoratif Diş Tedavisi Anabilim Dalı2Marmara Üniversitesi Diş Hekimliği Fakültesi, Protetik Diş Tedavisi Anabilim DalıAMAÇKompozit rezinler, antagonist materyal tarafından mekanik kuvvetlere maruz kaldığında aşınmaktadır. Aşınma sonucu mekanik özellikleri azalmakta, bu nedenle uzun süreli klinik başarıları olumsuz etkilenmektedir. Bu çalışmanın amacı iki farklı bulk-fill kompozit rezinin çelik top ve cad/cam blok karşısında aşınma dirençlerinin karşılaştırılmasıdır.GEREÇLER ve YÖNTEMLERVisCalor-Bulk (VOCO) ve SonicFill 2 (Kerr) bulk-fill kompozitler ile4x10mm boyutlarında 32 adet kompozit disk hazırlandı. Kompozit diskler 20 saniye boyunca VALO (Ultradent) ile polimerize edildi. 4 farklı grene sahip cila diskleri ile cilaları tamamlandık sonra37°C distile suda 24 saat boyunca bekletildi. Örnekler randomize olarak kompozitlere göre 2 gruba ayrıldıktan sonra antagonist materyale göre de 2 alt gruba (n=8) ayrıldılar; Grup-1-VisCalor-Steel (VS), Grup-2-VisCalor-CAD (VC), Grup-3-Sonicfill-Steel (SS), Grup-4-Sonicfill-CAD (SC).Ağız ortamını taklit edebilmek için örneklere termal döngü (5-55°C) ile birlikte dual akslı çiğneme simülatöründe iki gövdeli aşınma testi (120,000 cycles, 49N) (C-S-4; SD-Mechatronik Company) uygulandı. Örnekler, yüklemeden önce ve sonra lazer tarayıcı (LAS-20, SD Mekatronik) ile tarandı. Geomagic programı kullanılarak gruplar arası hacimsel aşınma miktarı analiz edildi.Her gruptan rastgele seçilen bir örnek, taramalı elektron mikroskobu altında değerlendirildi. Veriler iki yönlü ANOVA testi ile incelendi(p=0.05).Publication Open Access Effect of Modeling Resins on Microhardness of Resin Composites(2021-07) KORKUT, BORA; Bayraktar, Ezgi T.; Atali, Pinar Y.; Korkut, Bora; Kesimli, Ezgi G.; Tarcin, Bilge; Turkmen, CaferAbstract Objectives This study was aimed to determine the effects of modeling resins on the surface microhardness of composites. Materials and Methods Six resin-based composites (Charisma Smart, Estellite Asteria, CeramX-One SphereTEC, Admira Fusion, Filtek Ultimate, and Clearfil Majesty Es-2) and three wetting agents (Modeling Liquid, Composite Primer, and Modeling Resin) were investigated. In all, 240 specimens were prepared, and wetting agents were applied prior to light curing in the experimental groups. After 24 hours, specimens were polished and Vickers microhardness (VHN) values were measured. Statistical Analysis Shapiro–Wilk and two-way analysis of variance (ANOVA) were used for analyses (p < 0.05). Results Both modeling resin and composites were determined to be effective factors (p < 0.001). The control group showed the highest VHN (70.37 ± 7.94), followed by Modeling Liquid (64.68 ± 12.07), Composite Primer (59.84 ± 6.33), and Modeling Resin (58 ± 3.52b; p < 0.001). Filtek Ultimate showed the highest VHN (76.62 ± 9.78c), whereas Charisma Smart (58.87 ± 7.95), and Clearfil Majesty (67.27 ± 2.58) showed the lowest (p < 0.001). Clearfil Majesty–Modeling Liquid (46.62 ± 5.33) and Charisma Smart–Composite Primer (50.81 ± 0.39) combinations showed the lowest VHN, whereas Filtek Ultimate–control (87.15 ± 2.12) and Filtek Ultimate–Modeling Liquid (84.24 ± 3.11) showed the highest (p < 0.001). Conclusion All tested modeling resins decreased VHN value, and the amount of reduction varied among composites and wetting agents. It might be safer not to use wetting agents unless they are necessary.Publication Metadata only Riboflavinin demineralize dentine uygulanmasının biomimetik remineralizasyon açısından optik koherens tomografi ile incelenmesi(2022-04-21) YILMAZ ATALI, PINAR; TÜRKMEN, CAFER; KARGÜL, BETÜL; Kükey P., Altuntaş E., Yılmaz Atalı P., Türkmen C., Kargül B.Investigation of Riboflavin as Biomimetic Mineralization on Demineralized Dentin by Optical Coherence TomographyPelin Kükey1, Ezgi Altuntaş1, Pınar Yılmaz Atalı1, Cafer Türkmen1, Betül Kargül21Marmara University, Faculty of Dentistry, Department of Restorative Dentistry, İstanbul, Turkey 2Marmara University, Faculty of Dentistry, Department of Pediatric Dentistry, İstanbul, TurkeyAim: Optical coherence tomography (OCT) has considerable potential as a non-invasive imaging technique for carious lesions as it eliminates the need for the removal of the superficial layer and eliminates radiation. The aim of this study was to assess the biomimetic remineralization capacity of Riboflavin for demineralized dentin samples using spectral-domain optical coherence tomography (SD-OCT).Materials and Methods: Twenty four dentin blocks were randomly divided into 6 groups as: 2% Riboflavin; Universal bonding agent (Optibond Universal, Kerr); Functional tricalcium phosphate (fTCP) (Clinpro TM 5000, 3M) ; Universal bonding agent+2% Riboflavin; fTCP + 2% Riboflavin; Remineralizing solution (Positive Control). The dentin samples were immersed in a demineralization solution maintained for 72 hours and remineralization agents were applied for 10 days. The optical depth of backscattered light of enamel was measured using Zeiss Cirrus HD SD-OCT 5000 (Carl Zeiss Meditec). SD-OCT analyzes were performed after demineralization and after remineralization procedures. The appropriate values that correspond to the visual boundary of dentin lesions were measured. Paired two-sample t-test was used to compare the application within the groups (p<0.05)Results: At the baseline (after demineralization), there was no statistically significant difference in the optical lesion depths of the dentin blocks in the six groups (p=0.487). The reflectivity and the optical lesion depth decreased after remineralization in all groups. A significant decrease in the depth of optical lesion on the dentin surfaces in all groups was observed following the remineralization (p<0.05) except adhesive application (p>0.05)Conclusion: Within the limitations of this study, the surface treatment with Riboflavin provided biomimetic dentin remineralization. Further investigations are needed on Riboflavin as a potential innovative bioactive material of dentine remineralization as minimal intervention which is an important concept in clinical restorative dentistry.Keywords: biomimetic mineralization, riboflavin, tri-calcium phosphate, optical coherence tomography (OCT)Publication Metadata only Effect of Polyethylene Fiber on Fracture Resistance of Bulk-fill Composites(2023-07-03) MANAV, AYBİKE; DOĞU, BENGÜ; YILMAZ ATALI, PINAR; KAHRAMANOĞLU, ERKUT; ŞENOL, AYŞE ASLI; TARÇIN, BİLGE; TÜRKMEN, CAFER; MANAV ÖZEN A., DOĞU KAYA B., YILMAZ ATALI P., KAHRAMANOĞLU E., ŞENOL A. A., TARÇIN B., TÜRKMEN C.Introduction: The aim of this in vitro study was to evaluate the fracture resistance of sonic-activated SonicFill3 (SF) (Kerr) and flowable Charisma Bulk Flow ONE (CO) (Kulzer) bulk-fill composites with or without polyethylene-fiber (R) (Ribbond) application. Materials and Methods: Class I cavities (2x2x4mm) were prepared on 40 freshly extracted human premolars of similar size and classified randomly into 4 groups (SF, SF+R, CO, CO+R). The remaining wall thicknesses of the teeth was confirmed to be 2mm. Ribbond fiber (2x2mm) was applied to cavity bases of the acryl-embedded teeth according to manufacturers’ instructions and OptiBond (Kerr) (for SF, SF+R groups) and Gluma Bond (Kulzer) (for CO, CO+R groups) universal adhesives were used. All specimens were restored in a 4mm monolayer with SF and CO. Valo Cordless (Ultradent) LED-curing unit with a power output of 1000 mW/cm2 was preferred for polymerization. Finishing and polishing were completed with the last 2 stages of Sof-Lex discs (Kerr). Restored teeth were stored in distilled water at 37°C for 24 hours. Fracture resistance (FS) and elastic modulus (EM) values were measured with a universal testing device (Shimadzu AG-X, Shimadzu Corp, Japan). Data were analyzed with IBM SPSS V23 using Independent samples T-test. The significance level was set at p<0.05. Results: No statistically significant difference was found between the bulk-fill composites (SF and CO) without R (p=0.167). Similarly, no significant difference was detected between the Ribbond fiber applied groups (SF+R and CO+R) (p=0.994). The effect of fiber application on FS of SF (p=0.421) and CO (p=0.552) was not statistically significant. The mean maximum force values (newtons) in decreasing order were CO (761.09±224.32) > SF+R (671.08±150.51) > CO+R (669.95±358.44) > SF (580.7±269.04). The EM values of SF and CO were statistically significantly different (p=0.009). A statistically significant difference was observed between the EM values in the Ribbond fiber applied groups (SF+R and CO+R) (p=0.026). EM values of CO were statistically significantly higher regardless of Ribbond application (p<0.001). Conclusion: Within the limitations of this in vitro study, the application of SonicFill3 and Charisma Bulk Flow ONE composites with Ribbond may be an option for clinical applications. Keywords: bulk-fill composite, elastic modulus, fracture resistance, polyethylene fiberPublication Metadata only Başlangıç mine lezyonlarında rezin infiltrasyon öncesi remineralizasyon ajanlarının kullanımının in-vitro incelenmesi(2022-11-06) DOĞU, BENGÜ; MANAV, AYBİKE; YILMAZ ATALI, PINAR; ALKAN, ELİF; TAĞTEKİN, DİLEK; TÜRKMEN, CAFER; DOĞU KAYA B., MANAV A., YILMAZ ATALI P., SARIALİOĞLU GÜNGÖR A., DALKILIÇ E., ALKAN E., ALKAN E., ALKAN E., TAĞTEKİN D., TÜRKMEN C.