Person: DOĞU, BENGÜ
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DOĞU
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BENGÜ
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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 Open Access Tarihi geçmiş ompozit rezinleri kullanmak mümkün mü? : FTIR analizi(2023-01-01) DOĞU, BENGÜ; ŞENOL, AYŞE ASLI; TARÇIN, BİLGE; YILMAZ ATALI, PINAR; ÖZMEN S., DOĞU KAYA B., ŞENOL A. A., KORKUT B., TARÇIN B., YILMAZ ATALI P.Amaç: Bu çalışmanın amacı; son kullanma tarihleri 1 yıl, 2 yıl ve 3 yıl geçmiş rezin kompozitlerin (RK) dönüşüm derecelerini karşılaştırarak kullanımlarındaki güven aralığını değerlendirmektir. Materyal ve Metod: Üç farklı RK'den (Herculite XRV-Ultra A2-dentin, son kullanma tarihi 3 yıl ve 1 yıl geçmiş; Herculite Classic A2, son kullanma tarihi 2 yıl geçmiş; Kerr) 9 adet disk (8 x2 mm) hazırlandı (n=3). RK silikon kalıplara yerleştirildi, her iki tarafı şeffaf bantlar ile kapatıldı ve LED ışıklı cihaz ile (Valo, Ultradent) ile 20 sn parmak basıncı altında polimerizasyonu takiben numuneler 37°C'de 24 saat distile suda bekletildi. Dönüşüm derecesini (%DC) belirlemek için Fourier Dönüşümü Kızılötesi Spektrometre (FT-IR, JASCO) ile örnekleme kullanılarak polimerize olmuş ve olmamış kompozitler üzerinde spektral analizler yapıldı. Ortaya çıkan FT-IR spektrumu, 20 °C ortam sıcaklığında 4000–400 cm-1 spektral aralığında kaydedildi; kullanılan çözünürlük dört tarama ile 4 cm-1 ’dir. Veriler SPSS (SPSS Inc.) ile tek yönlü varyans analizi (ANOVA) ve Tukey testleri kullanılarak analiz edildi. Anlamlılık düzeyi p<0,05 olarak alındı. Bulgular: En yüksek ortalama %DC, 1 yıllık son kullanma tarihi geçmiş RK grubu için kaydedilirken (H-6: 68,80 ± 4,544), bunu 2 yıllık son kullanma tarihi geçmiş RK grubu (H- 12: 68,268 ± 2,695) takip etmiştir. En düşük ortalama %DC 3 yıl üstü RK grubu için kaydedilmiştir (H-24: 68.032 ± 4.641). Üç grup arasında %DC değerleri açısından istatistiksel olarak anlamlı bir fark bulunmadı (P=0,096). Sonuç: Bu çalışmanın sınırları dahilinde; son kullanma tarihleri üzerinden 1, 2 ve 3 yıl geçmiş kompozitler benzer %DC sonuçları gösterdi. Klinisyenlerin, üreticiler tarafından önerilen son kullanım tarihi talimatlarını takip etmeleri gerekmektedirPublication Metadata only Digitally Guided Composite Restorations After Orthodontic Treatment: A Case Report(2023-07-03) BİLGİN GÖÇMEN, GÜLÇİN; DOĞU, BENGÜ; OĞRAK İ. H., BİLGİN GÖÇMEN G., DOĞU KAYA B.Introduction: Orthodontic treatment can improve dental aesthetics and function, but it can also lead to dental problems, such as interproximal caries and tooth fractures. This case report presented the dental treatment of a 25-year-old female patient who had previously undergone a fixed orthodontic treatment for five years and resorted to Marmara University Department of Restorative Dentistry due to aesthetic concerns. The patient complained about interproximal caries and a fracture of the right maxillary lateral incisor, which negatively impacted her dental aesthetics and function. After a thorough clinical and radiographic examination, a treatment plan which included composite restorations for the interproximal caries and the fractured lateral incisor was created. Case Report: In the first session office bleaching was performed with 32% hydrogen peroxide gel (Fläsh; WHITEsmile, 3×15 minutes). Before starting the restorative treatment, palatal wall was designed using a software (Meshmixer, Autodesk). The software allowed for a virtual simulation of the desired palatal walls, which was then final guide model produced using a DLP 3D printer (Photon Ultra, Anycubic). Two weeks after bleaching, composite resin restorations were completed with body shade composite (Estelite Asteria A1B, Tokuyama Dental) under rubber-dam isolation. Universal adhesive (Bond Force II, Tokuyama Dental) was preferred and polymerization was completed with 1000 mW/cm2 lightcuring unit (Valo Grand, Ultradent). Finishing and polishing procedures was carried out using composite polisher (Lamello, Horico Dental). Follow-up sessions were conducted at 1 week, 1 month, and 6 months and evaluated for World Dental Federation (FDI) 2-steps criteria. Results: The clinical performance of the treated teeth evaluated for aesthetic properties, surface texture/staining, colour stability/translucency and anatomic form according to FDI criteria and scored as 1. Conclusion: The successful outcome of this case demonstrates the effectiveness of composite resin restorations for addressing functional, aesthetic, and satisfactory concerns. The use of modern technology, including digital design and 3D printing, allowed for improved accuracy and customization, resulting in a natural-looking and durable restoration. Keywords: 3D Printing, Composite Resin Restoration, Dental Caries, Dental Models, Digital DesignPublication Metadata only Class IV composite restorations of central Incisors: One-shade vs multishade, case series(2022-04-23) DOĞU, BENGÜ; TARÇIN, BİLGE; YILMAZ ATALI, PINAR; DOĞU B., YILMAZ ATALI P., TARÇIN B.Aim: Fractures or deformities are common in central incisors. The aim of this case series was to compare and evaluate incisal/class IV restorations using 3 different composites: OptiShade (Kerr), Amaris (Voco), and Ceram-X Duo (Dentpsly-Sirona). Case Description: 3 patients with the complaint of fractures on their anterior teeth were applied to the clinics of Restorative Dentistry Department (Case1 18-year-old female, Case 2 20-year-old female, and Case 3 17-yearold male). Following radiographic and clinical examinations, enamel fracture was detected in the incisal 1/3 of the central incisors and it was decided to perform direct composite resin restorations (CRR) as the treatment plan. 37% orthophosphoric acid (Kerr) was used in selective-etch mode. 3 different universal adhesive agents (OptiBond Universal, Kerr; Futurabond U, Voco; and Prime&Bond Universal, Dentsply-Sirona) were applied to the cavities according to manufacturer’s instructions. CRRs were completed with nano-hybrid (Amaris TL and D2, Voco), one-shade (OptiShade Light and Medium, Kerr), and ceramic reinforced (Ceram-X Duo D2 and E1, Denstply-Sirona) composites using incremental technique. Valo-Cordless (Ultradent) was used for polimerisation with 1000 mW/cm2. Finishing and polishing procedures were performed with polishing discs (Bisco) and Twist Dia (Kuraray) polishing wheels. Patients were recalled at 1 and 3-months for clinical evaluation and scores according to FDI criteria. Results: The esthetic, functional and biological evaluation of the restorations according to the FDI criteria in 1 and 3-months follow-up were scored as 1. Discussion: One shade universal composite provide advantage in color selection for the clinician, however composites with different contents and brands vary in opacity, color, and brightness. Considering the esthetic expectation of the patients and the longevity of class IV CRR, the material should be selected considering the shape, color and fracture line of the tooth structure and the optic properties of the material.Publication Metadata only Raf ömrünü doldurmuş farklı organik apıdaki bulk-fill rezin kompozitlerin bükülme -dayanımı ve llastik modüllerinin değerlendirilmesi(2023-12-09) KUZU, NAZLI ZEYNEP; YILMAZ ATALI, PINAR; DOĞU, BENGÜ; KUZU N. Z., YILMAZ ATALI P., DOĞU KAYA B., ÖZTÜRK S., BOZOVA Ö., CAN B., UĞUR D.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.Publication Metadata only Klinik pratikte kullanılan yeni rezin kompozitlerin bükülme dayanımı ve dönüşüm derecelerinin karşılaştırılması(2022-11-06) DOĞU, BENGÜ; YILMAZ ATALI, PINAR; TARÇIN, BİLGE; Öztürk S., DOĞU KAYA B., YILMAZ ATALI P., TARÇIN B.