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Now showing 1 - 10 of 16
  • PublicationMetadata only
    The Quality of Internet Information About Tooth Hypersensitivity in Turkish Language With Discern And JAMA
    (2020-11-13T00:00:00Z) Müdüroğlu Adıgüzel, Ruhsan; Değer, Ceren; DEĞER, CEREN
  • PublicationMetadata only
    Repair Bond Strength of Hybrid CAD/CAM Materials After Silane Heat Treatment with Laser
    (2022-05-28T00:00:00Z) Değer, Ceren; Oğlakçı, Burcu; Özduman, Zümrüt Ceren; Dalkılıç, Evrim; DEĞER, CEREN; OĞLAKÇI, BURCU; ÖZDUMAN, ZÜMRÜT CEREN; DALKILIÇ, EVRIM
  • PublicationMetadata only
    Effects of Experimental Nanohydroxyapatite and Er:YAG Laser on Dentin Hypersensitivity
    (2022-09-15T00:00:00Z) Şahin, Demet; Değer, Ceren; Oğlakçı, Burcu; Demirkol, Metehan; Küçükyıldırım, Bedri Onur; Gürsel, Mehtikar; Dalkılıç, Evrim; ŞAHİN, DEMET; DEĞER, CEREN; OĞLAKÇI, BURCU; GÜRSEL, MEHTİKAR; DALKILIÇ, EVRIM
  • PublicationMetadata only
    Effects of Vitamin C on Surface Roughness, Microhardness and Color Stability of Composite Resins
    (2021-09-16T00:00:00Z) Sarıalioğlu Güngör, Ayça; Değer, Ceren; DEĞER, CEREN
    Objectives: The study assessed the changes in color stability, surface roughness and microhardness of three esthetic composite-resin materials after immersed in different effervescent vitamin C tablets.Methods: Three different types of composite resins were investigated: supra-nano hybrid composite, microfilled hybrid composite, and nanofilled composite resins. Ninety disc-shaped specimens (4-mm diameter, 2-mm thickness) were fabricated using Teflon mold and divided into three groups according to the immersion solution (Redoxon, Sambucol, and distilled water as control) for both composite resins (n=10). The top surface of specimens was ground with 600 grit silicon carbide paper for the standardization. Each group was immersed in the solutions for 24 hours. Surface roughness (Ra, mm) was measured by contact profilometer, while the hardness was measured by Vickers hardness (HV) test. CIE L*a*b* coordinates were recorded by using spectrophotometer and color difference analysis (ΔE) was made using the CIEDE-2000 formula. Data were statistically analyzed using two-way ANOVA and Bonferroni correction test (p<0.05).Results: No significant differences in surface roughness change were recorded according to the immersion solutions for both composite resin groups (p>0.05). However, there were significant differences in ΔHV of all composite resins among the control group and the effervescent vitamin C tablets (p<0.001). Highest microhardness decrease was obtained in supra-nano hybrid composite specimens when immersed in Redoxon (-8.49±1.62). Statistically significant differences (p<0.001) were found between the composite specimens immersed in the solutions in terms of ΔE values. Redoxon appeared to be associated with the most severe alteration in color (4.86±0.63).Conclusions: Using vitamin C effervescent tablets did not have a significant change in the surface roughness values of the composite resins. However, microhardness values of all composite resin specimens were reduced. Clinically unacceptable discoloration was observed only in micro-filled hybrid composite specimens immersed in Redoxon.
  • PublicationMetadata only
    Farklı Beyazlatıcı Diş Macunlarının Kompozit Rezinlerin Yüzey Pürüzlülüğüne Etkisinin Incelenmesi
    (2020-01-01T00:00:00Z) Değer, Ceren; Müjdeci, Arzu; DEĞER, CEREN
  • PublicationMetadata only
    Effect of Povidone-Iodine and Hydrogen-Peroxide Mouthwashes on Shear Bond Strenth to Enamel
    (2021-04-22T00:00:00Z) Doğan, Miraç; Değer, Ceren; Özduman, Zümrüt Ceren; Oğlakçı, Burcu; Dalkılıç, Evrim; DOĞAN, MİRAÇ; DEĞER, CEREN; ÖZDUMAN, ZÜMRÜT CEREN; OĞLAKÇI, BURCU; DALKILIÇ, EVRIM
    Aim: During COVID-19 pandemic, use of different mouthwashes have been recomended toreduce the viral load. Aim of this study is to compare the effect of different mouthwashes onshear bond strength of a universal adhesive in regard to self-etch (SE) and etch and rinse (ER)application modes.Materials and Methods: 100 sound human maxillary central incisors were selected. Flat enamelsurfaces were obtained. Specimens were randomly assigned to 5 groups (n=20) [Control, 1.5%hydrogen-peroxide(H2O2), 0.2% povidone-iodine (PVP-I), Listerine, Chlorhexidine (CHX)]. Then,each group was divided into two subgroups according the application mode of the useduniversal adhesive (Single Bond Universal) (n =10). After adhesive procedures, resin compositewas applied by a Teflon mold (2mm height, 2.4mm diameter) and light polymerized. Shear bondstrength was tested with a Universal testing machine after water storage for 24 h. The debondedareas were examined for failure mode analysis with a stereomicroscope at 25×magnifications.The data were statistically analyzed by two-way ANOVA and Bonferroni test (p<0.05).Results: Etch and rinse application mode of the adhesive system led to higher shear bond strengthsthan self-etch application mode, regardless of the preoperational antiseptic mouthwashes used(p<0.001). The lowest shear bond strength values among all the tested groups were measuredfor H2O2/SE group (3.77±1.37MPa). The control group (where no mouthwash was used) exhibitedthe highest SBS values (26.43±4.35MPa) in SE mode (PVP-I/SE=8.70±1.92, Listerine/SE=9.99±2.90;CHX/SE=17.67±4.37MPa) (p<0.05). PVP-I/ER group (24.04±5.01MPa) showed no significantdifference with H2O2, CHX, Listerine and control groups in ER mode (21.40±3.67, 28.30±6.03,29.61±4.78, 31.48±7.45) (p>0.05). H2O2 presented lower shear bond strength (21.40±3.67MPa) thanother mouthwashes in ER mode (p<0.05). The adhesive failure mode was predominant for allgroups.Conclusion: The antiseptic mouthwashes decreased the enamel bond strength of the universaladhesive used in self-etch application mode, however only H2O2 reduced the enamel bondstrength in both application modes.Keywords: hydrogen peroxide, mouthwash, povidone iodine, shear bond strength, chlorhexidine
  • PublicationMetadata only
    Whitening Dentifrices: A Review
    (2020-12-01T00:00:00Z) Değer, Ceren; Müjdeci, Arzu; DEĞER, CEREN
  • PublicationOpen Access
    How does antiseptic mouthwashes against SARS-COV-2 affect the bond strength of universal adhesive to enamel?
    (2021-12-01T00:00:00Z) Özduman, Zümrüt Ceren; Oğlakçı, Burcu; Doğan, Miraç; Değer, Ceren; Dalkılıç, Evrim; ÖZDUMAN, ZÜMRÜT CEREN; OĞLAKÇI, BURCU; DOĞAN, MİRAÇ; DEĞER, CEREN; DALKILIÇ, EVRIM
  • PublicationMetadata only
    Shear-Bond Strength of Glass Ionomer-Based Materials to Calcium Hydroxide Liner
    (2022-09-15T00:00:00Z) Fazlıoğlu, Leyla; Özduman, Zümrüt Ceren; Oğlakçı, Burcu; Değer, Ceren; Dalkılıç, Evrim; FAZLIOĞLU, LEYLA; ÖZDUMAN, ZÜMRÜT CEREN; OĞLAKÇI, BURCU; DEĞER, CEREN; DALKILIÇ, EVRIM