Person: DALKILIĆ, EVRIM
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Publication Metadata only The color change of a novel single-shade composite immersed in different beverages.(2022-12-01) FazlıoÄlu L.; OÄlakƧı B.; Ćzduman Z. C.; DalkılıƧ E.; FAZLIOÄLU, LEYLA; OÄLAKĆI, BURCU; ĆZDUMAN, ZĆMRĆT CEREN; DALKILIĆ, EVRIMPublication Metadata only The Effect of Different Intermediary Layer Materials Under Resin Composite Restorations on Volumetric Cuspal Deflection, Gap Formation, and Fracture Strength.(2022-11-28) Deger C.; Ćzduman Z. C.; Oglakci B.; Eliguzeloglu Dalkilic E.; DALKILIĆ, EVRIMPublication Metadata only The Effect of Curing Modes and Times of Third-Generation Led LCU on the Mechanical Properties of Nanocomposites(2022-09-01T00:00:00Z) OÄLAKĆI, Burcu; Ozlen, Rumeysa Hatice Enginler; DEMÄ°RKOL, Metehan; ĆZDUMAN, ZĆMRĆT CEREN; KĆĆĆKYILDIRIM, Bedri Onur; DALKILIĆ, Evrim; OÄLAKĆI, BURCU; ĆZDUMAN, ZĆMRĆT CEREN; DALKILIĆ, EVRIMThis study evaluates the effect of curing modes and times on the mechanical properties of nanocomposites. Two nanocomposite resins were investigated: supra-nanohybrid (Estelite Posterior Quick; EP) and nanohybrid (Solare X; SX). They were polymerized with a light-emitting diode light-curing units (LED LCU, Valo) as follows: standard mode for 20s (ST20), high power mode for 12s (HP12), high power mode for 20s (HP20), extra power mode for 6s (XP6), and extra power mode for 20s (XP20). For Vickers microhardness (HV), disc-shaped specimens were fabricated (n=10). For the three-point bending test, bar-shaped specimens were fabricated (n=10). Flexural strength and resilience modulus were calculated. The fractured surfaces and specimen surfaces of composites were observed using scanning electron microscopy. The data were analyzed with repeated measures ANOVA, two-way variance, and Bonferroni tests (p<0.05). On the top and bottom surfaces of the EP nanocomposite resin, ST20 and HP12 revealed statistically higher HV than with XP6. Moreover, HP20 and XP20 had statistically higher HV than HP12 and XP6. For the SX nanocomposite resin, HP20 had statistically higher HV than HP12. For EP and SX, there were no significant differences in flexural strength and resilience modulus regarding the curing modes and times. Furthermore, SX demonstrated lower mechanical properties than EP. Scanning electron microscopy indicated that both nanocomposites had similar surface appearances. However, with all curing modes and times, SX exhibited layered fractures and more crack formations than EP. Different curing modes and times could influence the microhardness of nanocomposites.Publication Metadata only Fracture Resistance and Failure Modes of Lithium Disilicate or Composite Endocrowns(2018-07-01T00:00:00Z) Altıer, Muhammed; Erol, Funda; Yıldırım, Gulhan; DALKILIĆ, EVRÄ°M; DALKILIĆ, EVRIMPurpose: The aim of this study was to determine the fracture strength of endocrowns made of lithium disilicate ceramic and two different indirect resin composites. Materials and Methods: Forty human mandibular molars were randomly separated into four groups (n = 10 in each group) -Group IN: control group, Group IPS: endocrowns made of lithium disilicate ceramic (IPS e. max CAD, IvoclarVivadent, Schaan, Liechtenstein); Group SL: Endocrowns made of Solidex microhybrid composite (Shofu, Ratingen, Germany); and Group GR: Endocrowns made of Grandia microhybrid composite (GC Europa, Leuven, Belgium). In all of the groups, dual-cure resin cement (Relyx Ultimate Clicker, 3M ESPE, St. Paul, MN, USA) was used to cement the endocrowns. All of the teeth were subjected to fracture by means of a universal testing machine (Instron), and compressive force was applied. The failure type and location after fracture were classified. The data were analyzed using one-way ANOVA, Tukey-s post hoc test, and Chi-square test (P 0.05). In Group SL, 80% of the specimens exhibited favorable fractures; also, 60% of the specimens exhibited favorable fracture in group GR, and only 10% of the specimens exhibited favorable fracture in group IPS. Conclusions: The lithium disilicate ceramic endocrowns exhibited higher fracture resistance than indirect composite groups. Both of the composite endocrowns showed more favorable failure than the lithium disilicate ceramic endocrowns.Publication Metadata only Influence of powdered dentin on the shear bond strength of dentin bonding systems(2012-09-01T00:00:00Z) Dalkilic, EVRÄ°M; Genc, Ozgur; Ozcopur, Betul; Belli, Sema; Eskitascioglu, Gurcan; Oezcan, Mutlu; DALKILIĆ, EVRIMThis study evaluated the effect of different amounts of dentin powder (DP) mixed in Clearfil SE Bond (CSB) or Single Bond (SB) on adhesion to dentin. Human third molars (n=96) were sectioned to expose the mid-coronal dentin and divided into eight experimental groups (n=12 per group), namely, Group 1: CSB, Group 2: CSB+1.5 mg DP, Group 3: CSB+3 mg DP, Group 4: CSB+4.5 mg DP, Group 5: SB, Group 6: SB+1.5 mg DP, Group 7: SB+3 mg DP, and Group 8: SB+4.5 mg DP. Filtek Z250 composite was bonded onto dentin, and all specimens were subjected to shear bond strength test at a crosshead speed of 1 mm/min. Highest bond strength was obtained in Groups 1, 2, and 3 (15.1, 13.5, and 16.4 MPa respectively; p>0.05) and the lowest in Groups 6, 7, and 8 (5.5, 5.6, 4 MPa; p>0.05). DP addition, regardless of amount, adversely affected the bond strength of SB. Bond strength of CSB was not affected when 1.5 or 3 rag of DP was added.Publication Metadata only Two-year clinical evaluation of three adhesive systems in non-carious cervical lesions(2012-03-01T00:00:00Z) Dalkilic, EVRÄ°M; Omurlu, Huma; DALKILIĆ, EVRIMObjectives: Adhesive systems are continuously being introduced to Dentistry, unfortunately often without sufficient clinical validation. The aim of this study was to evaluate the clinical performance of cervical restorations done with three different adhesive systems. Material and Methods: 158 non-carious cervical lesions of 23 patients were restored with a nanofilled composite resin (Filtek Supreme, 3M/ESPE) combined with Single Bond (3M/ESPE, group SI), Clearfil SE (Kuraray Medical Inc., group CL) and Xeno III (De Trey Dentsply, group XE). In groups SI-B, CL-B and XE-B, the outer surface of the sclerotic dentin was removed by roughening with a diamond bur before application of the respective adhesive systems. In groups CL-BP and XE-BP, after removal of the outer surface of the sclerotic dentin with the bur, the remaining dentin was etched with 37% phosphoric acid and the self-etch adhesive systems Clearfil SE and Xeno III were applied, respectively. Lesions were evaluated at baseline, and restorations after 3 months, 1 year and 2 years using modified USPHS criteria. Results: After 2 years, no significant difference was found between the retention rates of the groups (p>0.05). Although groups CL and SI showed significantly better marginal adaptation than group XE (p0.05). After 2 years no significant difference was observed among the marginal staining results of all groups (p>0.05). Conclusion: Although all adhesive systems showed similar retention rates, Clearfil SE and Single Bond showed better marginal adaptation than Xeno III after 2 years of follow-up.Publication Metadata only Assessment of antibacterial efficacy of novel remineralizing varnishes on dentin caries(2023-12-05) DeÄer C.; DalkılıƧ E.; SaÄıroÄlu A. A.; ĆztĆ¼rk Ä°.; TekintaÅ Y.; DEÄER, CEREN; DALKILIĆ, EVRIMPublication Metadata only Engin IÅık, ĆaÄla YeloÄlu, AyÅenur TunƧ Dicle, Evrim EligĆ¼zeloÄlu DalkılıƧ Ćn Isıtma ve Polimerizasyon DerinliÄinin Bulk-Fill Kompozitlerin Fiziksel Ćzellikleri Ćzerine Etkileri(2023-10-27) IÅık E.; YeloÄlu Ć.; TunƧ A.; DalkılıƧ E.; IÅIK, ENGÄ°N; YELOÄLU, ĆAÄLA; TUNĆ, AYÅENUR; DALKILIĆ, EVRIM