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Comparison of translucency and flexural strength of fiber-reinforced composite resin materials

Özcan KARATAŞ

Aim: The purpose of this study was to compare translucency values and flexural strength of composite resin materials reinforced with two different fibers.Materials and Methods: In this study, two direct composites (Clearfil Majesty Esthetic and Posterior) and an indirect composite (Tescera) used with a non-fiber control group and two fiber-reinforced (EverStick glass fiber and Ribbond polyethylene fiber) composite groups. Thirty specimens were obtained from the entire composites with dimensions of 25×2×2mm3. Translucency parameter values of the specimens were obtained using a spectrophotometer ...Daha fazlası

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The Effect Of Staining And Bleaching On The Microhardness, Surface Roughness And Color Of Different Composite Resins

Özcan KARATAŞ

Background: There are studies that examined the effect of staining on the surface properties of composite resins, using different solutions and bleaching applications. However, the effect of both staining and bleaching on the same composite specimens is an issue that needs to be investigated. Objectives: The aim of this study was to investigate the surface microhardness, roughness and color changes (ΔE) of 2 different composite resins after staining and bleaching. Material and methods: A microhybrid and a nanohybrid composite were used in the study. One hundred and fifty specimens were prepare ...Daha fazlası

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The effects of different antioxidant agents on the microtensile bond strength of composite resin to bleached enamel

Özcan KARATAŞ

The objective of this in vitro study is to examine the effect of antioxidants on the bonding strength of composite resin to bleached enamel. One hundred twenty non decay teeth were used in this study. Specimens were cut from the enamel cement junction. Then the specimens were randomly assigned into two groups-office bleaching and home bleaching. Bleaching antioxidants were applied to the first 12 subgroups. The specimens in the remaining 12 groups were kept in artificial saliva for 14 days and antioxidants were applied. Composite resin restoration was applied to all specimens. A cutting device ...Daha fazlası

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The effect of prophylaxis paste and air‑powder polishing on color stability and surface roughness of different composite resins

Özcan KARATAŞ | Turan Emre KUZU

Aim: This study examined the impact of periodontal prophylaxis paste and air‑powder treatment on nano‑ and microhybrid composite resin surface roughness and color change. Materials and Methods: Thirty specimens were prepared from a nanohybrid and a microhybrid composite resin. The specimens were distinct into three subgroups, and the first color measurements were done. Then, a periodontal prophylaxis paste was applied to one of the subgroups prepared from each composite, and air‑powder polishing was applied to the second subgroups, and specimens in the third subgroup were kept in distilled wat ...Daha fazlası

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