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The purpose of this study was to investigate the effect of different surface treatments on the bond strength (σ) of repaired, aged resin composites (ARC).Forty blocks of Filtek Z250™ (Z2) and Filtek Supreme™ (SU) were made, stored in deionized water for 9 days, and randomly assigned to different surface treatment groups: hydrofluoric acid etching (HA), abrasion using a coarse diamond bur (AB), sandblasting...
The aim of the present study was to evaluate the flexural strength and the Weibull modulus of a microhybrid and a nanofill composite by means of 3- and 4-point bending tests.Thirty specimens of Filtek Z250™ (3M/ESPE) and Filtek Supreme™ (3M/ESPE) were prepared for each test according to the ISO 4049/2000 specification. After 24h in distilled water at 37°C the specimens were submitted to 3- and 4-point...
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