Burcu DİKİCİ, ELİF TÜRKEŞ BAŞARAN, Esra CAN

Farklı yüzey hazırlık işlemlerinin rezin bazlı, polimer infiltre seramik ve feldspatik cad/cam materyallerinin yüzey pürüzlülüğüne etkisi

Amaç: Bu çalışmanın amacı farklı yüzey hazırlama işlemlerinin rezin bazlı, polimer infiltre seramik ve feldspatik bazlı CAD/ CAM materyallerinin yüzey pürüzlülüğüne etkisini incelemektir. Gereç ve Yöntem: Rezin bazlı (Lava; 3M ESPE ve Cerasmart; GC), polimer infiltre seramik (Enamic; Vita) ve feldspatik seramik (Cerec; Sirona Dentsply) CAD/CAM bloklar 2 mm kalınlıkta örneklere ayrıldı ve her bir CAD/CAM materyalinden 30’ar adet örnek elde edildi. Rezin bazlı CAD/CAM blokları kendi içinde cila, kontrol (kumlama (SB)), kombine uygulama (kumlama+hidroflorik asit (SB+HF)); seramik bazlı CAD/CAM blokları ise cila, kontrol (hidroflorik asit (HF)), kombine uygulama (SB+HF) olmak üzere 3’er alt gruba ayrıldı (n=10). Cila grubunda örnekler 1200 gritlik SiC zımparaya kadar cilalandı. Kumlama grubunda örnekler 50 µm alüminyum oksit ile kumlanırken, HF asit grubunda örnekler %5’lik HF asit (Ultradent) ile 60 sn asitlendi. Kombine gruplarda örnekler kumlama işlemini takiben asitlendi. Tüm örneklerin yüzey pürüzlülük değerleri (Ra) profilometre cihazı (Perthometer M1 Mahr) kullanılarak ölçüldü. Sonuçlar one way ANOVA ve post hoc Tukey testleri ile değerlendirildi (p

The effect of surface preparation methods on the surface roughness of resin based, polymer infiltrated ceramic and feldspatic CAD/CAM materials

Aim: The aim of this study was to determine the effect of surface preparation methods on the surface roughness of resin based, polymer infiltrated ceramic and feldspatic CAD/CAM materials. Materials and Method: Two types of resin based CAD/CAM materials (Lava; 3MESPE and Cerasmart; GC), polymer infiltrated ceramic (Enamic; Vita), and feldspatic ceramic (Cerec; Sirona, Dentsply) blocks were cut into slabs of 2 mm thickness and 30 specimens were obtained from each CAD/CAM blocks. While resin based blocks were divided into three subgroups as untreated, control (sandblasting (SB)), combined (sandblasting+ hydrofluoric acid (SB+HF)); ceramic groups were divided into three subgroups as untreated, control (HF etch), combined ((SB+HF)). In untreated groups, specimens were polished up to 1200 grit SiC paper while sandblasted with 50 µm aluminum oxide in SB groups. In SB+HF groups, the specimens were sandblasted and etched. Surface roughness (Ra) were measured using digital profilometer (Marh, Perthometer M2). Statistical analysis was performed using One-way ANOVA and post hoc Tukey test. Results: The lowest Ra value was obtained with untreated Cerec blocks while Enamic resulted in significantly highest Ra value (p

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