FARKLI POLİSAJ UYGULAMALARI SONRASINDA, KOMPOZİTLERİN YÜZEY KONTAKT (TEMAS) AÇISININ BELİRLENMESİ

Abstract

ABSTRACT Objective: In this study, it was proposed that to determination of effect of four different polishing applications on surface contact angle of composite samples after polimerizing with a halogen light unit. Method: In the study, a hybrid composite resin (Filtek-Z250) was used. The composite resin samples (with “10mm diameter x 2mm highness” sizes) were prepared in cylindirical teflon molds and they were polymerized with a halogen light unit. Then they were ground with a carborundum paper with 600 grid. Four different polishing procedures were applied on surfaces of samples; 1-Kerr-Hawe polishing discs set, 2-BisCover-LV light-polimerized polishing burnish, 3- Enhance; Prisma Gloss polishing pat/finishing discs/rubber, 4- Enhance; Prisma Gloss Extra-Fine polishing pat/finishing discs/rubber (n=7). “Contact-Angle Measurement Device” (Easy Drop Gonyo-meter, Kruss, Hamburg, Germany) was used to measure the contact angles of samples. The right and left contact angles of each drop were measured with “droplet method” and mean ranges were calculated. Data was determined with Two-Way Variance-Analyse and Dunnet-T3 Multi-Comparison-Test statistically (p<0,05). Results: There was statistical difference between polishing procedures (p<0,05). The lowest surface contact angle values were gained with Enhance; Prisma Gloss polishing pat/finishing discs/rubber set, and the highest surface contact angle values were obtained with BisCover-LV light-polimerized polishing burnish. Discussion: In this study, generally, it was observed in composite samples polimerized with halogen light unit that, the lowest surface contact angle was found with a polishing pat/finishing discs/rubber set and the highest surface contact angle was got with a polishing burnish applied alone. Key words: Adhesive Restorative Materials, Adhesion to teeth, Surface energetics in adhesion.