Effects of different surface treatments on the compression-shear strength of CAD-CAM zirconia posts

Aim: Post systems are crucial for the treatment of endodontically treated teeth with excessive crown destruction. Currently, increase in esthetic demands has increased use tooth-colored post systems. The aim this study was to evaluate compression-shear strength after application different resin cements and surface treatments zirconia post-cores produced by CAD-CAM milling technique. Methodology: One hundred twenty parts maxillary central incisors were cut using a 2-mm enamel–cement joint water-cooled diamond bur an air turbine handpiece at 300,000 rpm. Root canals same diameter prepared Gates-Glidden drills Snowpost system drills. According enlarged canal, posts copy-milling technique, surfaces roughened techniques (hydrofluoric acid, Al2O3 partial abrasion, CoJet silica coating). cemented tooth canal three cements: 10-Methacryloyloxydecyl dihydrogen phosphate (MDP)-containing cement, Bis-GMA-based resin, resin-based adhesive. As control group, no fixed cements. specimens set down into 25x25x25 mm fabricated blocks acrylic materials. Compression-shear tests samples conducted on Instron Testing Machine appropriate equipment. Results: In summary, combination roughening such as etching coating cement-containing MDP rendered highest strength. Conclusion: This vitro proposes cementation etched Cojet particles MDP-containing cement. How cite article: Eskitaşçıoğlu M, Toprak Gündüz D, Seyfioğlu Polat Z, Göncü Başaran E, Ayna E. Effects posts. Int Dent Res 2022;12(2):55-61. https://doi.org/10.5577/intdentres.2022.vol12.no2.a3 Linguistic Revision: English manuscript been checked least two professional editors, both native speakers English.