Evaluation and Comparison of the Shear Bond Strength of Porcelain Repair System for Fractured Metal-Ceramic Prosthesis Using Ni-Cr and Co-Cr Alloys: An In-Vitro Study Kulkarni Anand1, Rodrigues Shobha2, Mahesh M3, Shetty B Thilak4, Pai Umesh3, Sharon S3, Hegde Puneeth5 1Postgraduate, Department of Prosthodontics & Crown and Bridge, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India 2Professor and Head, Department of Prosthodontics & Crown and Bridge, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India 3Associate Professor, Department of Prosthodontics & Crown and Bridge, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India 4Professor, Department of Prosthodontics & Crown and Bridge, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India 5Assistant Professor, Department of Prosthodontics & Crown and Bridge, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India Online published on 27 November, 2019. Abstract Purpose The aim of the study was to evaluate and compare the shear bond strength of porcelain repair system using Ni-Cr and Co-Cr alloys. Method Thirty discs of base metal alloy were fabricated and divided into 5 subgroups Control, Roughened with the diamond point, Air abrasion/Sandblasting Hydrofluoric acid treatment, Phosphoric acid treatment. Shear bond strength testing and mode of failure was evaluated using ANOVA and Post Hoc Tukey Test, Results The least bond strength was seen in the control group and the highest in Air abrasion followed by hydrofluoric acid. Conclusion Use pf intraoral porcelain repair may be considered as the viable and economical treatment option, Top Keywords Intraoral, ceramic repair. Top |