A comparative evaluation of stress distribution between conventional and platform switched implant supported crown in different densities of bone: A three dimensional finite element analysis Yakmi Sharuti1, Shetty Thilak2, Rodrigues Shobha J3,*, Shenoy Vidya K4, Saldanha Sharon5, Pai Umesh5, Mundathaje Mahesh5 1Postgraduate Student, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India 2Professor & Guide, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India 3Professor & Head, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India 4Professor & Coguide, Department of Prosthodontics, A J Institute of Dental Sciences, Kuntikana, Mangalore 5Associate Professor, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India *Corresponding author, Dr Shobha J Rodrigues, Professor & Head, Department of Prosthodontics, Manipal College of Dental Sciences, Mangalore Manipal Academy of Higher Education (MAHE), Email: shobha.j@manipal.edu
Online published on 1 November, 2018. Abstract Purpose To analyze and compare the stress distribution in 3D FEA models of Implant supported mandibular crown in different densities of bone with platform switched abutment and another with a conventional matching diameter abutment. Material and Method Eight finite element models of different densities of bone with conventional and platform switched implants were prepared and subjected to axial and oblique loading. Average von Mises stress values were evaluated quantitatively and qualitatively. Results Maximum stress for the cortical bone were noticed in the D4 bone followed by D3, D2 and D1 bone. There was no significant difference between the stress values of cortical bone and cancellous bone Conclusion Within limitation of this study greater stress was generated in cortical bone and in implant abutment complex in platform switched implants Top Keywords Platform switching, implant, density. Top |