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ORIGINAL RESEARCH
Year : 2013  |  Volume : 3  |  Issue : 2  |  Page : 673-677

A three dimensional finite element analysis of stress distribution on implant supported prosthesis for kennedys class II situation with variations in prosthetic designs


1 Senior Lecturer, Dept. of Prosthodontics, PSM Dental College & Research, Akkikavu, Kerala, India
2 PG Student, Dept. of Pedodontics and Preventive Dentistry, Vinayaka Missions Dental College, India
3 Senior Lecturer, Dept. of Conservative Dentistry, PSM Dental College & Research, Akkikavu, Kerala, India

Correspondence Address:
Dr. Bibin Bhaskaran
Senior Lecturer, Dept. of Prosthodontics, PSM Dental College & Research, Akkikavu, Kerala
India
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Source of Support: None, Conflict of Interest: None


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Aim : This study aimed to analyze and compare the stress distribution on different implant supported fixed prosthesis designs. Three finite element models were simulated in which model 1 simulated a two unit implant supported fixed prosthesis in the region of 36, 37 which were not splinted, model 2 a simulated two unit splinted implant supported fixed prosthesis in the region of 36, 37 was simulated with a metal ceramic superstructure. A force of 100 N was applied to the models at an angle of 30 degrees, offset from the vertical axis and directed at the centre of the occlusal surface of each of the 3 crowns. Von misses stresses were analyzed in all the two models and influence of various occlusal materials on stress distribution at the abutment crown interface and surrounding bone were evaluated in the model which showed least stress in the implant bone interface. Results showed evidence of uniform load sharing for the splinted prostheses compared to the other prostheses designs


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