Stress variations in recast Ni-Cr alloy--a finite element analysis.
A finite element analysis was carried out to analyse the stress variations in a mandibular posterior fixed partial denture (FPD), made of recast nickel-chromium alloy. A two dimensional finite element model was developed and then analysed with STAAD III/ISDS program with an occlusal load of 1 kg applied to the casting surface. The analysis revealed that the connectors experienced maximum stresses and the generated stress values decreased within the fixed partial denture made of recast Ni-Cr alloy. It seemed unlikely that FPD inspite of being made of recast alloy might fail before the other tissue components show signs of degeneration thus establishing the potential for recycling the Ni-Cr alloy in actual dental practice.
Isaac
L
L
Department of Prosthodontics and Maxillofacial Prosthetics, College of Dental Surgery, Mangalore-575 001, India.
Joseph
M
M
Bhat
S
S
Shetty
P
P
D001732:Bite Force; D002858:Chromium Alloys / Q000737:chemistry*; D019245:Compressive Strength; D003198:Computer Simulation; D000044:Dental Abutments; D003734:Dental Casting Investment / Q000737:chemistry*; D003735:Dental Casting Technique; D019232:Dental Restoration Failure; D003830:Denture, Partial, Fixed; D004548:Elasticity; D020342:Finite Element Analysis; D006801:Humans; D008422:Materials Testing; D013314:Stress, Mechanical; D013718:Tensile Strength
D002858:Chromium Alloys; D003734:Dental Casting Investment