title: Bone response from a dynamic stimulus on a one-piece and multi-piece implant abutment and crown by finite element analysis.
abstract: The present study was done to evaluate the effects of different types of abutments on the rate and distribution of stress on the bone surrounding the implant by dynamic finite element analysis method. In this study two ITI abutment models-one-piece and multi-piece-along with fixture, bone, and superstructure have been simulated with the help of company-made models. The maximum Von Mises stress (MVMS) was observed in the distobuccal area of the cortical bone near the crest of implant in two implant models. In the multi-piece abutment, MVMS was higher than the one-piece model (27.9 MPa and 23.3 MPa, respectively). Based on the results of this study, it can be concluded that type of abutment influences the stress distribution in the area surrounding the implant during dynamic loading.
authors: 1  Department of Fixed Prosthodontics and Occlusion, Tehran University of Medical Sciences, Tehran, Iran.
authors: Habib
authors: H
authors: Hajimiragha
authors: Mohammadreza
authors: M
authors: Abolbashari
authors: Saeed
authors: S
authors: Nokar
authors: AmirHossein
authors: A
authors: Abolbashari
authors: Mehrdad
authors: M
authors: Abolbashari
mesh_terms: D001696:Biomechanical Phenomena; D002484:Cementation / Q000379:methods; D003198:Computer Simulation; D003442:Crowns; D059605:Dental Implant-Abutment Design; D003764:Dental Materials / Q000737:chemistry; D003776:Dental Porcelain / Q000737:chemistry; D019094:Dental Prosthesis, Implant-Supported; D055119:Elastic Modulus; D020342:Finite Element Analysis; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D008437:Maxilla / Q000502:physiology*; D008954:Models, Biological; D013314:Stress, Mechanical; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry; D019415:Torque
chemical_list: D003764:Dental Materials; D006047:Gold Alloys; D003776:Dental Porcelain; D014025:Titanium
keywords: finite element analysis; implant; multi-piece abutment; one-piece abutment; stress