publication . Article . 2018

Comparative effect of implant-abutment connections, abutment angulations, and screw lengths on preloaded abutment screw using three-dimensional finite element analysis: An in vitro study

Krishna Chaitanya Kanneganti; Dileep Nag Vinnakota; Srinivas Rao Pottem; Mahesh Pulagam;
Open Access English
  • Published: 01 Jan 2018 Journal: The Journal of the Indian Prosthodontic Society, volume 18, issue 2, pages 161-167 (issn: 0972-4052, eissn: 1998-4057, Copyright policy)
  • Publisher: Medknow Publications & Media Pvt Ltd
Abstract
Purpose: The purpose of this study is to compare the effect of implant-abutment connections, abutment angulations, and screw lengths on screw loosening (SL) of preloaded abutment using three dimensional (3D) finite element analysis. Materials and Methods: 3D models of implants (conical connection with hex/trilobed connections), abutments (straight/angulated), abutment screws (short/long), and crown and bone were designed using software Parametric Technology Corporation Creo and assembled to form 8 simulations. After discretization, the contact stresses developed for 150 N vertical and 100 N oblique load applications were analyzed, using ABAQUS. By assessing dama...
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Subjects
free text keywords: Original Article, Dental, implant, preload, screw, Oral Surgery, General Dentistry, Screw thread, Finite element method, Materials science, Abutment, In vitro study, Thread (computing), Implant abutment, Structural engineering, business.industry, business, Abutment Screw, Conical surface, lcsh:Dentistry, lcsh:RK1-715
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