title: Analysis of the biomechanical feasibility of a wide implant in moderately atrophic maxillary sinus region with finite element method.
abstract: OBJECTIVE
  The aim of this study was to evaluate the biomechanical feasibility of a short wide implant in a moderately atrophic posterior maxilla.
  
  
  METHODS
  A normal maxillary posterior section with a standard screwed implant (model 1) and a moderately atrophic maxillary posterior section with a short wide screwed implant (model 2) were created. The maximum von Mises stresses in maxilla and the maximum displacements in the implant-abutment complex were evaluated.
  
  
  RESULTS
  When the implant diameter exceeded 5.0 mm, the most stable and minimal value of stress in maxilla and displacement in the implant-abutment complex could be achieved in model 2, which were almost all lower than those in model 1.
  
  
  CONCLUSIONS
  The effect of a short wide implant in the moderately atrophic maxillary sinus region is favorable and similar to that of the standard implant in the normal sinus region. From the biomechanical point of view, implant diameter exceeding 5.0 mm is a relatively optimal selection in a moderately atrophic maxilla.
authors: Department of Orthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China.
authors: Tao
authors: T
authors: Li
authors: Xinjie
authors: X
authors: Yang
authors: Dawei
authors: D
authors: Zhang
authors: Hong
authors: H
authors: Zhou
authors: Jinling
authors: J
authors: Shao
authors: Yin
authors: Y
authors: Ding
authors: Liang
authors: L
authors: Kong
mesh_terms: D016301:Alveolar Bone Loss / Q000534:rehabilitation*; D001696:Biomechanical Phenomena; D003198:Computer Simulation; D015921:Dental Implants; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis / Q000379:methods; D005240:Feasibility Studies; D020342:Finite Element Analysis; D006801:Humans; D008437:Maxilla / Q000601:surgery*; D008443:Maxillary Sinus / Q000601:surgery
chemical_list: D015921:Dental Implants